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AP Exhaust 641244 Catalytic Converter with Integrated Exhaust Manifold - Front Left or Left
AP Exhaust Catalytic Converter with Integrated Exhaust Manifold Overview
The AP Exhaust 641244 catalytic converter with integrated exhaust manifold is designed specifically for Nissan Frontier and Xterra models. Engineered to meet Federal EPA standards, this direct-fit manifold ensures reliable emissions control and efficient exhaust flow.
- Constructed from durable stainless steel body material for corrosion resistance
- Features a ceramic substrate for effective catalytic conversion
- Includes one air tube and one O2 sensor port for precise monitoring
- Inlet type: 6 bolt welded flange; outlet type: 3 bolt welded flange with included gasket and hardware
- Overall length of 20.5 inches for exact fitment
Detailed Product Description
The AP Exhaust catalytic converter 641244 integrates the exhaust manifold and catalytic converter into a single unit, simplifying installation and improving exhaust efficiency. Its stainless steel construction provides long-lasting durability against heat and corrosion, while the ceramic substrate effectively reduces harmful emissions. The unit is designed with a 6 bolt welded flange inlet and a 3 bolt welded flange outlet, both equipped with gaskets and hardware at the outlet to ensure a secure and leak-free connection. The single air tube and O2 sensor port allow for accurate exhaust gas monitoring, maintaining optimal engine performance and compliance with emissions regulations.
Compatible Nissan Models and Common Applications
- Replacement catalytic converter for Nissan Frontier models requiring a direct-fit manifold
- Compatible with Nissan Xterra vehicles needing a Federal EPA compliant catalytic converter
- Addresses issues such as exhaust leaks, failed emissions tests, and reduced engine efficiency
- Suitable for vehicles experiencing check engine light codes related to catalytic converter or manifold failure
Installation Notes and Tips
Installation of the AP Exhaust 641244 catalytic converter requires removal of the existing manifold and catalytic converter assembly. Ensure all mounting surfaces are clean and free of debris before installation. The included outlet gasket and hardware facilitate a proper seal at the exhaust outlet flange. Verify O2 sensor port alignment for sensor installation. Professional installation is recommended to maintain emissions compliance and proper exhaust system function.
Quality Assurance and Warranty
AP Exhaust products are manufactured to meet Federal EPA standards for emissions control. The 641244 catalytic converter with integrated exhaust manifold is built with high-quality stainless steel and ceramic substrate materials to ensure durability and performance. Warranty information is available from AP Exhaust and should be confirmed at the time of purchase.
| Brand | AP Exhaust |
| Part Number | 641244 |
| Air Tube Qty | 1 |
| Body Material | Stainless steel |
| Inlet Gasket | None |
| Inlet Hardware | None |
| Inlet Type A | 6 bolt welded flange |
| O2 Sensor Ports | 1 |
| Outlet Gasket | Yes |
| Outlet Hardware | Yes |
| Outlet Type A | 3 bolt welded flange |
| Overall Length (IN) | 20.5 |
| Substrate Material | Ceramic |
| Type | Federal / epa direct-fit manifold |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Liters | Cylinders | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | Crew Cab Pickup | 3.3L | V6 | 131.1" | Left | Direct Fit; (Naturally Aspirated, Reuse OE Nut Adapter in Manifold Or Use 4963); 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.; Long Bed | |
| 2004 | Nissan | Frontier | 3.3L | V6 | Left | Direct Fit; Reuse OE nut adapter in manifold if needed or use 4963, Manifold Unit; 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. | |||
| 2004 | Nissan | Xterra | 3.3L | V6 | Front Left | Direct Fit; (Naturally Aspirated); 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.; Reuse OE Nut Adapter in Manifold if Needed | |||
| 2004 | Nissan | Xterra | 3.3L | V6 | Left | Direct Fit; Resuse OE Nut Adapter in Manifold if Needed, Manifold Unit; 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. | |||
| 2003 | Nissan | Frontier | Crew Cab Pickup | 3.3L | V6 | 131.1" | Left | Direct Fit; (Naturally Aspirated, Reuse OE Nut Adapter in Manifold Or Use 4963); 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.; Long Bed | |
| 2003 | Nissan | Frontier | 3.3L | V6 | Left | Direct Fit; Reuse OE nut adapter in manifold if needed or use 4963, Manifold Unit; 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. | |||
| 2003 | Nissan | Xterra | 3.3L | V6 | Front Left | Direct Fit; (Naturally Aspirated); 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.; Reuse OE Nut Adapter in Manifold if Needed | |||
| 2003 | Nissan | Xterra | 3.3L | V6 | Left | Direct Fit; Resuse OE Nut Adapter in Manifold if Needed, Manifold Unit; 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. | |||
| 2002 | Nissan | Frontier | 4WD | 3.3L | V6 | 116.1" | Left | Direct Fit; (Reuse OE Nut Adapter in Manifold Or Use 4963); 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.; Reuse OE Nut Adapter in Manifold if Needed | |
| 2002 | Nissan | Frontier | RWD | 3.3L | V6 | 116.1" | Left | Direct Fit; (Reuse OE Nut Adapter in Manifold Or Use 4963); 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.; Reuse OE Nut Adapter in Manifold if Needed; Desert Runner | |
| 2002 | Nissan | Frontier | 3.3L | V6 | Left | Direct Fit; Reuse OE nut adapter in manifold if needed or use 4963, Manifold Unit; 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. | |||
| 2002 | Nissan | Xterra | 3.3L | V6 | N/A | Direct Fit; (2002); 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.; Reuse OE Nut Adapter in Manifold if Needed | |||
| 2002 | Nissan | Xterra | 3.3L | V6 | Left | Direct Fit; Resuse OE Nut Adapter in Manifold if Needed, Manifold Unit; 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.