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Jeep Wrangler Catalytic Converters

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Front Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: JJ960304
Vehicle Info Required to Guarantee Fit
$314.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 26 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 19069, 20367, 53461, 1030Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: REPJ960313
Vehicle Info Required to Guarantee Fit
$321.56
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/63005NNGasket Included : Without GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 20379Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: REPJ960304
Vehicle Info Required to Guarantee Fit
$318.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 26 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 20367Series : Direct Replacement SeriesTube Material : Aluminized Steel
Passenger Side Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: EJ96030006
Vehicle Info Required to Guarantee Fit
$255.23
Product Details
Location : Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 28 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 68085119AH, 68085148AHInterchange Part Number : 641511, 0792008, 68085119AH, 68085148AHSeries : Direct Replacement SeriesTube Material : Stainless Steel
Driver Side Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: EJ96030005
Vehicle Info Required to Guarantee Fit
$255.89
Product Details
Location : Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 28 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 68085148AH, 68085119AHInterchange Part Number : 641512, 0793323, 68085148AH, 68085119AHSeries : Direct Replacement SeriesTube Material : Stainless Steel
Driver and Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: SET-EJ96030005
Vehicle Info Required to Guarantee Fit
$392.99
Product Details
Location : Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 28 in. overall lengthComponents : (2) Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 68085119AH, 68085148AHInterchange Part Number : 641511, 0792008, 68085119AH, 68085148AH, 641512, 0793323Series : Direct Replacement SeriesTube Material : Stainless Steel
Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: EJ96030001
Vehicle Info Required to Guarantee Fit
$226.99
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : 2 Sensor PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 10161Series : Direct Replacement SeriesTube Material : Stainless Steel
Front Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: REPJ960306
Vehicle Info Required to Guarantee Fit
$344.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 41 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430, N/TB6000/501-405Gasket Included : Without GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 19308Series : Direct Replacement SeriesTube Material : Aluminized Steel
19539 Rear Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19539
Vehicle Info Required to Guarantee Fit
$259.99
Product Details
Location : RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 23 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
23218 Center Standard Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV23218
Vehicle Info Required to Guarantee Fit
$127.99
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 23.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Standard SeriesTube Material : Aluminized Steel
447188 Front California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M66447188
Vehicle Info Required to Guarantee Fit
$1,064.00
Product Details
Location : FrontEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 26.25 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : California SeriesTube Material : Stainless Steel
99205HM Heavy Metal Series Semi-Universal (Welding Required) Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6699205HM
Vehicle Info Required to Guarantee Fit
$178.00
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Rear, Front, Driver Side Or Rear, Passenger Side, Rear, Passenger Side, Front, Driver Or Passenger Side, Driver Side, Rear, Driver Or Passenger Side, Front, Driver Or Passenger Side, Front Or Rear, Front, Driver Side Or Rear, Driver Or Passenger Side, Front, Passenger Side, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 2.25 in. Inlet/Outlet; 13 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Lifetime Magnaflow Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : Heavy Metal SeriesTube Material : Stainless Steel
99006HM No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6699006HM
Vehicle Info Required to Guarantee Fit
$222.00
Product Details
Location : Rear, Driver Or Passenger Side, Rear, Frontward Or Rearward, RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 16 in. in length with 2.5 in. inlet and outlet diameter; 16 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : HM Grade SeriesTube Material : Stainless Steel
51206 No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6651206
Vehicle Info Required to Guarantee Fit
$194.00
Product Details
Location : Center Or Rear Rearward, Front Or Rear, Driver Or Passenger Side, Front Or Rear, Passenger Side, Front, Passenger Side Or Rear, Driver Or Passenger Side, Rear, Rear, Passenger Side, Front, Driver Or Passenger Side, Rear, Rearward, Rear, Driver Or Passenger Side, Center, Rear, Driver Or Passenger Side, Front, Driver Or Passenger Side, Front Or Rear, Front, Passenger Side, Passenger Side, Front Or Rear, Driver Side, Rear, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 13.75 in. L x 5 in. W x 4.75 in. HRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : OEM Grade SeriesTube Material : Stainless Steel
KIT-083023-143 Front Catalytic Converter Kit, CARB and Federal EPA Standards, 50-state Legal, 6 Cyl., 4.0L Engine, Direct Fit, includes Oxygen Sensor
Part Number: KIT-083023-143
Vehicle Info Required to Guarantee Fit
$1,063.99
Product Details
Location : FrontEmissions : CARB and Federal EPA Standards, 50-state LegalComponents : (1) Catalytic Converter and (1) Oxygen SensorType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : KitEO Number : D-193-103Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 2344209, 15510Promotions : Magnaflow Catalytic Converter SaleTube Material : Stainless Steel
Page 1 of 15 | Showing 1 - 15 of 213 results

Product Questions & Answers

Q:Will this fit a 2002 Ram 1500, RWD, that is not a SLT or ST?  V8 4.7L Show Less
Ted T.
A:BEST ANSWERHi Ted, I'm glad to help you out. Yes. This item fits the RWD (rear-wheel drive) 2002 Dodge Ram 1500 with a 4.7 liter engine. Take advantage of our 30-day post-purchase Price Match guarantee. Click this link to order this part: https://www.carparts.com/catalytic-converter/magnaflow/m6699006hm?can=CPAP3648 I hope this helps. Happy shopping. Show less
Aldrin P.
 
4 Questions, 1 AnswerView all Q&As >

Customer Guides

Common Issues of a Jeep Wrangler Catalytic Converter

First things first: Just like other catalytic converters out there, a Jeep Wrangler catalytic converter isn't repairable. When you're having problems with it, the only solution would be to get a replacement. With that said, detailed below are the common issues that you may encounter with it.

Clogging

This is the most common problem that you can encounter with your Jeep Wrangler catalytic converter. Your converter may be clogged because the catalyst materials inside it melted or has been contaminated with silicon. Apart from those, there are numerous possible explanations as to why your catalytic converter is clogged, most of which are related to the fuel system.

There are several ways to confirm catalytic converter clogging. First, you can opt to remove the oxygen sensors in your Jeep's exhaust. You see, clogging deprives your vehicle of oxygen. So if your Jeep's performance noticeably dips without the sensors, then your catalytic converter is most definitely clogged. Another way to confirm clogging is by listening for a whistling sound when your accelerator is applied. The whistling is a result of restricted exhaust flow, thus clogging is definitely present if such a sound can be heard. This sound will only grow louder as you drive at higher speeds. A decrease in fuel economy is another telltale sign of clogging. Clogged catalytic converters use up more fuel than normal-you can expect your fuel gauge to drop faster than usual when this is the case. Lastly, your Jeep's engine will generate backpressure because of clogging. That pretty much means that your vehicle won't be running smoothly.

Once you've confirmed the clogging, you better be ready to fork out some cash for a new Jeep Wrangler catalytic converter.

Diminished Efficiency

If contaminants don't cause your Jeep Wrangler catalytic converter to be clogged, then they can at least lower the efficiency of your converter. Aside from contaminants, an improper air-fuel mixture due to a faulty oxygen sensor can also affect your converter's efficiency. This issue can at least be fixed by replacing the problematic sensor.

The diminished efficiency of your Jeep Wrangler catalytic converter can be confirmed via an emissions test.

Your Jeep Wrangler catalytic converter isn't the demanding type. You don't necessarily have to keep your converter shiny or whatnot in order to keep it functioning properly. However, you'll want to put a bit of time and effort in taking care of other automotive parts that can affect your converter's function. Detailed below are some of those components as well as additional tips.


Regularly clean your oxygen sensor.

Improper fuel-air mixture can significantly affect the efficiency of your Jeep Wrangler catalytic converter. And there's only one component to blame when that happens-your oxygen sensor. If it isn't in good shape, inaccurate information will be sent to your fuel system, which consequently leads to the incorrect fuel-air ratio. Cleaning your oxygen sensor regularly should prevent most catalytic converter efficiency issues. But if the oxygen sensor is already rusty, you'll have no choice but to get a replacement for it.


Replace any faulty spark plugs.

Your Jeep Wrangler catalytic converter surely wouldn't appreciate a faulty spark plug. It's because a bad spark plug can cause raw fuel to overheat the converter. Overheating should never be underestimated as it can cause total catalytic converter failure. To avoid this major headache, clean your spark plugs from time to time. If they're no longer functioning properly, you'll be left with no alternative but to get new ones. Faulty spark plugs can cause damage to other automotive components other than the catalytic converter (your engine, for instance), thus it's very important to replace them as soon you can.


Drive safely.

Since your Jeep Wrangler catalytic converter is located in a very vulnerable position, driving safely will most definitely go a long way in preserving its good condition. Road bumps and other debris can easily damage your converter if you drive in a careless manner. Yes, it's encased in a hard-wearing shell, but the shell can only take so much punishment before giving out.


Be especially careful when driving with an overheated Jeep Wrangler catalytic converter since it can crack when exposed to ice or snow. It's best to avoid driving in such terrain if you know that your converter has overheating issues.

Even if the vehicle has already had multiple owners, is the warranty for a Jeep Wrangler catalytic converter replacement still valid and covered?

A warranty that has a free Jeep Wrangler catalytic converter replacement should still be valid regardless if the vehicle is owned by the original buyer or not. As long as the Wrangler is still in its warranty period--usually an 8-year or 80,000-mile period--it should be honored.

 

How much would a Jeep Wrangler catalytic converter repair and replacement cost?

If the job is done by an expert mechanic, this could cost almost $300 for both parts and labor. It's best to save some money on labor and study the procedure for a DIY job that will cost around $200 for the replacement part only.

 

Some laws aren't too strict with cars not having a catalytic converter. What are some of the effects of removing the Jeep Wrangler catalytic converter?

A Jeep Wrangler without a catalytic converter will be noticeable because of the very unpleasant smell coming out of the pipes. If there are any benefits to this, some owners would say that the sound the Jeep Wrangler gives is rougher without it. Also, another tiny bonus would be one device less of the Jeep to worry about. However, the costs greatly outweigh the benefits especially when the biggest consequence would be an increase in exhaust emissions that hurt the environment.

 

What are some of the symptoms of a Jeep Wrangler catalytic converter going bad?

One of the first things that can be noticed is an unusual smell from the exhaust. An erratic shaking or rattling noise from the underside of the Jeep can be heard. There may also be significant power loss every time the accelerator is pressed. By this time, the Jeep Wrangler catalytic converter might have clogged up the system. When doing a repair, check the rest of the exhaust for any clogs, cracks, and other defects caused by the bad catalytic converter. It's best to perform the replacement along with a comprehensive exhaust repair.

Helpful Automotive Resources

P0430 Code: Catalyst System Efficiency Below Threshold  (Bank 2)
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)A failing catalytic converter breaks down less pollutants in the exhaust, resulting in lower oxygen (O2) levels overall. The downstream oxygen sensor detects the change and informs the vehicle’s computer. In turn, the computer activates the check engine light and logs the appropriate OBD-II trouble code for diagnosis by a
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3When there are only 3 O2 sensors it’s typically because there’s only one catalyst being monitored, and “Bank 1” is the default designation when there’s only one sensor in a category. Diagram showing 3 oxygen sensors | Image Source: Richard McCuistian
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)To learn why O2 sensors need to be heated, you may read our explanation here.