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AP Exhaust 644151 Catalytic Converter
AP Exhaust Catalytic Converter for Volkswagen Vehicles
The AP Exhaust 644151 catalytic converter is designed specifically for Volkswagen Beetle, Jetta, and Passat models. Engineered with durable stainless steel and a ceramic substrate, this federal/EPA direct-fit converter ensures compliance with emissions standards while maintaining reliable performance.
- Constructed from corrosion-resistant stainless steel body
- Includes one clamp and one inlet gasket for secure sealing
- Features a V-band flange inlet and 2.36" outside diameter slip fit outlet
- Equipped with one O2 sensor port for accurate emissions monitoring
- Overall length of 66 inches for precise fitment
- Ceramic substrate designed for effective catalytic conversion
- Federal/EPA direct-fit type for Volkswagen Beetle, Jetta, and Passat
Durable Construction and Precise Fitment
The AP Exhaust catalytic converter part number 644151 is built with a stainless steel body that resists rust and corrosion, extending the life of the exhaust component. Its ceramic substrate efficiently converts harmful exhaust gases into less harmful emissions, meeting federal and EPA regulations. The V-band flange inlet and 2.36" OD slip fit outlet provide a secure and leak-free connection to the vehicle's exhaust system. This converter includes one O2 sensor port to accommodate factory oxygen sensors, ensuring proper engine management and emissions control.
Compatible Volkswagen Models
This catalytic converter is compatible with Volkswagen Beetle, Jetta, and Passat models, making it a direct-fit replacement for these vehicles. The part number 644151 is designed to match OEM specifications, simplifying installation and maintaining factory performance standards.
Common Applications and Issues Addressed
- Replacement for clogged or damaged catalytic converters
- Restores proper emissions control to pass state inspections
- Resolves check engine light issues related to catalytic converter failure
- Improves exhaust flow and engine efficiency
- Ensures compliance with federal and EPA emissions regulations
Installation Notes and Tips
Installation requires removal of the existing catalytic converter and proper alignment of the V-band flange inlet and slip fit outlet. The included clamp and inlet gasket should be used to ensure a secure, leak-free connection. No additional inlet or outlet hardware is included, so verify compatibility with your vehicle’s exhaust system components before installation. Proper torque specifications should be followed to avoid exhaust leaks.
Quality Assurance and Warranty
AP Exhaust catalytic converters are manufactured to meet federal and EPA standards for emissions control. The stainless steel construction and ceramic substrate provide durability and long service life. Warranty information is available from the manufacturer and should be reviewed prior to purchase to understand coverage details.
| Brand | AP Exhaust |
| Part Number | 644151 |
| Body Material | Stainless steel |
| Clamp Qty | 1 |
| Inlet Gasket Qty | 1 |
| Inlet Hardware | None |
| Inlet Type A | V-band flange |
| O2 Sensor Ports | 1 |
| Outlet Gasket Qty | None |
| Outlet Hardware | None |
| Outlet Type A | 2.36" od slip fit |
| Overall Length (IN) | 66 |
| Substrate Material | Ceramic |
| Type | Federal / epa direct-fit |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Volkswagen | Jetta | 2.0L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2018 | Volkswagen | Jetta | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2017 | Volkswagen | Beetle | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2017 | Volkswagen | Jetta | 2.0L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2017 | Volkswagen | Jetta | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2017 | Volkswagen | Passat | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2016 | Volkswagen | Beetle | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2016 | Volkswagen | Jetta | 2.0L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2016 | Volkswagen | Jetta | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2016 | Volkswagen | Passat | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2015 | Volkswagen | Beetle | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2015 | Volkswagen | Jetta | 2.0L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2015 | Volkswagen | Jetta | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2015 | Volkswagen | Passat | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2014 | Volkswagen | Beetle | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2014 | Volkswagen | Jetta | 2.0L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2014 | Volkswagen | Jetta | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
| 2014 | Volkswagen | Passat | 1.8L | L4 | N/A | Direct Fit; SULEV Emissions; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.