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AP Exhaust 641564 Catalytic Converter - Front Left
AP Exhaust Catalytic Converter for Buick LaCrosse
The AP Exhaust catalytic converter part number 641564 is designed specifically for Buick LaCrosse models, providing a direct-fit replacement that meets Federal and EPA standards. This catalytic converter ensures proper emission control and helps maintain your vehicle's environmental compliance.
Key Features of AP Exhaust Catalytic Converter 641564
- Direct-fit catalytic converter compatible with Buick LaCrosse
- Federal / EPA compliant design for emission control
- Ceramic substrate material for effective pollutant conversion
- Overall length of 13 inches for precise fitment
- Inlet type: 3 bolt welded connection with one inlet gasket included
- Outlet type: 2 bolt welded connection with one outlet gasket and hardware included
- Equipped with one O2 sensor port for accurate sensor placement
Detailed Product Description
This AP Exhaust catalytic converter (part number 641564) is engineered to replace the factory catalytic converter on Buick LaCrosse vehicles. Featuring a ceramic substrate, it efficiently converts harmful exhaust gases into less harmful emissions. The inlet connection uses a 3 bolt welded flange with one inlet gasket included, while the outlet connection features a 2 bolt welded flange with one outlet gasket and necessary hardware. The unit includes one O2 sensor port to accommodate the vehicle’s oxygen sensor, ensuring proper engine management and emission monitoring. With an overall length of 13 inches, this catalytic converter is designed for a precise fit and reliable performance.
Common Applications and Issues Addressed
- Replacement for a damaged or clogged catalytic converter on Buick LaCrosse
- Restores proper emission control to pass Federal and EPA inspections
- Resolves check engine light issues related to catalytic converter failure
- Improves exhaust flow and reduces harmful emissions
- Maintains vehicle compliance with environmental regulations
Installation Notes and Tips
When installing the AP Exhaust catalytic converter 641564, ensure the inlet and outlet gaskets are properly seated to prevent exhaust leaks. The 3 bolt welded inlet and 2 bolt welded outlet connections require matching hardware; note that inlet hardware is not included. Verify the O2 sensor port alignment for correct sensor installation. Professional installation is recommended to ensure proper fitment and function.
Quality Assurance and Warranty
AP Exhaust catalytic converters are manufactured to meet Federal and EPA standards for emissions control. This part number 641564 undergoes quality checks to ensure durability and performance. Warranty information is provided by AP Exhaust and should be confirmed at the time of purchase.
| Brand | AP Exhaust |
| Part Number | 641564 |
| Inlet Gasket Qty | 1 |
| Inlet Hardware | None |
| Inlet Type A | 3 bolt welded |
| O2 Sensor Ports | 1 |
| Outlet Gasket Qty | 1 |
| Outlet Hardware | Yes |
| Outlet Type A | 2 bolt welded |
| Overall Length (IN) | 13 |
| Substrate Material | Ceramic |
| Type | Federal / epa direct-fit |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2011 | Buick | LaCrosse | FWD | 3.6L | V6 | Front Left | Direct Fit; (10-11); 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. |
| 2011 | Buick | LaCrosse | 3.6L | V6 | Front Left | Direct Fit; 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. | |
| 2010 | Buick | LaCrosse | FWD | 3.6L | V6 | Front Left | Direct Fit; (10-11); 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. |
| 2010 | Buick | LaCrosse | 3.6L | V6 | Front Left | Direct Fit; 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.