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T-Belt Tension Adjuster

A T-belt tension adjuster is a component that adjusts and maintains the timing belt’s specified tension.

A T-belt tension adjuster helps prolong the lifespan of the timing belt while reducing engine noise and vibration.

A hydraulic timing belt tension adjuster is a common type of tensioner found in many vehicles. This uses pressurized engine oil to move the piston, moving the tensioner pulley in the process.

Hydraulic T-belt tensioner adjusters are usually self-adjusting.

System

Engine

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T-Belt Tensioner Bolt

The timing belt tensioner is a pulley that pulls on the timing belt to reduce slack. The timing belt tensioner bolt is a bolt that secures the tensioner in place. This bolt is typically removed when the tensioner needs to be removed during service. Sometimes, the bolt head or the bold thread can get stripped because it requires a lot of torque to rotate. When this happens, the timing belt tensioner won’t be able to be removed and mechanics won’t be able to service components on the timing belt.

Category

Engine

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T-Belt Tensioner Damper

The timing belt (T-belt) tensioner damper helps keep the timing belt tense, and it uses either spring tension or hydraulic pressure to help the tensioner do its job. You must replace the damper when it shows symptoms like the belt jumping teeth or screeching noises, and you must also get a new one to go with a replacement timing belt. The T-belt tensioner damper connects to the tensioner and applies force on the tensioner to tension the timing belt. 

System

Engine

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T-Belt Tensioner Lever

The T-Belt Tensioner Lever is a lever that allows you to adjust your timing belt accordingly, so you can make sure your engine is running smoothly. Together with the tensioner, the lever helps prevent your timing belt from slipping by tightening it. Timing belts are wear parts that usually need to be replaced every 60,000 to 90,000 miles, and most mechanics recommend replacing your t-belt tensioner lever whenever you replace your timing belt. 

System

Engine

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T-Belt Tensioner Pulley

The T-Belt Tensioner Pulley is the pulley that keeps the timing belt taut, which helps prevent it from slipping or jumping. The t-belt tensioner tensioner can usually be found at one end of the timing belt. It works by applying force to the system using the force it transfers from a hydraulic piston or spring. Typically, the t-belt tensioner pulley is changed along with the timing belt. A faulty tensioner can lead to engine performance issues as the valve timing gets thrown off.

System

Engine

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Tach Adapter

A Tach Adapter is a device that produces a tach signal on old vehicles that are incapable of generating conventional tachometer signals.

Most tach adapters on the market are designed to work with both old and new voltage-triggered tachometers.

System

Interior

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Tachometer

The tachometer is a tool that measures the working speed of an engine. It tracks the overall revolutions per minute (RPM), and this data can be used to gauge how hard an engine is working and whether a vehicle has a manual or automatic transmission.

It’s important to know how hard an engine is working because an engine with an excessively high RPM can destroy itself. On the other hand, an RPM that’s too low is typically a sign that the vehicle has one or more malfunctioning components.

System

DIY

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Tachometer Programmer

A Tachometer Programmer is a device used to configure and calibrate certain tachometers, which are used to measure the rotational speed (RPM) of an engine or other rotating components.

System

Interior

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Tachometer Sensor

The Tachometer Sensor measures the rotation speed of the engine shaft. It’s a crucial component of the tachometer, which is a gauge on the dashboard that measures the engine’s speed. This component helps the drive determine when to change gears. 

The tachometer is one of the most important parts of vehicles with manual transmissions. This sensor is needed for proper gear shifting to maximize fuel economy. They are present in vehicles with automatic transmissions but are not as mportant.

System

Interior

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Tail Light

Tail lights make a vehicle visible from behind, helping reduce the risk of rear vehicle crashes during low-visibility conditions. Unlike headlights, which are white, tail lights are red in color.

Tail light bulbs are available in LED, xenon, and halogen variants.

System

Car Lights

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Tail Light Cover

A tail light cover is an accessory that fits over the tail light to give it a different style. It also prevents debris from damaging the tail light.

Tail light covers come in various designs and colors and are typically made from plastic or acrylic material.

System

Car Lights

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Tail Light Housing

The Tail Light Housing contains the bulb, wiring, and lens of a tail light assembly.

System

Car Lights

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Tail Light Lens

The Tail Light Lens covers the light bulb of a tail light, protecting the bulb while dispersing and diffusing the emitted light. This part might be needed to replace a cracked, damaged, or discolored tail light lens. The tail light lens fits over the tail light and keeps the bulb dry while distributing light in a uniform pattern. The tail light relies on the tail light lens to help extend the light bulb’s service life and produce sufficient illumination.

System

Car Lights

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Tail Light Panel

The Tail Light Panel is a rear panel that comes with cutouts specifically designed to fit a vehicle’s tail lights. Tail light panels can come in different colors, shapes, and sizes. They’re typically made of high-quality metal such as stainless steel and come with pre-drilled holes for mounting the license plate. Some panels come with pre-built backup LEDs and side lights, making them a great way to personalize your car.

System

Car Lights

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Tail Light Trim

Tail Light Trim is a type of aesthetic or functional trim that fits around a tail light. Tail light trims enhance tail light appearance and are made from stainless steel, ABS, or chrome. These trims can also fill in gaps when the original tail lights have been replaced by popular alternatives. They prevent the elements from entering through the gaps and protect the tail lights from damage.

System

Car Body

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Tail Light Wiring Harness

A Tail Light Wiring Harness consists of different electrical wiring, hoses, and sockets that work together to keep the tail light illuminated. It’s usually located on the lower side of the car and connected to a junction box that supplies power.

System

Car Lights

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Tail Pipe

The Tail Pipe directs exhaust gases from the exhaust manifold to the rear of a vehicle for venting into the atmosphere. This is done to prevent the exhaust system from overheating due to the buildup of hot gasses. The tail pipe is usually on the rear end of your vehicle at the end of the exhaust system.

System

Exhaust System

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Tailgate Actuator

The tailgate actuator is the tailgate’s locking mechanism. It can be either manually or electronically operated with a button inside the cabin or a remote. An electronic tailgate actuator consists of a locking mechanism, an actuator, and a switch to alert your vehicle’s computer when the rear liftgate is open. Since tailgate actuators are located in the rear lift gate, they’re typically damaged during rear-end collisions.

System

Car Body

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Tailgate Assist

The Tailgate Assist is a useful tool that prevents your tailgate from slamming down. In most vehicles, the tailgate is too heavy, causing it to slam down. This can damage the connector pieces, which can be expensive to replace. Tailgate assists come in single or double-piece systems. Some also come with handles, making it easier to open and close the tailgate when you’re hauling heavy equipment to your truck bed.

System

Accessories

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Tailgate Bar

The Tailgate Bar provides a place for the rear vinyl window of a Jeep soft top to mount onto. It’s made using black-finished steel and resists scratches and corrosion. The tailgate bar also has a rubber seal to keep rain, snow, and other debris from entering the Jeep’s cargo area. Tailgate bars are mounted onto the back of a Jeep, over the tailgate. Their design depends on the Jeep’s make and model.

System

DIY

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Tailgate Bar Retainer

The Tailgate Bar Retainer is an attachment point for tailgate bars and accessories that attach to the bar, such as soft tops. This part might be needed to install a soft top on your truck or replace a damaged, missing, or stolen retainer. Designed for mounting on the factory belt rail of the Jeep’s tub or a truck’s tailgate, tailgate bar retainers provide a tight seal for the soft top. Cargo nets, tonneau covers, soft tops, and similar accessories attach to the tailgate bar retainer.

System

Accessories

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Tailgate Cable

The Tailgate Cable is a durable wire that supports the tailgate when lowered. The cable helps keep the tailgate in place so that it doesn’t hit the bumper. It also keeps the tailgate level with the truck bed, making it easier to load and unload things from the truck. While most tailgate cables are made of durable steel, they can still wear over time. They can fray and start to rust after regular use.

System

Car Body

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Tailgate Hinge

A tailgate hinge lets the tailgate of a truck pivot, effectively allowing it to open and close. Unlike the rear liftgate found in SUVs, truck tailgates tend to drop downwards. Hence, they tend to be stepped on during the loading or unloading process. This is why tailgate hinges need to be heavy-duty. They meant to hold the truck tailgate’s weight as well as the weight of any potential people or cargo that might sit on top of the tailgate while it’s open.

System

Car Body

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Tailgate Latch

The tailgate latch is the metal hook that’s mounted on the sides of a truck’s tailgate. These metal hooks allow the tailgate to remain locked and fixed on its upright position when the tailgate isn’t opened. Some tailgate latches can come with cables that are attached to the tailgate’s edge. When the tailgate is opened, these cables hold the tailgate’s weight and keep it fixed at a 90-degree angle.

System

Car Body

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Tailgate Light Bar

The tailgate light bar is an accessory that serves as another set of rear lights that illuminates the truck’s back and alerts other drivers about your intentions on the road. This accessory might be needed to enhance a vehicle’s ability to show your intention to brake, turn, and reverse. The tailgate light bar is mounted on a truck’s tailgate. The brake lights, turn signals, and tail lights work together with the tailgate light bar to help keep you safe on the road.

System

Car Lights

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Tailgate Liner

The Tailgate Liner is a cover that protects the surface of the tailgate from scratches and other damage. It provides added protection for truck owners who want to use their tailgate as a workbench. Most tailgate liners are easy to install and come with the necessary mounting hardware. They’re usually made of heavy-duty, skid-resistant material that can withstand years of use. While their design can vary, they typically come with a ribbed surface for easier drainage and cleaning.

System

Accessories

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Tailgate Lock

The Tailgate Lock keeps your tailgate securely in place. Without a tailgate lock, it is shockingly fast and easy to remove the tailgate from a pickup truck. Tailgate locks also prevent unauthorised access to the rear storage compartment. They come in various types and materials suited to different tailgate designs. Tailgate locks can also come in kits that include the wires and bars you need to replace parts of the original tailgate opening mechanism.

System

DIY

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Tailgate Molding

The Tailgate Molding protects the tailgate’s upper portion from minor damage when you load and unload cargo. This part might be needed if the current molding appears excessively damaged or worn. Mounted on the tailgate, the tailgate molding also enhances your vehicle’s appearance. The tailgate relies on its tailgate molding to prevent dings, scratches, and other damage that’s frustrating to look at but too minor to require immediate repair.

System

Car Body

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Tailgate Panel Kit

The Tailgate Panel Kit is a repair kit that consists of replacement parts and hardware necessary to fix a damaged tailgate. While its exact contents can vary, the kit can help make repairing your tailgate much easier. Some tailgate panel kits are specifically designed for the passenger side, while others are used for the driver’s side. When purchasing one for yourself, be sure to double-check the contents of the kit to make sure it’s compatible with your vehicle.

System

Car Body

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Tailgate Protector

The Tailgate Protector is a truck accessory that fits over the top of the vehicle’s tailgate. It protects both the vehicle’s paint job and the underlying alloy in its tailgate. The tailgate protector reduces damage when the vehicle is hauling cargo, loading, and unloading. Tailgate protectors can come in ABS plastic, coated steel, aluminum, and stainless steel. They also have various color options and finishes depending on the manufacturer.

System

Car Body

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Tailgate Pull Down Motor

The Tailgate Pull Down Motor can come in two forms. The first is a strut that can electronically extend or retract, allowing the strut to lift or lower the tailgate based on inputs. The other works with an assembly that lifts the tailgate.

System

Electrical System

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Tailgate Release Button

The Tailgate Release Button is a switch typically located under the tailgate handle. It’s used to unlock the tailgate, and it works even when the vehicle is turned off. In some vehicles, the tailgate release button only works if you’re carrying the remote transmitter or if it’s within range. There are different types of tailgate release buttons, including a multifunction switch located in the central control panel or steering wheel.

System

Car Body

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Tailgate Rod

The Tailgate Rod is a metal part that links the handle to the latch on the truck’s tailgate. Also called a tailgate latch rod, the rod might be needed if the tailgate doesn’t open or close when using the tailgate handle. Tailgate rods are found between the tailgate latch and the tailgate handle. The tailgate assembly relies on the tailgate rod to work properly.

System

Car Body

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Tailgate Stop

As its name suggests, the Tailgate Stop is designed to stop the tailgate from hitting and damaging the vehicle. There are different types of tailgate stops, such as billet arms that limit tailgate movement by locking it into place or bumpers that prevent the tailgate from touching the truck bed. Billet arms are typically made of stainless steel sliding links and hardware, while bumpers are small rubber pieces that usually come in pairs.

System

Car Body

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Tailgate Weatherstrip Seal

The Tailgate Weatherstrip Seal is a piece of weatherstripping that fits onto a truck’s tailgate. It’s between the tailgate and the rest of the truck bed, preventing dirt, water, and other debris from getting between the components and damaging them. Tailgate weatherstrip seals often come with sturdy adhesive to stick more easily. Other seals might be corrugated a certain way to more easily cling to the installation area. The seal’s exact thickness and length will depend on the type of tailgate it fits around.

System

Accessories

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Tailgate Window Lift Motor

The tailgate window lift motor is a component found in vehicles that allows the tailgate window to lift. This feature allows vehicle owners to load cargo without lifting the rear tailgate, which is useful when loading cargo in tight spaces like garages. The window lift motor functions similarly to the power window motor found in your vehicle’s doors. The tailgate window lift motor also has a regulator, which turns the rotating motion into a pushing motion that opens the window.

System

Car Body

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Tailgate Wiring Harness

The Tailgate Wiring Harness is the electrical cable assembly that connects the tailgate to the vehicle’s wiring system. This part might be required to replace an old or damaged tailgate wiring harness that cannot carry a current. The tailgate wiring harness is inside the tailgate and transfers power to various components connected to it. The tailgate power window and tailgate lock are examples of the parts that rely on the tailgate wiring harness.

System

Electrical System

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Tee Fitting

The Tee Fitting is a type of pipe fitting with three openings. As its name suggests, it’s shaped like the letter “T,” allowing any liquid or gas flowing through to be split or redirected efficiently. Tee fittings can vary in size, color, and design, but they’re typically made of durable metal, such as steel or copper. High-quality tee fittings are specifically designed to be resistant to corrosion, heat, and chemical damage.

System

Cooling System

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Telescoping Mirror

The Telescoping Mirror is a mirror on a usually extendable handle. The handle is long and allows users to position the mirror in various places around a vehicle’s chassis and engine bay. This allows the user to see the vehicle’s components more easily. As a tool, the telescoping mirror occasionally comes with various mirror heads that can be swapped out depending on the user’s needs.

System

DIY

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TPMS Monitor

The TPMS Monitor is the display screen that shows the readings from the Tire Pressure Monitoring System (TPMS) sensor in real-time. This part might be needed if you need to constantly keep track of tire pressure and temperature, such as when towing a trailer. The TPMS monitor is usually mounted on the instrument panel. TPMS sensor readings are displayed on the TPMS monitor for easy access and accurate interpretation.

System

Wheels and Tires

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TPMS Receiver

The TPMS Receiver is an electric automotive component that helps monitor the air pressure in a vehicle’s tires. TPMS stands for tire pressure monitoring system. The receiver obtains information from the vehicle’s TPMS sensor and relays the pressure readings on the vehicle’s dashboard. The system ensures that the tires are functioning correctly at the proper pressure levels. When the system detects that one of the tires isn’t at the correct pressure level, the receiver can alert the driver of potential danger.

System

Wheels and Tires

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TPMS Sensor

The TPMS (tire pressure monitoring system) sensor is an integral part of the TPMS monitor system, which helps drivers monitor tire pressure.

The TPMS sensor transmits data to your vehicle’s computer once it detects that the vehicle’s speed is more than 20 mph. If it identifies a rapid change in inflation pressure, it will go on “alert mode” and send signals every second. The TPMS warning light will illuminate once this happens.

System

Wheels and Tires

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TPMS Sensor Mounting Band

The tire pressure monitoring system (TPMS) sensor mounting band is a part that attaches the TPMS sensor to the wheel rim. This part works as a direct replacement for a damaged mounting band. TPMS sensor mounting bands attach to the vehicle’s wheel rim, and many models can be adjusted to fit multiple rim diameters. The TPMS sensor needs the mounting band to keep it close to the tire, allowing the sensor to keep track of the tire pressure.

System

Wheels and Tires

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TPMS Sensor Service Kit

The TPMS Sensor Service Kit is a repair kit for your vehicle’s tire pressure monitoring system (TPMS) sensor. Most TPMS sensor service kits come with a new sensor, a valve stem retaining screw, a rubber seal, a valve stem, a washer, a nut, and a cap. You usually have to replace several parts when performing a tire service on TPMS-equipped wheels, which is why it’s more convenient to buy a service kit instead of getting each part individually.

System

Wheels and Tires

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TPMS Sensor Transmitter

The TPMS Sensor Transmitter is an electronic component that wirelessly transmits signals from the tire pressure monitoring system (TPMS) to the powertrain control module (PCM). It does this so the TPMS can alert the PCM if the tire pressure is outside normal parameters. The PCM then alerts the driver of any abnormality. The system helps drivers monitor their tire pressure, allowing them to avoid both decreased fuel efficiency and increased risk of tire blowouts.

System

Wheels and Tires

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TPMS Valve Stem

Tire pressure monitors are typically mounted on the tire itself. The TPMS valve stem is the component that sticks out from your wheels. It’s also the part where you insert an air hose to pump your tires. The valve stem has a mechanism that can wirelessly transmit information about your vehicle’s tire pressure to the tire pressure monitoring system. The TPMS valve stem also doubles as a normal valve stem, allowing you to inflate the tire through the valve. 

System

Wheels and Tires

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Trunk Handle

The Trunk Handle helps you open and close the trunk. Trunk handles are usually mounted behind the license plate frame. Most handles are made from stainless steel.  

System

Car Body

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Trunk Latch

The Trunk Latch secures the trunk lid to prevent it from opening. The trunk is opened using a key, remote, or interior button. The latch usually has a locking mechanism, a hook, and in some cases, an electronic actuator.

System

Car Body

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Trunk Light

The Trunk Light normally turns on when the trunk lid is open. In some vehicles, the trunk light automatically turns on when the interior lights are activated. A trunk that’s left open will usually trigger the trunk open warning light on the dashboard.

System

Car Lights

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Trunk Lining

A Trunk Lining or trunk liner is a custom-fit mat that protects a vehicle’s trunk or cargo area by keeping spills, dirt, and grease away from the interior. They often have a raised lip to contain spills within the liner.

System

Accessories

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Trunk Lock

The Trunk Lock helps drivers keep their trunks and/or tailgates locked. It lets people drive their vehicles without worrying about their cargo flying out of their rear end.

System

Car Body

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About The Author
Written By Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

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.

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