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AP Exhaust 645231 Catalytic ConverterOE Quality 60-Day Returns
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Part #: 645231

AP Exhaust 645231 Catalytic Converter

⚙️ 20 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$610.35Free Shipping
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✅ 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: Dodge and Ram, 1500 and Ram 1500
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AP Exhaust Catalytic Converter for Dodge Ram 1500

The AP Exhaust 645231 catalytic converter is designed specifically for Dodge Ram 1500 models, providing a direct-fit replacement that meets Federal and EPA standards. Constructed with durable stainless steel and a ceramic substrate, this catalytic converter ensures reliable performance and emissions control.

  • Body material: corrosion-resistant stainless steel
  • Federal / EPA direct-fit catalytic converter
  • Inlet and outlet: 2 bolt loose flange with flare
  • Four O2 sensor ports for precise emissions monitoring
  • Overall length of 29 inches for exact fitment
  • Outlet pipe diameter: 3.00 inches OD
  • No inlet gasket required; outlet hardware included

Durable Construction and Precise Fitment

This AP Exhaust catalytic converter (part number 645231) features a stainless steel body that resists rust and corrosion, extending the life of your exhaust system. The ceramic substrate inside effectively reduces harmful emissions while maintaining optimal exhaust flow. Designed with two bolt loose flanges and flare connections on both inlet sides, it ensures a secure and leak-free installation. The four O2 sensor ports allow for accurate sensor placement, supporting your vehicle’s emissions control system.

Compatible Vehicles and Applications

This catalytic converter is compatible with Dodge Ram 1500 trucks, providing a direct replacement for factory-installed units. It is ideal for owners seeking a Federal/EPA-compliant part that fits without modification.

  • Replacement for damaged or failing catalytic converters on Dodge Ram 1500
  • Helps resolve check engine light issues related to emissions
  • Reduces harmful exhaust emissions to meet regulatory standards
  • Restores proper exhaust flow and engine performance
  • Supports O2 sensor functionality for accurate engine management

Installation Notes and Tips

The AP Exhaust 645231 catalytic converter is designed for direct-fit installation on Dodge Ram 1500 models. No inlet gasket is required, simplifying the installation process. Outlet hardware is included to secure the connection. Ensure all O2 sensors are properly connected to maintain emissions system integrity. Professional installation is recommended to verify proper fit and function.

Quality Assurance and Warranty

Manufactured to meet Federal and EPA standards, this catalytic converter undergoes rigorous quality control to ensure durability and performance. AP Exhaust provides a limited warranty covering defects in materials and workmanship. Refer to the warranty documentation for specific terms and conditions.

BrandAP Exhaust
Part Number645231
Body MaterialStainless steel
Inlet GasketNot required
Inlet HardwareNone
Inlet Type A2 bolt loose flange w/ flare
Inlet Type B2 bolt loose flange w/ flare
O2 Sensor Ports4
Outlet GasketNot required
Outlet HardwareYes
Outlet Type A3.00" od pipe
Overall Length (IN)29
Substrate MaterialCeramic
TypeFederal / epa direct-fit

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersWheel BasePositionNotes
2012Ram15004.7LV8120.5"N/ADirect 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.; w/ Single Exhaust
2012Ram15004.7LV8140.5"N/ADirect 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.; w/ Single Exhaust
2012Ram15004.7LV8N/ADirect 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.
2011Ram15004.7LV8120.5"N/ADirect 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.; w/ Single Exhaust
2011Ram15004.7LV8140.5"N/ADirect 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.; w/ Single Exhaust
2011Ram15004.7LV8N/ADirect 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.
2010DodgeRam 15004.7LV8140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15004.7LV8120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15005.7LV8140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15005.7LV8120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15003.7LV6120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15003.7LV6140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2010DodgeRam 15004.7LV8N/ADirect 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.
2009DodgeRam 15004.7LV8140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15004.7LV8120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15005.7LV8120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15005.7LV8140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15003.7LV6120.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15003.7LV6140.0"N/ADirect Fit; (4.7L Eng.); 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.; w/ Single Exhaust
2009DodgeRam 15004.7LV8N/ADirect 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.

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