HomeExhaust > Catalytic ConverterAP Exhaust 642889 Catalytic Converter - Rear
Part #: 642889

AP Exhaust 642889 Catalytic Converter - Rear

Rear
⚙️ 15 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$488.86Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Prius and Prius V
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

AP Exhaust Catalytic Converter for Toyota Prius and Prius V

The AP Exhaust catalytic converter part number 642889 is designed specifically for Toyota Prius and Prius V models. Engineered to meet Federal and EPA direct-fit standards, this catalytic converter ensures proper emissions control and reliable performance.

Key Features of AP Exhaust Catalytic Converter 642889

  • Constructed from durable stainless steel body material for corrosion resistance
  • Includes an inlet gasket for a secure seal
  • Features a 2 bolt welded flange with flare inlet type for precise fitment
  • Equipped with one O2 sensor port to maintain accurate emissions monitoring
  • Outlet type is a 2.23 inch outside diameter pipe, designed for direct connection
  • Overall length measures 21.13 inches for exact replacement
  • Ceramic substrate material optimized for effective catalytic conversion
  • Federal / EPA direct-fit type ensures compliance with emissions regulations

Detailed Product Description

This AP Exhaust catalytic converter 642889 is manufactured with a stainless steel body to resist rust and extend service life. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions, supporting environmental standards. The inlet flange uses a 2 bolt welded flange with flare design, providing a secure and leak-free connection to the exhaust manifold. The single O2 sensor port allows for proper sensor installation, maintaining engine performance and emissions control. The outlet pipe diameter of 2.23 inches matches factory specifications, allowing for straightforward installation without modifications. This catalytic converter is a Federal / EPA direct-fit replacement, making it compatible with Toyota Prius and Prius V vehicles requiring emissions-compliant parts.

Common Applications and Issues Addressed

  • Replacement for failing or clogged catalytic converters on Toyota Prius and Prius V
  • Restores proper exhaust emissions to meet Federal and EPA standards
  • Eliminates check engine light caused by catalytic converter faults
  • Improves exhaust flow and engine efficiency by removing blockages
  • Prevents failed emissions tests due to converter degradation

Installation Notes and Tips

Ensure the vehicle is cooled down before beginning installation. This part includes an inlet gasket but does not include inlet or outlet hardware, so verify if additional bolts or clamps are needed. The 2 bolt welded flange with flare requires proper alignment to avoid exhaust leaks. The O2 sensor must be transferred or installed in the provided sensor port to maintain accurate emissions readings. Professional installation is recommended to ensure compliance with emissions regulations and proper fitment.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal and EPA standards for direct-fit replacement parts. The stainless steel construction and ceramic substrate provide durability and reliable emissions control. Warranty information is available from the manufacturer and should be confirmed at the time of purchase.

BrandAP Exhaust
Part Number642889
Body MaterialStainless steel
Inlet GasketYes
Inlet HardwareNone
Inlet Type A2 bolt welded flange w/ flare
O2 Sensor Ports1
Outlet GasketNot required
Outlet HardwareNone
Outlet HardwareYes
Outlet Type A2.23" od pipe
Overall Length (IN)21.13
Substrate MaterialCeramic
TypeFederal / epa direct-fit

This part fits 15 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2015ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2015ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2014ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2014ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2014ToyotaPrius V1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2013ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2013ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2013ToyotaPrius V1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2012ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2012ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2012ToyotaPrius V1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2011ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2011ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.
2010ToyotaPriusBase1.8LL4ELECTRIC/GASN/ADirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as poss; 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.
2010ToyotaPrius1.8LL4RearDirect Fit; Semi-Direct Fit, Vehicles w/ Heat Exchanger but not included. Cut as close to Heat Exchanger as possible; 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.