AP Exhaust 645769 Catalytic Converter
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AP Exhaust

AP Exhaust 645769 Catalytic Converter

Brand AP Exhaust 645769
Clamp Qty 2
Inlet Gasket Qty None
Inlet Hardware None
Inlet Type A 2 bolt spinner
Inlet Type B 2 bolt spinner
O2 Sensor Ports 2
Outlet Gasket Qty None
Outlet Hardware None
Outlet Type A Slip fit
Substrate Material Ceramic
Type Federal / epa direct-fit
Fits Dodge · 8 vehicles

Direct-fit replacement. Built to exact OE dimensions for straightforward installation.

Ceramic substrate. Proprietary chemistry delivers efficient converter performance.

Federal / EPA compliant. Designed as a catalytic converter for emissions control.

$330.83Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $330.83
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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AP Exhaust 645769 Catalytic Converter

AP Exhaust 645769 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It is engineered for 2002-2003 Dodge Ram 1500 applications with a ceramic substrate and dual O2 sensor ports for a direct replacement on the specified emissions configurations.

Key Features

  • Federal / EPA direct-fit catalytic converter
  • Ceramic substrate material
  • 2-bolt spinner inlet design on both inlet sides
  • Slip-fit outlet connection
  • 2 O2 sensor ports
  • Built to OE dimensions for fitment accuracy
  • AP Exhaust part number 645769

Fitment Details

Compatible with 2002-2003 Dodge Ram 1500, N/A, for direct-fit replacement on Federal emissions applications. This part number 645769 also covers the listed Federal and California emissions note for the same vehicle range, with state restrictions applying in CA, CO, ME, and NY.

AP Exhaust uses proprietary substrate chemistry to support efficient catalyst loading while keeping replacement cost controlled. Its manufacturing process uses automated workstations, spinner welding equipment, and high-speed production lines to maintain consistent dimensions and fitment for the Dodge Ram 1500 platform.

Common Issues This Part Can Address

  • Failed emissions test results caused by a worn catalytic converter
  • Check engine light concerns related to catalyst efficiency codes
  • Restricted exhaust flow from a deteriorated converter substrate
  • Exhaust odor or emissions output from a converter that is no longer functioning properly
  • Fitment problems when replacing a damaged OE-style converter on the Ram 1500

Installation Notes and Tips

Verify the vehicle’s emissions configuration before ordering, since this converter is listed for specific Federal emissions applications and includes state-use restrictions in CA, CO, ME, and NY. Confirm the inlet and outlet connection styles, O2 sensor port locations, and OE-style mounting points against the original part before installation. For best results, inspect adjoining exhaust components, sensors, and sealing surfaces for wear or damage before completing the repair.

Quality Assurance

AP Exhaust builds this converter to OE dimensions using controlled manufacturing processes and substrate chemistry intended to support consistent converter efficiency and fitment. Part number 645769 is produced for direct-fit replacement use on the listed Dodge Ram 1500 applications.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersWheel BasePositionNotes
2003DodgeRam 1500RWD4.7LV8120.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2003DodgeRam 1500RWD4.7LV8140.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2003DodgeRam 1500RWD4.7LV8160.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2003DodgeRam 1500RWD4.7LV8—N/ADirect Fit; Federal Emissions; 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.
2002DodgeRam 1500RWD4.7LV8140.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2002DodgeRam 1500RWD4.7LV8120.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2002DodgeRam 1500RWD4.7LV8160.5"N/ADirect Fit; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2002DodgeRam 1500RWD4.7LV8—N/ADirect Fit; Federal Emissions; 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.