HomeExhaust > Catalytic ConverterAP Exhaust 641238 Catalytic Converter with Integrated Exhaust Manifold - Front or Front Left
Part #: 641238

AP Exhaust 641238 Catalytic Converter with Integrated Exhaust Manifold - Front or Front Left

Front and Front Left
⚙️ 43 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, Highlander, RX330, RX400h, and Sienna
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Overview of AP Exhaust Catalytic Converter 641238

The AP Exhaust catalytic converter with integrated exhaust manifold (part number 641238) is designed for direct-fit replacement on select Lexus and Toyota models. Engineered with stainless steel construction and a ceramic substrate, this component ensures durability and compliance with federal emissions standards.

  • Constructed from corrosion-resistant stainless steel body
  • Includes inlet and outlet gaskets for proper sealing
  • Features a 6 bolt welded flange inlet and 2 bolt welded flange outlet
  • Equipped with one O2 sensor port for accurate emissions monitoring
  • Overall length of 17 inches for precise fitment
  • Ceramic substrate material for effective catalytic conversion
  • Federal/EPA direct-fit manifold type for Lexus and Toyota vehicles

Detailed Product Description

This AP Exhaust catalytic converter with integrated exhaust manifold (part number 641238) is specifically designed to meet federal and EPA emissions requirements. The stainless steel body provides resistance to rust and corrosion, extending the service life of the part. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions. The unit includes inlet and outlet gaskets to ensure a secure and leak-free installation. The inlet features a 6 bolt welded flange, while the outlet uses a 2 bolt welded flange, both designed for a direct-fit replacement without modification. Additionally, the single O2 sensor port allows for proper sensor installation to maintain engine performance and emissions control.

Compatible Vehicles and Applications

  • Compatible with Lexus Highlander models requiring direct-fit catalytic converters
  • Fits Toyota Highlander, RX330, RX400h, and Sienna models
  • Ideal for replacing worn or damaged catalytic converters integrated with exhaust manifolds
  • Addresses issues related to emissions compliance and exhaust leaks
  • Suitable for vehicles experiencing check engine light due to catalytic converter faults

Installation Notes and Tips

Installation of the AP Exhaust catalytic converter 641238 requires removal of the existing manifold and catalytic converter assembly. Ensure all gaskets are properly seated to prevent exhaust leaks. The 6 bolt inlet flange and 2 bolt outlet flange should be torqued to manufacturer specifications. Since no inlet or outlet hardware is included, reuse existing bolts or acquire appropriate fasteners. Verify O2 sensor port alignment before final installation to maintain sensor functionality.

Quality Assurance and Warranty

AP Exhaust manufactures this catalytic converter with integrated manifold to meet federal EPA standards for emissions control. The stainless steel construction and ceramic substrate are designed for durability and long-term performance. While specific warranty details are not provided, AP Exhaust products typically adhere to industry quality standards to ensure reliable operation.

BrandAP Exhaust
Part Number641238
Body MaterialStainless steel
Inlet GasketYes
Inlet HardwareNone
Inlet Type A6 bolt welded flange
O2 Sensor Ports1
Outlet GasketYes
Outlet HardwareNone
Outlet Type A2 bolt welded flange
Overall Length (IN)17
Substrate MaterialCeramic
TypeFederal / epa direct-fit manifold

This part fits 43 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersFuel TypePositionNotes
2008LexusRX400h3.3LV6ELECTRIC/GASFront LeftFederal 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.
2008LexusRX400h3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007LexusRX400h3.3LV6ELECTRIC/GASFront LeftFederal 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.
2007LexusRX400h3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007ToyotaHighlanderBase3.3LV6GASFrontDirect 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.
2007ToyotaHighlanderLimited3.3LV6GASFrontDirect 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.
2007ToyotaHighlanderSport3.3LV6GASFrontDirect 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.
2007ToyotaHighlanderLimited3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007ToyotaHighlanderHybrid3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007ToyotaHighlanderHybrid Limited3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007ToyotaHighlanderBase3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2007ToyotaHighlanderSport3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006LexusRX3303.3LV6FrontDirect 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.
2006LexusRX3303.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006LexusRX400h3.3LV6ELECTRIC/GASFront LeftFederal 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.
2006LexusRX400h3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaHighlanderLimited3.3LV6GASFrontDirect 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.
2006ToyotaHighlanderSport3.3LV6GASFrontDirect 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.
2006ToyotaHighlanderBase3.3LV6GASFrontDirect 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.
2006ToyotaHighlanderSport3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaHighlanderHybrid Limited3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaHighlanderLimited3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaHighlanderBase3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaHighlanderHybrid3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2006ToyotaSiennaFWD3.3LV6FrontDirect 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.
2006ToyotaSiennaAWD3.3LV6FrontDirect 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.
2006ToyotaSienna3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2005LexusRX3303.3LV6FrontDirect 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.
2005LexusRX3303.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2005ToyotaHighlanderBase3.3LV6GASFrontDirect 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.
2005ToyotaHighlanderLimited3.3LV6GASFrontDirect 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.
2005ToyotaHighlander3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2005ToyotaSiennaFWD3.3LV6FrontDirect 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.
2005ToyotaSiennaAWD3.3LV6FrontDirect 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.
2005ToyotaSienna3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2004LexusRX3303.3LV6FrontDirect 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.
2004LexusRX3303.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2004ToyotaHighlanderBase3.3LV6GASFrontDirect 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.
2004ToyotaHighlanderLimited3.3LV6GASFrontDirect 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.
2004ToyotaHighlander3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.
2004ToyotaSiennaFWD3.3LV6FrontDirect 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.
2004ToyotaSiennaAWD3.3LV6FrontDirect 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.
2004ToyotaSienna3.3LV6Front LeftDirect Fit; Manifold Unit, Radiator Side; 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.