How to Replace a Catalytic Converter?

Because of a Federally-mandated extended warranty which covers emission-related components such as the catalytic converter, check with a dealer service department before replacing the converter at your own expense. A catalytic converter (or catalyst) is an emission control device in the exhaust system that reduces certain pollutants in the exhaust gas stream. There are two types of converters. An oxidation catalyst reduces hydrocarbons (HC) and carbon monoxide (CO). A reduction catalyst reduces oxides of nitrogen (NOx). A catalyst that can reduce all three pollutants is known as a "Three-Way Catalyst" (TWC). All models covered by this manual are equipped with TWCs. The test equipment for a catalytic converter (a loaded-mode dynamometer and a 5-gas analyzer) is expensive. If you suspect that the converter on your vehicle is malfunctioning, take it to a dealer or authorized emission inspection facility for diagnosis and repair. Whenever you raise the vehicle to service underbody components, inspect the converter for leaks, corrosion, dents, and other damage. Carefully inspect the welds and/or flange bolts and nuts that attach the front and rear ends of the converter to the exhaust system. If you note any damage, replace the converter. Although catalytic converters don't break too often, they can become clogged or even plugged up. The easiest way to check for a restricted converter is to use a vacuum gauge to diagnose the effect of a blocked exhaust on intake vacuum. Connect a vacuum gauge to an intake manifold vacuum source. Warm the engine to operating temperature, place the transaxle in Park (automatic models) or Neutral (manual models) and apply the parking brake. Note the vacuum reading at idle and jot it down. Quickly open the throttle to near its wide-open position and then quickly get off the throttle and allow it to close. Note the vacuum reading and jot it down. Do this test three more times, recording your measurement after each test. If your fourth reading is more than one in-Hg lower than the reading that you noted at idle, the exhaust system might be restricted (the catalytic converter could be plugged, OR an exhaust pipe or muffler could be restricted). Raise the vehicle and place it securely on jackstands. Spray a liberal amount of penetrant onto the threads of the exhaust pipe-to-exhaust manifold bolts, the clamp bolt that connects the two parts of the crossover pipe and the clamp bolt that connects the pipe behind the right catalyst to the muffler. Wait awhile for the penetrant to loosen things up. On models so equipped, unbolt and remove the skid plate and transmission crossmember, if necessary. While you're waiting for the penetrant to do its work, disconnect the electrical connectors for the upstream and downstream oxygen sensors and remove both oxygen sensors. Unscrew the upper exhaust pipe-to-exhaust manifold flange bolts. If they're still difficult to loosen, spray the threads with some more penetrant, wait awhile and try again. To loosen the clamp that secures the slip joint between the two sides of the crossover pipe between the two catalysts, back off the nut. If it's still difficult to loosen, spray the threads with some more penetrant, wait awhile and try again. If you're removing or replacing the right catalytic converter, you'll also have to loosen the clamp that secures the slip joint between the right exhaust pipe and the pre-muffler. Again, if it's still difficult to remove, spray the threads with more penetrant, then wait awhile and try again. Remove the catalytic converter assembly. Remove and discard the old flange gasket. Installation is the reverse of removal. Be sure to use a new flange gasket and new bolts at each exhaust manifold mounting flange. The manufacturer also recommends using new clamps at the slip joints. Coat the threads of the clamp and the exhaust manifold bolts with anti-seize compound to facilitate future removal. Tighten the fasteners securely.

Genuine Jeep Grand Cherokee Catalytic Converter

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118 Catalytic Converters found

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Jeep Grand Cherokee Converter-Exhaust
Part Number: 68037894AF
$1680.60 MSRP: $2465.00
You Save: $784.40 (32%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Replaces: 68037894AE, 68037894AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2011-2012 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68110125AB
$1366.50 MSRP: $2010.00
You Save: $643.50 (33%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold
- Replaced by: 68110125AE
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2013 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Exhaust Converter And Pipe To Manifold
Part Number: 68303469AB
$1366.50 MSRP: $2010.00
You Save: $643.50 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust
- Replaced by: 68303469AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2016-2017 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Catalytic Converter Selective Reduction
Part Number: 68243268AA
$1088.34 MSRP: $1590.00
You Save: $501.66 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Catalytic
- Replaced by: 68329874AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2014-2015 Jeep Grand Cherokee | Limited 4WD, Overland 4WD, Overland AWD, Summit AWD | 6 Cyl 3.0L Diesel
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68319267AB
$777.26 MSRP: $1410.00
You Save: $632.74 (45%)
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Position: Driver Side
- Replaces: 68319267AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2021 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee CONVERTOR-Exhaust
Part Number: 68036556AF
$1475.59 MSRP: $2675.00
You Save: $1199.41 (45%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold
- Replaced by: 68036556AG
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2012 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee CONVERTOR-Exhaust
Part Number: 68036556AE
$1475.59 MSRP: $2675.00
You Save: $1199.41 (45%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold
- Replaced by: 68036556AG
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2011 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Exhaust Converter And Pipe To Manifold
Part Number: 68319267AA
$777.26 MSRP: $1410.00
You Save: $632.74 (45%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust
- Replaced by: 68319267AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2020 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Front Catalytic Converter
Part Number: 68306092AA
$1033.62 MSRP: $1505.00
You Save: $471.38 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Front; Catalytic Converter, Converter & Pipe
- Position: Front
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2021 Jeep Grand Cherokee | Limited AWD, Limited RWD, Overland AWD, Overland RWD, SRT AWD, Summit AWD, Summit RWD, Trackhawk AWD, Trailhawk AWD | 8 Cyl 6.2L, 8 Cyl 6.4L
View related parts
Jeep Grand Cherokee Exhaust Converter And Pipe To Manifold
Part Number: 68110125AE
$1366.50 MSRP: $2010.00
You Save: $643.50 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Replaces: 68110125AC, 68110125AD, 68110125AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2013-2017 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Laredo AWD, Laredo RWD, Limited 2WD, Limited 4WD, Limited AWD, Limited RWD, Overland 2WD, Overland 4WD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Front Catalytic Converter
Part Number: 68307459AA
$2438.70 MSRP: $3575.00
You Save: $1136.30 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Front; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2021 Jeep Grand Cherokee | Limited AWD, Limited RWD, Overland AWD, Overland RWD, SRT AWD, Summit AWD, Summit RWD, Trackhawk AWD, Trailhawk AWD | 8 Cyl 6.2L, 8 Cyl 6.4L
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68110124AE
$1366.50 MSRP: $2010.00
You Save: $643.50 (33%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold; Catalytic Converter, Converter & Pipe
- Position: Driver Side
- Replaces: 68110124AB, 68110124AC, 68110124AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2013-2015 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Laredo AWD, Laredo RWD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD, Overland AWD, Overland RWD, Summit AWD, Summit RWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68410803AC
$864.90 MSRP: $1260.00
You Save: $395.10 (32%)
ADD TO CART
Product Specifications
- Other Name: Catalytic Converter, Converter & Pipe
- Position: Driver Side
- Replaces: 68410803AA, 68410803AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2020-2022 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.6 L FLEX, 6 Cyl 3.6L, 8 Cyl 5.7 L GAS
View related parts
Jeep Grand Cherokee Exhaust Catalytic Converter
Part Number: 68329872AB
$2244.30 MSRP: $3280.00
You Save: $1035.70 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust; Front Pipe
- Replaces: 68329872AA, 68260537AA, 68265067AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2020 Jeep Grand Cherokee | Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.0L Diesel
View related parts
Jeep Grand Cherokee Converter-Catalytic
Part Number: 68417519AB
$1680.60 MSRP: $2445.00
You Save: $764.40 (32%)
ADD TO CART
Product Specifications
- Replaces: 68243370AA, 68417519AA, 68243370AB, 68243370AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2021 Jeep Grand Cherokee | Limited AWD, Overland AWD, Summit AWD, Trailhawk AWD
- 2014-2017 Jeep Grand Cherokee | Limited 2WD, Limited 4WD, Limited AWD, Limited RWD, Overland 2WD, Overland 4WD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.0L Diesel
View related parts
Jeep Grand Cherokee Exhaust Converter
Part Number: 68410802AB
$848.94 MSRP: $1240.00
You Save: $391.06 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Replaces: 68410802AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2022 Jeep Grand Cherokee | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.6 L FLEX, 8 Cyl 5.7 L GAS
- 2020 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68169826AB
$1275.30 MSRP: $1875.00
You Save: $599.70 (32%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust
- Replaced by: 68414796AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2014 Jeep Grand Cherokee | Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD, Summit AWD, Summit RWD | 8 Cyl 5.7L
View related parts
Jeep Grand Cherokee Exhaust Converter And Pipe To Manifold
Part Number: 68319266AA
$981.18 MSRP: $1440.00
You Save: $458.82 (32%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2020 Jeep Grand Cherokee | Laredo AWD, Laredo RWD, Limited AWD, Limited RWD, Overland AWD, Overland RWD, Summit AWD, Summit RWD, Trailhawk AWD | 6 Cyl 3.6L
View related parts
Jeep Grand Cherokee Exhaust Catalytic Converter
Part Number: 68436614AC
$879.72 MSRP: $1295.00
You Save: $415.28 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter-Exhaust; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2020-2021 Jeep Grand Cherokee | Limited AWD, Overland AWD, Summit AWD, Trailhawk AWD | 8 Cyl 5.7L
View related parts
Jeep Grand Cherokee Converter-Exhaust
Part Number: 68110125AC
$1366.50 MSRP: $2010.00
You Save: $643.50 (33%)
ADD TO CART
Product Specifications
- Other Name: Pipe And Converter Exhaust To Manifold
- Replaced by: 68110125AE
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2014 Jeep Grand Cherokee | Laredo 2WD, Laredo 4WD, Limited 2WD, Limited 4WD, Overland 2WD, Overland 4WD, Summit AWD, Summit RWD | 6 Cyl 3.6L

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1-20 of 118 Results

Jeep Grand Cherokee Catalytic Converter Parts Questions & Experts Answers

Converter-Exhaust
68037894AF
Q: How to Replace a Catalytic Converter?
A: Because of a Federally-mandated extended warranty which covers emission-related components such as the catalytic converter, check with a dealer service department before replacing the converter at your own expense. A catalytic converter (or catalyst) is an emission control device in the exhaust system that reduces certain pollutants in the exhaust gas stream. There are two types of converters. An oxidation catalyst reduces hydrocarbons (HC) and carbon monoxide (CO). A reduction catalyst reduces oxides of nitrogen (NOx). A catalyst that can reduce all three pollutants is known as a "Three-Way Catalyst" (TWC). All models covered by this manual are equipped with TWCs. The test equipment for a catalytic converter (a loaded-mode dynamometer and a 5-gas analyzer) is expensive. If you suspect that the converter on your vehicle is malfunctioning, take it to a dealer or authorized emission inspection facility for diagnosis and repair. Whenever you raise the vehicle to service underbody components, inspect the converter for leaks, corrosion, dents, and other damage. Carefully inspect the welds and/or flange bolts and nuts that attach the front and rear ends of the converter to the exhaust system. If you note any damage, replace the converter. Although catalytic converters don't break too often, they can become clogged or even plugged up. The easiest way to check for a restricted converter is to use a vacuum gauge to diagnose the effect of a blocked exhaust on intake vacuum. Connect a vacuum gauge to an intake manifold vacuum source. Warm the engine to operating temperature, place the transaxle in Park (automatic models) or Neutral (manual models) and apply the parking brake. Note the vacuum reading at idle and jot it down. Quickly open the throttle to near its wide-open position and then quickly get off the throttle and allow it to close. Note the vacuum reading and jot it down. Do this test three more times, recording your measurement after each test. If your fourth reading is more than one in-Hg lower than the reading that you noted at idle, the exhaust system might be restricted (the catalytic converter could be plugged, OR an exhaust pipe or muffler could be restricted). Raise the vehicle and place it securely on jackstands. Spray a liberal amount of penetrant onto the threads of the exhaust pipe-to-exhaust manifold bolts, the clamp bolt that connects the two parts of the crossover pipe and the clamp bolt that connects the pipe behind the right catalyst to the muffler. Wait awhile for the penetrant to loosen things up. On models so equipped, unbolt and remove the skid plate and transmission crossmember, if necessary. While you're waiting for the penetrant to do its work, disconnect the electrical connectors for the upstream and downstream oxygen sensors and remove both oxygen sensors. Unscrew the upper exhaust pipe-to-exhaust manifold flange bolts. If they're still difficult to loosen, spray the threads with some more penetrant, wait awhile and try again. To loosen the clamp that secures the slip joint between the two sides of the crossover pipe between the two catalysts, back off the nut. If it's still difficult to loosen, spray the threads with some more penetrant, wait awhile and try again. If you're removing or replacing the right catalytic converter, you'll also have to loosen the clamp that secures the slip joint between the right exhaust pipe and the pre-muffler. Again, if it's still difficult to remove, spray the threads with more penetrant, then wait awhile and try again. Remove the catalytic converter assembly. Remove and discard the old flange gasket. Installation is the reverse of removal. Be sure to use a new flange gasket and new bolts at each exhaust manifold mounting flange. The manufacturer also recommends using new clamps at the slip joints. Coat the threads of the clamp and the exhaust manifold bolts with anti-seize compound to facilitate future removal. Tighten the fasteners securely.