AP Exhaust 645151 Catalytic Converter - Left
OE Quality 60-Day Returns
AP Exhaust
 Direct Fit Converter

AP Exhaust 645151 Catalytic Converter - Left

Brand AP Exhaust 645151
Position Left
Converter Type Federal / epa direct-fit
Inlet Quantity 1
Outlet Quantity 1
California Air Resources Board (CARB) Certified No
Inlet A Connection Type Flange
Outlet A Connection Type Pipe
Package Material Corrugated cardboard
Package Type Box
Product line Direct Fit Converter
Fits Ford and Lincoln · 6 vehicles

Direct-fit design. Application-matched replacement with flange inlet and pipe outlet connections.

Federal / EPA type. Built for emissions service on non-CARB applications.

$375.01Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $375.01
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Catalytic Converter options

Direct-Fit Catalytic Converter

The AP Exhaust 645151 is a direct-fit catalytic converter built for specific Ford and Lincoln applications. It uses a Federal / EPA direct-fit design with flange-to-pipe connections for a straightforward exhaust repair.

  • Federal / EPA direct-fit converter for application-specific exhaust replacement
  • One inlet and one outlet for a simple flow path
  • Flange inlet connection and pipe outlet connection
  • AP Exhaust Direct Fit Converter line for application-matched exhaust service

Fitment Details

Compatible with 2015-2017 Ford Expedition, left, Federal and California Emissions; Direct Fit Converter. Compatible with 2015-2017 Lincoln Navigator, left, Federal and California Emissions; Direct Fit Converter.

What It Helps Address

  • Failed catalytic converter efficiency codes
  • Exhaust restriction from a worn substrate
  • Emissions test failures related to converter performance
  • Exhaust leaks at the converter connection points

Installation Notes

Verify emissions configuration and left-side fitment before installation. Match the inlet flange and outlet pipe connections to the existing exhaust layout on the vehicle.

Quality Assurance

AP Exhaust Direct Fit Converter parts are built for application-specific replacement use. Part number 645151 identifies this converter for the listed Ford Expedition and Lincoln Navigator fitments.

Related reading

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017FordExpedition3.5LV6LeftFederal and California Emissions; Direct Fit Converter
2017LincolnNavigator3.5LV6LeftFederal and California Emissions; Direct Fit Converter
2016FordExpedition3.5LV6LeftFederal and California Emissions; Direct Fit Converter
2016LincolnNavigator3.5LV6LeftFederal and California Emissions; Direct Fit Converter
2015FordExpedition3.5LV6LeftFederal and California Emissions; Direct Fit Converter
2015LincolnNavigator3.5LV6LeftFederal and California Emissions; Direct Fit Converter