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AP Exhaust 644013 Catalytic Converter - Front
AP Exhaust Catalytic Converter for Chevrolet Malibu and Pontiac G6
The AP Exhaust 644013 catalytic converter is designed as a direct-fit replacement for Chevrolet Malibu and Pontiac G6 models. Constructed with durable stainless steel and a ceramic substrate, this federal/EPA compliant converter ensures reliable emissions control and long-lasting performance.
- Body material: corrosion-resistant stainless steel
- Federal/EPA direct-fit catalytic converter
- Includes inlet and outlet gaskets for proper sealing
- One O2 sensor port for accurate emissions monitoring
- Inlet: 3 bolt welded flange; Outlet: 2 bolt welded flange
- Overall length of 18.25 inches for precise fitment
- Ceramic substrate for effective catalytic conversion
Durable Construction and Precise Fitment
This AP Exhaust catalytic converter (part number 644013) features a stainless steel body that resists rust and corrosion, extending the life of the exhaust system. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions, meeting federal and EPA standards. The converter includes one O2 sensor port to maintain proper engine management and emissions control. Its inlet and outlet flanges are welded with 3 bolt and 2 bolt configurations respectively, ensuring a secure and leak-free connection. The included inlet and outlet gaskets help maintain a tight seal during installation.
Compatible Vehicles and Applications
This catalytic converter is compatible with the following vehicles:
- Chevrolet Malibu (specific model years may vary, verify fitment)
- Pontiac G6 (specific model years may vary, verify fitment)
It is designed to replace the factory catalytic converter directly, making it suitable for emissions system repairs or upgrades on these models.
Common Issues Addressed by This Catalytic Converter
- Failed or clogged factory catalytic converter causing poor emissions
- Check engine light triggered by O2 sensor or emissions faults
- Reduced engine performance due to exhaust restrictions
- Failed emissions tests related to catalytic converter efficiency
- Excessive exhaust noise from damaged converter components
Installation Notes and Tips
Installation requires proper alignment of the 3 bolt inlet and 2 bolt outlet flanges. Ensure the included inlet and outlet gaskets are positioned correctly to prevent exhaust leaks. The single O2 sensor port must be matched with the vehicle’s sensor location. No inlet hardware is included, so reusing existing bolts or sourcing new hardware may be necessary. Professional installation is recommended to maintain emissions compliance and system integrity.
Quality Assurance and Warranty
The AP Exhaust 644013 catalytic converter is manufactured to meet federal and EPA emissions standards. Its stainless steel construction and ceramic substrate provide durability and consistent performance. Warranty details should be confirmed with the manufacturer or distributor, as coverage may vary.
| Brand | AP Exhaust |
| Part Number | 644013 |
| Body Material | Stainless steel |
| Inlet Gasket | Yes |
| Inlet Hardware | None |
| Inlet Type A | 3 bolt welded flange |
| O2 Sensor Ports | 1 |
| Outlet Gasket | Yes |
| Outlet Hardware | None |
| Outlet Hardware | Yes |
| Outlet Type A | 2 bolt welded flange |
| Overall Length (IN) | 18.25 |
| Substrate Material | Ceramic |
| Type | Federal / epa direct-fit |
This part fits 29 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2012 | Chevrolet | Malibu | LT | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | LTZ | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | LTZ | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | LS | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | LS | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | LT | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2012 | Chevrolet | Malibu | 2.4L | L4 | Front | 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. | ||
| 2011 | Chevrolet | Malibu | LS | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | LT | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | LS | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | LT | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | LTZ | 2.4L | L4 | FLEX | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | LTZ | 2.4L | L4 | GAS | Front | Direct Fit; (11-12); 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.; (Exc. Hybrid) |
| 2011 | Chevrolet | Malibu | 2.4L | L4 | Front | 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 | Chevrolet | Malibu | LT | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2010 | Chevrolet | Malibu | LTZ | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2010 | Chevrolet | Malibu | LTZ | 2.4L | L4 | FLEX | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2010 | Chevrolet | Malibu | LT | 2.4L | L4 | FLEX | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2010 | Chevrolet | Malibu | 2.4L | L4 | Front | 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 | Pontiac | G6 | 2.4L | L4 | Front | Direct Fit; (09-10, w/ 6 Speeds); 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 | Pontiac | G6 | 2.4L | L4 | Front | 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. | ||
| 2009 | Chevrolet | Malibu | LT | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2009 | Chevrolet | Malibu | LTZ | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2009 | Chevrolet | Malibu | 2.4L | L4 | Front | 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. | ||
| 2009 | Pontiac | G6 | 2.4L | L4 | Front | Direct Fit; (09-10, w/ 6 Speeds); 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. | ||
| 2009 | Pontiac | G6 | 2.4L | L4 | Front | 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. | ||
| 2008 | Chevrolet | Malibu | LT | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2008 | Chevrolet | Malibu | LTZ | 2.4L | L4 | GAS | Front | Direct Fit; (08-10 w/ 6 Speeds); 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.; (Exc. Hybrid) |
| 2008 | Chevrolet | Malibu | 2.4L | L4 | Front | 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.