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AP Exhaust 644021 Catalytic Converter - RearOE Quality 60-Day Returns
Part #: 644021

AP Exhaust 644021 Catalytic Converter - Rear

Rear
⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, RAV4
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AP Exhaust Catalytic Converter for Toyota RAV4

The AP Exhaust 644021 catalytic converter is designed specifically for Toyota RAV4 models, providing a direct-fit replacement that meets federal EPA standards. Constructed with durable stainless steel and a ceramic substrate, this converter ensures reliable performance and emissions compliance.

  • Body material: corrosion-resistant stainless steel
  • Federal/EPA direct-fit catalytic converter
  • Overall length: 24 inches for precise fitment
  • Inlet type: 2 bolt welded flange with included inlet gasket
  • Outlet type: 2.375 inch outside diameter pipe with outlet hardware included
  • Ceramic substrate for effective emissions control
  • Compatible with Toyota RAV4 exhaust systems

Durable Construction and Precise Fitment

This AP Exhaust catalytic converter (part number 644021) features a stainless steel body that resists rust and corrosion, extending the life of your vehicle’s exhaust system. The ceramic substrate inside efficiently reduces harmful emissions, helping your Toyota RAV4 meet environmental regulations. The 2 bolt welded flange inlet and 2.375 inch OD pipe outlet ensure a secure and exact fit, simplifying installation without the need for outlet gaskets.

Applications and Common Issues Addressed

  • Replacement for damaged or clogged catalytic converters on Toyota RAV4
  • Restores proper exhaust flow and reduces emissions
  • Helps resolve check engine light issues related to catalytic converter failure
  • Improves vehicle emissions compliance for federal and EPA standards
  • Addresses exhaust leaks caused by worn or broken converter components

Installation Notes and Tips

This catalytic converter is designed as a direct-fit replacement for Toyota RAV4 models, making installation straightforward. The included inlet gasket and outlet hardware facilitate a secure connection. Note that no inlet hardware is included, so existing mounting components should be inspected prior to installation. Proper torque on the 2 bolt welded flange is recommended to prevent exhaust leaks.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet federal EPA requirements for emissions control. The stainless steel construction and ceramic substrate are tested for durability and performance. While specific warranty details are not provided here, AP Exhaust products typically come with a limited warranty against defects in materials and workmanship.

BrandAP Exhaust
Part Number644021
Body MaterialStainless steel
Clamp Qty1
Inlet GasketYes
Inlet HardwareNone
Inlet Type A2 bolt welded flange
O2 Sensor PortsNone
Outlet GasketNot required
Outlet HardwareYes
Outlet Type A2.375" od pipe
Overall Length (IN)24
Substrate MaterialCeramic
TypeFederal / epa direct-fit
TypeFederal / epa direct-fit undercar

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012ToyotaRAV42.5LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2012ToyotaRAV42.5LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2011ToyotaRAV42.5LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2011ToyotaRAV42.5LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2010ToyotaRAV42.5LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2010ToyotaRAV42.5LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2009ToyotaRAV42.5LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2009ToyotaRAV42.5LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2008ToyotaRAV42.4LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2008ToyotaRAV42.4LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2007ToyotaRAV42.4LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2007ToyotaRAV42.4LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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.
2006ToyotaRAV42.4LL4N/ADirect Fit; (Use w/ 50020); 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.; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; U.S. BUILT
2006ToyotaRAV42.4LL4RearDirect Fit; Requires Welded Assembly 50020 to complete installation, OE is a complete welded assembly; 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:

17420-28710

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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