How to Remove and Replace a Catalytic Converter on a 5.7L Engine on 2008 Dodge Ram 2500?

To replace the catalytic converter on a 5.7L engine, raise the vehicle and apply heat valve lubricant to the bolts. Disconnect the oxygen sensor, remove clamps and nuts, then take out the bolts securing the converter to the exhaust manifold, and finally, remove the catalytic converter assembly.

OEM 2008 Dodge Ram 2500 Catalytic Converter

Cat. Converter

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4 Catalytic Converters found

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2008 Dodge Ram 2500 Catalytic Converter, Center Part Number: 68035059AC
$2019.98 MSRP: $2925.00
You Save: $905.02 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter - Catalytic; Catalytic Converter, Center
- Position: Center
- Replaces: 68035059AB, 68035059AA, 52122196AA
- Item Weight: 27.30 Pounds
- Item Dimensions: 21.4 x 11.2 x 10.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 68035059AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2008 Dodge Ram 2500 Submodels:
- Laramie, SLT, ST, SXT | 6 Cyl 6.7 L DIESEL, 6.7L L6
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2008 Dodge Ram 2500 Catalytic Converter, Rear Part Number: 68035060AC
$2489.43 MSRP: $3610.00
You Save: $1120.57 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter - Diesel Particulate; Catalytic Converter, Rear
- Position: Rear
- Replaces: 68035060AA
- Item Weight: 36.30 Pounds
- Item Dimensions: 11.2 x 9.6 x 34.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 68035060AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Dodge Ram 2500 Submodels:
- Laramie, SLT, ST, SXT | 6 Cyl 6.7 L DIESEL, 6.7L L6
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2008 Dodge Ram 2500 Catalytic Converter Part Number: 52121210AB
Product Specifications
- Other Name: Converter - Catalytic; Exhaust Pipe; Converter & Pipe; Converter Catalytic
- Replaces: 52121210AA
- Item Weight: 52.00 Pounds
- Item Dimensions: 43.9 x 12.5 x 8.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 52121210AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Dodge Ram 2500 Submodels:
- Laramie, SLT, ST, Sport, TRX4 | 6 Cyl 5.9 L DIESEL
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2008 Dodge Ram 2500 Catalytic Converter Part Number: 52122253AC
Product Specifications
- Other Name: Converter - Exhaust; Exhaust Pipe; Converter & Pipe; Pipe And Converter Exhaust
- Replaces: 52122253AA, 52122253AB
- Item Weight: 31.50 Pounds
- Item Dimensions: 57.2 x 31.3 x 22.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 52122253AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Dodge Ram 2500 Submodels:
- Laramie, Power Wagon, SLT, ST, SXT | 8 Cyl 5.7 L GAS

2008 Dodge Ram 2500 Catalytic Converter Parts and Q&A

Q: How to Remove and Replace a Catalytic Converter on a 5.7L Engine on 2008 Dodge Ram 2500?
A: To replace the catalytic converter on a 5.7L engine, raise the vehicle and apply heat valve lubricant to the bolts. Disconnect the oxygen sensor, remove clamps and nuts, then take out the bolts securing the converter to the exhaust manifold, and finally, remove the catalytic converter assembly.