How to Service a Catalytic Converter on 2003 Dodge Neon?

To service the catalytic converter, cool the exhaust system and then remove the muffler and exhaust pipe. Disconnect the down stream oxygen sensor, remove the converter, and check for problems. Reinstall new flange gasket, tightening fasteners and reconnecting components, attention to alignment and do not over-tightening. Reinstall the oxygen sensor if removed.

OEM 2003 Dodge Neon Catalytic Converter

Cat. Converter

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5 Catalytic Converters found

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2003 Dodge Neon Front Pipe Part Number: 5278622AD
Product Specifications
- Other Name: Converter - Catalytic; Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter Catalytic
- Item Weight: 13.80 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5278622AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following 2003 Dodge Neon Submodels:
- R/T | 4 Cyl 2.0 L GAS
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2003 Dodge Neon Front Pipe Part Number: 5278126AJ
Product Specifications
- Other Name: Converter - Catalytic; Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter Catalytic
- Item Weight: 13.70 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5278126AJ
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following 2003 Dodge Neon Submodels:
- SE, SXT | 4 Cyl 2.0 L GAS
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2003 Dodge Neon Front Pipe Part Number: 5278941AD
Product Specifications
- Other Name: Converter - Catalytic; Catalytic Converter; Exhaust Pipe; Converter & Pipe
- Replaces: 5278941AB, 5278941AC
- Item Weight: 13.40 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5278941AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Neon Submodels:
- SRT-4 | 4 Cyl 2.4 L GAS
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2003 Dodge Neon Catalytic Converter Part Number: 4546942AJ
Product Specifications
- Other Name: Converter - Catalytic; Converter Catalytic
- Item Weight: 14.00 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4546942AJ
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following 2003 Dodge Neon Submodels:
- ACR, Base, ES, High Line, SE, SRT-4, SXT | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
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2003 Dodge Neon Catalytic Converter Part Number: 5278126AL
Product Specifications
- Other Name: Converter - Catalytic; Exhaust Pipe; Front Pipe; Converter & Pipe; Converter Catalytic
- Item Weight: 13.50 Pounds
- Item Dimensions: 34.7 x 13.1 x 7.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5278126AL
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Neon Submodels:
- R/T, SE, SXT | 4 Cyl 2.0 L GAS

2003 Dodge Neon Catalytic Converter Parts and Q&A

Q: How to Service a Catalytic Converter on 2003 Dodge Neon?
A: To service the catalytic converter, cool the exhaust system and then remove the muffler and exhaust pipe. Disconnect the down stream oxygen sensor, remove the converter, and check for problems. Reinstall new flange gasket, tightening fasteners and reconnecting components, attention to alignment and do not over-tightening. Reinstall the oxygen sensor if removed.