The Haldex Coupling Filter is responsible for keeping dirt and other debris from contaminating the fluid and other components of the drivetrain, allowing the entire system to run smoothly. While manufacturer recommendations can vary, most Haldex coupling filters should be replaced every 40,000 miles. This is because the filter’s check valve can wear over time from constant exposure to sediments in the fuel. Most Hadlex coupling filters are sold with a filter element, sealing cover, and spring.
Half doors are found on convertible jeeps. These doors don’t have power windows or other heavy accessories; they’re just panels that swing from a latch. Half doors give a vehicle a distinct look and open feel since there isn’t a thick, heavy door in your way. Some half doors don’t even have windows, while other half doors come with sliding glass windows. Half doors can be purchased in sets of two and come in a variety of colors.
The half door insert is a door pin insert on the half door of vehicles like the Jeep Wrangler. This part might be needed if the old half door pin inserts have worn out or developed issues like fractures. Half door inserts are mounted on the lower steel half doors and accept door pins. The half door needs half door inserts to remain attached to the rest of the vehicle.
The Half Shaft Seal is a seal for the rear axle’s half shaft, a drive axle that delivers power to the driving wheels. The rear axle comes in two halves called the half shafts, which are connected by the differentials. The rear axle rotates with the vehicle’s wheels, and it has a seal that keeps dust and other debris from entering the hub or wheel bearing. This protects the hub from corrosion, which can negatively affect the drivetrain’s performance.
A Hall Sender, also known as a Hall effect sensor, is a device designed to detect and react to nearby magnetic fields. It typically sends what info it gathers about this magnetic field, such as magnitude and strength, to a switch or the powertrain control module (PCM) for further processing. Hall senders are sometimes connected to a long wire with multiple ends. These senders work based on the Hall effect, which was discovered in 1879 by Edwin Hall.
Halo Lights or angel eyes are luminous rings installed in the headlight assembly to create a sharp look.
Halo lights first made their debut on the 2001 BMW 5 Series and served as daytime running lights.
Halo lights are typically made from acrylic rods, which are heated and bent to form a ring. From there, 5mm LEDs are inserted at the ends.
The Hand Cleaner is a type of cleanser specifically designed to remove bacteria, grease, and other gunk from your hands. Antibacterial hand cleaners usually have fragrance and moisturizing ingredients that leave your hands feeling clean and smooth. They come in different forms, such as liquid cleaners and heavy-duty cleaning wipes. It’s best to keep a bottle of liquid hand cleaner or a tub of cleaner wipes in the car to easily clean up after doing any emergency repairs.
A hard top molding is a gasket or seal on convertible hard tops. The molding between the hard top and the vehicle’s body creates a seal that prevents water from entering the cabin. Like many rubber or elastomers, these moldings can break down, crack, and harden after several years of use. Hence, they’ll need to be replaced to retain a waterproof seal between your vehicle’s cabin and the environment. Hard top moldings come in various shapes and sizes, depending on the vehicle’s hard top shape and specifications.
The hard top mounting knob is a mounting screw knob with a threaded steel post that securely fastens the hard top to your Jeep’s tub. This part is needed if you add a hard top to your vehicle or need replacements for worn-out or damaged hard top mounting knobs. You can usually find hard top mounting knobs screwed into their holes on the vehicle’s tub. The hard top needs these mounting knobs to stay attached to the tub while you drive your Jeep.
The Hard Top Release Bushing is a type of bearing that helps facilitate rotational and linear movement between a vehicle’s hard top lock and the top of the windshield frame. It absorbs vibrations and reduces friction between the parts, making for easy hard top locking and release. The softened impact when locking is important for hard tops that need to open and close regularly. These bushings are typically ring-shaped and made of white plastic.
A hardtop is a kind of roof found in convertibles, jeeps, or trucks. Hardtops use a hard material, such as plastic, to provide a rigid roof for a vehicle. Hardtops are generally sturdier than soft tops and provide better sound dampening. Hardtops are typically harder to disassemble or fold down, as they don’t fold like a soft top. Converting soft-top vehicles into hardtop can be a good option if you typically don’t fold down the roof.
Hardtop hardware is a set of components that include bolts, nuts, retainers, and screws. These parts secure a hard top to the vehicle’s chassis. Hard top hardware kits are typically made for specific vehicle make and models. Hence, the kit might only fit the make and model that it’s made for.
The Hardtop Hoist is equipment that can lift Jeep hardtops and other outdoor gear off your vehicle’s top. This hoist might be needed if you often remove and return the hardtop for various reasons, such as the weather. Hardtop hoists are usually attached to the ceiling of your garage or carport, and most products can switch between manual and power operation.
Hardtops, hard truck bed tops, and other heavy parts located on top of the vehicle are easier to remove and reinstall with the help of the hardtop hoist.
The harmonic balancer is a part that dampens vibrations produced by the crankshaft’s torsional twisting. Also called crankshaft damper and vibration damper, this part might be needed to resolve issues like engine vibrations, unusual noises, or a damaged or worn-out balancer. The harmonic balancer is on the crankshaft and absorbs vibrations generated by the crankshaft as it turns from side to side. The engine needs this part to handle crankshaft vibrations that can spread to the rest of the engine.
The Harmonic Balancer Puller is a tool for removing balances, steering wheels, pulleys, and gears that have tapped holes. It occasionally comes in a set with different-sized bolts for various applications. Its primary use is for replacing and installing harmonic balancers, which are also known as harmonic dampers. These balancers attach to the crankshaft snout to quell the crankshaft harmonics and protect it from cracks and subsequent failure.
The Hazard Flasher Switch is a switch on your dashboard that lets you turn your hazard flashers on and off. Hazard flashers are warning lights that inform other drivers to be extra careful when they’re approaching, overtaking, or passing your vehicle. Pressing the hazard flasher switch activates your hazard flashers, and depressing it will turn them off. This switch is characterized by a red triangle symbol and is typically located in the center of the dashboard, where it’s easy to spot.
Head gasket sets include different types of engine gaskets, such as the intake gasket and the fuel pump block-off gasket. They also contain valve cover grommets, fuel line copper washers, thermostat seals, and O-rings.
The components included in the set vary depending on the vehicle they’re for.
A headache rack refers to a truck accessory that you can add to the truck bed. It’s usually made of aluminum or steel, and it is usually mounted behind the cab of the truck. The main purpose of a headache rack is to act as a barrier against shifting cargo during sudden stops or accidents.
The Header Bolt is a type of fastener that secures the exhaust manifold to the cylinder head. Header bolts are usually made of stainless or heat-treated steel that can withstand the high temperatures of the engine. They’re easy to install and adjust, but they are much more prone to loosening than studs.
The Header Gasket is a sealing and cushioning piece of the engine that’s between the vehicle’s header and the rest of the engine. It’s joined to those parts via a set of bolts. It helps prevent internal spills and keeps fluids or exhaust gases from escaping where the header gasket and the engine meet. The exact design and size of the header gasket depend on the size and type of header installed.
A header panel, also called a headlight mounting panel, refers to the component where the grill and headlights are attached. It’s usually made of sheet metal, plastic, or fiberglass. This panel connects the grille to the car’s headlights.
A Header Pipe routes exhaust gases from the engine to the exhaust system, eliminating backpressure in the exhaust manifold. It is typically made from thin-walled stainless tubing and features equal primary tubes that allow the engine to breathe more easily.
Headlights are installed in front of the vehicle to make the road more visible at nighttime or under poor weather conditions. Headlights keep drivers and pedestrians safe on the road by providing much-needed illumination. There are three different types of bulbs used in headlights: halogen, xenon, and LED.
The headlight adapter is a length of wire that allows certain aftermarket headlights to connect to a vehicle’s wiring harness. Headlight adapters are female plugs with a small length of wire that leads into a male plug. The female plug would connect to the headlights while the male plug would plug into the vehicle’s wiring harness, powering the headlights. If you’re upgrading your vehicle’s headlights, some aftermarket headlights will come with a headlight adapter. However, some aftermarket headlights will require you to purchase the adapter separately.
The headlight adjust screws are located on top of each headlight. Each headlight typically has two headlight adjust screws. One screw angles the headlights vertically. Meanwhile, the other screw controls the headlight’s horizontal direction. Using headlight adjust screws to aim the headlight beam is crucial because they ensure that the headlights are correctly aimed at the road. Proper headlight positioning is crucial to provide adequate visibility without blinding oncoming drivers.
A Headlight Adjusting Motor, also called a headlight leveling motor, is a device that adjusts the angle of headlights to avoid blinding oncoming vehicles. Some vehicles with pneumatically or electrically operated systems have headlight adjusting motors activated manually with a switch. Others with dynamic or semi-static leveling systems are triggered by a control unit, which uses data gathered by the front and rear axle sensors.
The headlight bezel is a piece of plastic or metal trim surrounding a vehicle’s headlight. This part is meant to decorate the headlight by accentuating its outline. Headlight bezels are typically finished in chrome or black trim. Headlight bezels are typically built for specific vehicle headlights and can be purchased individually or in pairs.
The Headlight Bracket is a part that secures the headlight assembly to the vehicle’s frame. This part might be needed to replace a broken or worn-out headlight bracket. Headlight brackets mount on the vehicle’s front and keep the headlight from vibrating while driving. Headlights need their brackets to keep them pointed straight at the road.
The Headlight Bucket is the component that houses the headlight of a motorcycle. Headlight buckets vary in size, shape, and material, so you’ll have to find one that best fits your bike. You can choose from different types of mounts, such as side or bottom mounts. They also come in different finishes, but black and chrome are the most popular. You can also get a low-profile headlight bucket that allows you to mount your headlights as close to the forks as possible.
The Headlight Bulb is a component of the headlight assembly that illuminates the front of a vehicle. The most common types of headlight bulbs are halogen, HID, and LED bulbs. Most modern vehicles use halogen and LED headlight bulbs because they’re affordable, bright, and easy to replace.
The Headlight Bulb Cap is a cap that protects the back of the headlight from dirt coming from inside the vehicle. It fits on the back of the headlight assembly and lowers the chances of condensation inside the headlight. The exact size and depth of headlight bulb caps differs depending on the vehicle make and model. When replacing the headlights in a vehicle with aftermarket or LED alternatives, it might become necessary to alter or replace the existing headlight bulb caps.
The Headlight Control Module controls a vehicle’s auto-leveling feature, switching between the high beam and low beam lights.
When disconnected, the headlight control module generally won’t affect the activation of the headlights.
A headlight conversion kit typically contains the parts and tools needed to upgrade a vehicle’s headlights with more advanced lighting technology. These kits are commonly designed to convert traditional halogen headlights to LED. A standard kit typically includes the bulbs, wirings, and additional hardware used during installation.
A Headlight Cover is a component that protects the headlights from dirt, stone, and debris when they’re not in use. Some covers are flipped up by an electric or vacuum-operated device when the headlights are on.
A headlight dimmer switch is designed to switch between high and low-beam headlights. This switch is commonly built into the steering wheel column stalk. The driver can turn on the low-beam headlights by turning the knob on the stalk. Meanwhile, high-beam headlights are turned on by either turning the knob further or by pushing the steering column-mounted stalk forward or backward, depending on the vehicle model. The headlight dimmer switch on some vehicles can include steering column-mounted stalks that control other features like windshield wipers.
The headlight door is a frame that externally encases the headlight assembly on older vehicle models. Also called a headlight bezel or headlight trim, this part might be needed if the current headlight door has worn out or become too damaged. Headlight doors are mounted on the vehicle’s front. The headlight lens uses the headlight door as a mounting point to keep it in place.
The Headlight Housing is responsible for carrying and protecting various parts of the headlight. It contains the headlight bulbs, reflectors, and cables. It also shields them from heat and moisture. It can be found in the front bumper of the vehicle.
The Headlight Lens is a transparent cover that protects the bulb, reflectors, and other parts of the headlight assembly from moisture, stones, dust, and other debris. It’s often made from premium polycarbonate, acrylic, or other similar materials with enhanced light transmission. This allows for even light distribution on the road while protecting the light source from harsh weather and other environmental factors. Headlight lenses also vary in color, style, and pattern, giving drivers a fun way to customize their ride.
The Headlight Motor is an electric motor that powers the pop-up function on pop-up headlights. These motors raise and lower the pop-up headlights, pushing them up when they’re turned on and retracting them when they’re turned off. The headlight motor is controlled via a series of rotary switches and brushes. Pop-up headlights are typically found on vintage vehicles, and so headlight motors are used for vintage vehicle repairs. A set of wires linked to a connector attaches to the motor to connect it to the rest of the vehicle’s electrical system.
A headlight mount or headlight mounting kit is a set of equipment that you might need to attach your vehicle’s headlights. It can include screws, bolts, mounting brackets, or other hardware. Headlight mounts are responsible for keeping your headlights secured firmly in place during travel. Hence, the hardware needs to be sturdy enough to withstand the vibrations from bumps and regular use. The headlight mounting hardware also features anti-corrosion coating and materials to prevent wear and tear over time. Otherwise, your headlights might get knocked out of place over time.
The headlight protector kit is a set of transparent films that cover your vehicle’s external lights, particularly the headlights. You may want one of these kits to help protect your headlights from chipping, scratches, and other damage. Headlight protectors are designed to go over the surface of the headlights without interfering with the light beams. In addition to the headlights, fog lights, parking lights, and turn indicators may also need protectors to protect them from minor damage.
The Headlight Relay is a switch that allows a low-current circuit to control a high-current circuit, allowing the headlight to function efficiently. It typically consists of a coil, contacts, and a control circuit. Headlight relays ensure that the headlights receive a consistent power supply. Because the electrical load is transferred from the switch to the relay, the headlight relay also reduces the load on the switch, preventing potential overheating and failure.
A Headlight Restoration Kit contains products and tools for sanding off the damaged coating on the headlight lenses caused by deteriorating polycarbonate. A typical restoration kit will also come with the necessary materials you can use to reapply a protective coating over the lenses.
While headlight restoration kits can help make your headlights look brand new, these aren’t a permanent fix for worn-out headlights. Over time, the hazing effect will return to your headlights.
The Headlight Seal keeps the headlight protected against contaminants like moisture. This part might be needed if a compromised seal leads to dirt, dust, and water entering the headlights, causing issues like electrical shorts. Headlight seals are mounted on a vehicle’s headlight assembly, and they help keep the internal parts clean and dry. The headlight needs its headlight seal to protect it during bad weather and while driving through dirty areas.
The Headlight Socket is an electric component that holds the headlights in a vehicle. It connects the headlight bulb to the rest of the electric system, providing it with power when turned on. There are different types of headlight sockets to accommodate various headlight types. Some headlight sockets can take in typical headlight bulbs and fog light bulbs. Other automotive car light sockets are designed to be used with indicator bulbs, tail light bulbs, registration bulbs, and cornering light bulbs.
The Headlight Switch lets the driver control the following lights: headlights, tail lights, side marker lights, front parking lights, dash lights, and interior lights.
The headlight switch is directly connected to the battery. If the switch is left on manually, the battery could get drained.
The Headlight Trim is a component that goes around the headlight of a vehicle, fastening the lens to the vehicle. It protects the headlight from damage caused by road debris and minor impacts while giving the vehicle a more distinct look from the front.
The headlight washer cover is a small, rectangular body panel located below your vehicle’s headlights. When activated using a button on the dashboard or steering-mounted controls, the headlight washer cover unveils the headlight washer, which sprays the headlight with a cleaning solution. Headlight washer covers are typically primed and ready to be painted to your vehicle body’s color. Depending on the vehicle, some washer covers can also have a spring that keeps it retracted in the vehicle body.
The headlight washer fluid level sensor is a device that measures the amount of cleaning fluid in the washer reservoir. This part might be needed if you’re getting inaccurate, erratic, or no readings from the vehicle’s current or stock sensor. Headlight washer fluid level sensors are mounted in a vehicle’s washer reservoir. The headlight washer pump module uses the readings from the sensor to determine if there’s sufficient washing fluid.
The Headlight Washer Nozzle is a part of the headlight washer system, which removes mud, water spots, and other dirt on the lens. Headlight washer nozzles can vary in design, but in general, they draw water from the headlight washer system and spray it onto the headlight lens. This helps restore cloudy headlights, improving driver visibility. Most nozzles are made of high-quality plastic material that’s anti-aging, wear-resistant, and scratch-resistant. You can purchase nozzles in pairs or per piece.
The Headlight Washer Pump Connector is a plastic connector that links the headlight washer pump to the rest of the system. Headlight washers help reduce the grime and dirt on the headlight lens to improve night visibility. The pump connector allows the washer pump to shoot out cleaning solutions at high pressures to clean the headlights. A clean headlight lens has reduced refraction, and more of the light from the headlight bulb can escape through the lens.
AHeadlight Wiper Blade is the blade used to wipe and clean the windshield. It works similarly to windshield wipers and was popular between the 1980s and the 1990s. Headlight wiper blades were common in Saab, Volvo, BMW, and Jaguar vehicles.
The Headlight Wiring Harness provides power directly from the vehicle’s battery to the lighting system, allowing the bulb or HID ballast to operate independently of the vehicle’s original wiring system. This also provides the headlights a more consistent power source.
The Headliner is the material attached to a vehicle’s ceiling. It improves the look of the ceiling by hiding unsightly metal frames and wiring. The headliner also insulates the cabin and blocks out heat and noise. They are typically made of polyester, leather, vinyl, or suede.
The Headliner Fastener holds the headliner material in place. It helps secure the headliner to ensure that it fits snugly against the car roof. There are different types of headliner fasteners, such as headliner retainers, metal fasteners, and fabric fasteners. Headliner retainers are plastic clips that are used for vinyl, cloth, and suede headliners. Metal fasteners are made of steel or aluminum and used for thick headliners. Meanwhile, fabric fasteners are designed to blend seamlessly with the headliner and are often used in luxury cars.
A Heat Exchanger transfers heat from one medium to another. For vehicles, this is commonly referred to as the radiator.
A heat exchanger uses exhaust heat to assist the fuel evaporation process. In most vehicles, this part is usually built into the intake manifold, which is the area where exhaust gases and air-fuel mixture meet.
The heat exchanger gasket is a part that seals the mating surfaces of the expansion tank cover. This replacement part might be needed if you have leaks, contamination, or a damaged gasket. The heat exchanger gasket is mounted on the heat exchanger expansion tank and protects the tank from leaks and damage. The heat exchanger expansion tank needs the heat exchanger gasket to help keep the cover tightly closed and prevent leaks.
The Heat Exchanger Pipe is a pipe connecting to the heat exchanger, a device that transfers heat from one medium to another. Vehicles typically use air-cooled heat exchangers, which combine an engine jacket water cooler, oil cooler, and charge air cooler into a single unit. The pipe is highly effective in conducting heat and acts as a passive heat transfer device through a two-phase heat transfer mechanism.
The Heat Gun is a tool that heats and blows air across a surface. It might be needed if you have parts that need safe heating, such as tinting film that requires heat to adhere to or detach from the window surface. The heat gun can also be used to soften plastic parts to repair minor damage. Various parts and accessories might require some work with the heat gun.
A Heat Shield is a barrier that protects certain components from heat by shielding them from the heat sources. In vehicles, heat shields cover the engine block and parts of the exhaust system like the exhaust manifold. The heat shields thus protect all the components around these areas. By reducing the under-hood heat and intake air temperature, heat shields also enhance engine performance. Heat shields come in fixed (rigid) and flexible forms. Fixed heat shields are made of solid steel or aluminium and flexible heat shields are made from thermal textiles.
The Heated Seat Element Connector enables the heated seat’s heater element to connect to the vehicle’s wiring harness. This part might be needed if you have compatibility problems after replacing your vehicle’s wire harness or heated seat element. The heated seat element connector is on the tip of the heated seat element’s wire, and it splices onto the wiring harness to establish a connection. The heated seat needs this connector to receive power from your vehicle.
The Heated Seat Module Connector is an electric connector that links the heated seat module to the rest of the vehicle’s electrical system. It receives 12-volt DC output and channels it to the heating element, which then warms the seat as needed. The heating seat module connector has multiple wires running from its connector head. It varies in design depending on the heated seat’s design and setup in the vehicle.
The Heater Cable connects the heater to the temperature control on the dashboard, enabling adjustment of the heater’s output and flaps. Also called a heater control cable, this part might be needed if the existing or factory-issue cable develops a problem that interferes with your control of the heater. Usually found in the dashboard, heater cables allow you to set a comfortable temperature when it’s cold outside your vehicle. The heater depends on the cable to carry the correct input from the user.
The Heater Core is a heat exchanger that transfers heat from hot coolant to the vehicle’s cabin. It’s a key component in the vehicle’s heating system and is made up of tanks and fins. The heater core looks like a mini radiator with an inlet and outlet pump connected to the vehicle’s cooling system. The hot coolant flows to the heater core from the engine and a blower motor forces air through the heater core to warm the cabin.
The Heater Core O-Ring is a circular seal seated between the heater core and the inlet or outlet hose connectors. This tight seal prevents coolant from leaking into the cabin. Vehicles typically need two heater core o-rings per heater core, as each connector will need one o-ring. Heater core o-rings can vary in diameter and thickness, but they’re typically made of high-quality silicone that can withstand high temperatures and heat cycling.
A heater hose hooks up to your vehicle’s cooling system to take excess heat from the engine and use it for the heating and ventilation system. When the vehicle’s heater is activated, the heater hose transfers hot coolant from the engine into the vehicle’s heater core, which is the component responsible for heating the air that goes into the cabin. A heater hose’s length and shape vary depending on the vehicle model. Heater hoses can be made from rubber, steel, plastic, or aluminum.
The heater hose bracket is a metal part that secures the heater hose. This replacement part might be needed if the stock or current heater hose bracket has cracked or loosened. Heater hose brackets are found in various locations where heater hoses pass through, and they prevent the hoses from moving when coolant flows through them. Heater hoses need these brackets to prevent them from coming into contact with hot surfaces and sharp edges.
The Heater Hose Connector secures the heater hose to the heater core or water pump. It’s typically made of durable plastic or metal that can withstand the temperature and pressure of coolant flow. A damaged heater hose connector can cause coolant to leak from the cooling system, which can lead to the engine overheating. Heater hose connectors come in different sizes, so be sure to check the measurements of your heater hoses before buying a replacement connector.
The Heater Hose Fitting is a small connector that links the heater hose to different engine cooling system components. Among these components are the engine itself, the heater core, the radiator, and the water pump. The fittings have one end with screw-like coils to screw into the components and another end that fits inside the hose. They come in different configurations at different angles to suit various vehicles and heater hose configurations.
A heater knob is a small circular handle that’s used to change a vehicle’s HVAC settings. Heater knobs are simple pieces of plastic that mount onto a vehicle’s HVAC controls. They sometimes have textured grips to aid adjustments. HVAC heater knobs can come loose and get lost over time.
The Heater Pipe Line is a pipe that conveys hot air from the heater core to the passenger cabin. This part might be needed if the existing heater pipe line developed leaks and other issues that reduce the effectiveness of the HVAC. The heater pipe line attaches to the heater core. The heater needs the pipe line and associated parts to deliver heat to the rest of the vehicle.
Also known as the hot water valve, the Heater Valve is responsible for redirecting the flow of hot coolant from the engine to the heater core. This process warms up the air passing through the heater core, creating the hot air that passes through your vehicle’s vents. When you turn the heat up in your cabin, this prompts the heater valve to allow more hot coolant to pass through and warm up more air.
A Helmet Face Shield is a piece of protective gear for auto repair tasks that might endanger the eyes or face. It can prevent errant debris or sparks from striking the face when grinding, sanding, or riveting. A helmet face shield fits on the individual’s head and has a section that curves over the entire face. There are clear plastic face shields and more hardy ones built with more resilient materials for more dangerous tasks.
An HID Bulb Ballast limits the amount of current that flows in an electrical circuit. Aside from HID, metal halide and mercury vapor lights use ballasts to avoid a sudden rise in current.
A bulb ballast essentially regulates power and acts as an electrical resistor or reactance.
Ballasts can either be magnetic or electric.
A Hitch is an attachment mounted on the back of a vehicle for towing purposes. A hitch can either be a receiver or a fixed drawbar.
The receiver type features a rearward opening that can be connected to a mounting device. Meanwhile, a fixed drawbar hitch is typically built into the vehicle and has a hole for mounting a ball hitch.
The Hitch Adapter, also known as the reducer sleeve, is a tool that’s used in towing to help hitch accessories fit onto the receiver. Unlike hitch extenders, hitch adapters don’t increase the length of the receiver. Instead, they adjust the size of the receiver to accommodate accessories that are either too large or too small.
A Hitch Ball is a ball-shaped attachment that lets owners connect their trailer to a hitch. The ball ensures the trailer pivots and smoothly turns while towing. Hitch balls are made of steel and usually come in different diameters and weights.
The Hitch Cover is an accessory that hides the hitch whenever it isn’t in use. This protects the hitch from dirt and contaminant buildup. They also help prevent damage caused by rust, moisture, and physical impact.
A Hitch Lock locks the trailer to the towing vehicle. There are various types of locks, including receiver hitch locks, coupler hitch locks, and hitch pin locks.
A hood cable or hood release cable allows the driver to conveniently release their hood latch from inside the cabin. When the hood release switch is pressed, the hood release cable is pulled, disengaging the hood latch, which allows the hood to pop open. This cable is typically located under the dashboard or on the side panel near the driver’s seat. This cable is routed to the latch mechanism below the front grille.
The Hood Catch secures the sides of the car hood to the vehicle’s frame. This part might be needed if an existing or stock hood catch has worn out, broken down, or developed an issue that prevents it from keeping the hood down. Hood catches are mounted on either side of the car hood, and work with the hood latch to prevent the body panel from coming loose. The car hood relies on the hood catches to keep it still and stop it from opening while you drive.
The Hood Contact Switch, also known as the hood ajar switch or hood switch, is an electronic component that triggers an alarm when the hood is opened. It’s installed under the hood, and it’s typically made of durable metal. Hood contact switches are found in vehicles equipped with a remote start system or a vehicle theft alarm (VTA) system. When the hood is latched, the hood ajar switch is an open circuit. When the hood is closed, the switch is a closed circuit.
The Hood Insulation is a pliant sheet that attaches to the inside surface of a vehicle’s hood. It’s on the side that faces the engine bay. Hood insulation is made of tough materials to withstand the high-temperature environment that the engine creates as it runs. The insulation serves to muffle the running engine’s noise and vibrations. It also helps shield the hood’s paint from excessive engine heat. The exact design and size of the insulation varies depending on the vehicle’s make and model.
The Hood Latch is a type of fastener that keeps the hood down. The hood latch is typically attached to a handle. Pulling the handle will release the hood latch and expose the engine bay.
The Hood Panel, commonly referred to as the hood, is the component that covers vital car components, such as the engine. It shields the engine from external elements like debris, dirt, and water.
The Hood Release Cable is a component that lets drivers open the hood of a vehicle so that they can access the engine bay. It keeps the hood down and secures it when not in use. The cable also helps when the driver needs to manually open the hood of their vehicle if the electrical components malfunction and prevent the hood from being opened remotely.
A Hood Scoop is often an aftermarket installation that creates an opening to let more air enter the engine. A hood scoop can also be built into the vehicle during manufacturing.
Hood scoops come in several forms, including shaker scoop, ram air intake, intercooler scoop, and cowl induction.
The Hood Vent is a feature that improves engine performance and cooling by extracting hot air from the engine bay. It also lets hot air escape, promoting better airflow through the engine bay.
The Horn produces a loud, audible noise to alert other vehicles and people on the road that the vehicle is approaching. Using the horm is commonly done in streets, turns, and other areas where visibility is low.
The Horn Button is the button in the middle of the steering wheel or dashboard that activates the car’s horn to alert drivers or pedestrians of your vehicle’s presence.
A Horn Kit typically includes a horn, air compressor, and air tank. Some kits might contain other minor components like the pressure switch, solenoid valve, safety blow-off, and air gauge.
Hub Caps are responsible for covering the nuts and bolts that secure and fasten the wheels of your vehicle. Hub caps are made of different materials including plastic, metal, or a combination of the two. There are two types of hub caps: clip-on and bolt-on hub caps.
The HVAC Air Adjustment Control Motor is responsible for controlling air distribution in various A/C vents. It responds to the signal sent by the HVAC control unit. This motor is crucial to the operation of your HVAC system.
An HVAC air inlet actuator is an electric motor inside a vehicle that helps provide air ventilation. It does so by controlling the temperature of the air flowing from the vents by mixing hot and cold air from the heater core and the evaporator.
There are two types of door actuators: the mode door actuator and the recirculation door actuator. The former controls vents that have airflow (floor, panel, or front, defrost), while the latter controls the intake of air into the system by bringing outside air or recirculating air inside.
The HVAC Air Inlet Door Actuator Connector is used to connect electrical components, such as the actuator and the harness terminals. The actuators themselves are motors that can move the inlet door back and forth, and the connectors are what allow these motors to move by drawing power from the terminals.
The HVAC air inlet housing is a component that’s responsible for leading air from the vehicle’s exterior to the evaporator where air is cooled. The air inlet is typically located below the windshield because this area allows the HVAC system to take in fresh air.
The HVAC air inlet position sensor connector is a component that attaches the sensor monitoring the HVAC air inlet to the cable leading to the vehicle’s powertrain control module (PCM). It enables the transmission of readings on whether the air inlet is open or closed and how wide the opening is, which the control module can use to adjust relevant processes.
A Comprehensive Overview of Air Conditioning and Heating in Vehicles
The HVAC Blower Motor Connector is a set of wires that connects the HVAC blower motor to the blower motor resistors. The connector allows the resistors to control the blower motor’s speed depending on the number of resistors that are bypassed in the stepped resistor circuit. When no resistors are bypassed, they drop the maximum amount of voltage from the circuit, lowering the current that runs through the connector to the blower motor. This drop lowers the blower motor’s speed. The fewer resistors are bypassed, the higher the current, and the faster the blower motor runs. This is how climate control systems without automatic temperature controls adjust their fan speeds.
The HVAC Blower Motor Relay supplies power to the fan, letting it circulate air. It is responsible for controlling the flow of current between the power source and the motor.
The HVAC Blower Relay controls the voltage that goes into the blower motor, which generally affects fan speed.
The HVAC blower relay acts as an electromagnetic switch. It has a coil that becomes a powerful magnet, pulling the secondary contacts together.
A power surge can cause the relay’s fuse to sever the circuit, preventing the surge from reaching the blower motor.
The HVAC Control Vacuum Control Valve controls fluid flow and pressure to meet operational demands. This particular valve can control hot water or coolant that flows to the heat exchanger, which heats the air pumped into the cabin.
The HVAC Cut-Off Switch disables the A/C compressor if the pressure in the HVAC rises or drops to dangerous levels. Sometimes called an HVAC pressure switch, this part might be needed if the vehicle’s current switch stops working. The HVAC cut-off switch sends a signal to the A/C compressor to turn itself off. The HVAC relies on its cut-off switch to avoid taking damage from running in excessively high-pressure or low-pressure conditions.
The HVAC Defrost Mode Door Actuator is a part of the HVAC system that controls the HVAC defrost mode door. When activating defrost mode, the HVAC defrost mode door actuator closes the door to redirect airflow to the defrost duct. This prevents the air from flowing to the register. Most modern vehicles are equipped with an actuator that has an electric motor, plastic gears, and a built-in feedback potentiometer. When the actuator fails, the door can get stuck and prevent air from entering the cabin through the HVAC vents.
The HVAC Heater Blend Door Actuator (or blend door actuator) controls the airflow by directing it through different vents. It operates the climate control system by facilitating the signal you send through the dial that controls the cabin’s temperature.
An HVAC Heater Relay connects the heater to the switch that turns it on or off. It accomplishes this by controlling the flow of electricity, allocating it to the heater when the switch is on, and halting the flow of electricity when the switch is off.
The HVAC Mode Door Actuator or Blend Door Actuator is a small electric motor that controls a vehicle’s climate system by directing airflow through different vents. The signals for adjusting temperature, controlling airflow, and activating the defrosters go through this actuator.
The HVAC Pressure Switch is responsible for determining when pumps in the HVAC system, such as air conditioners and heaters, should be activated or deactivated. This is done according to different pressure thresholds to ensure the system is operating at peak conditions. If the pressure is too high or too low, the compressor will malfunction and damage itself. You can typically find HVAC pressure switches along the top or bottom of your cooling or heating system.
The HVAC relay is a small part of the HVAC system that regulates electricity between control panels and A/C system components. Like any relay, the HVAC relay is an electronic switch that manages the flow of electricity. The HVAC relay controls electricity flow to HVAC components like the blower motor or compressor.
The HVAC System Switch is often a binary pressure switch that halts the compressor in response to a lost system charge or very low temperatures. This part might be needed if the existing switch has failed or worn out. Binary pressure switch-type HVAC system switches are found between the condenser and expansion valve on the A/C’s liquid side; they stop the compressor when the head pressure rises to unsafe levels. The A/C needs the HVAC system switch to help manage pressure and temperature levels.
The HVAC Temperature Control Switch regulates the air cooling and heating systems. Depending on the driver’s desired setting, the control switch will regulate air flow, fan speed, air distribution, and temperature accordingly.
The HVAC temperature control switch is an electric device, which can fail due to corrosion and electrical faults.
Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.