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Catalytic Converter for Ford F-150 (2001-2003) 4.6L Left & Right



Regular price $225.95
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Direct-Fit Left & Right Catalytic Converter Assembly for 2001-2003 Ford F-150 (PN96)

What it Does: The Left & Right Catalytic Converter Assembly replaces degraded factory emissions units on the 2001-2003 Ford F-150 to restore correct exhaust scavenging, lower backpressure, and eliminate P0420/P0430 check engine lights.

The Stock Ford F-150 Substrate Degradation

Factory catalytic converters on the aging PN96 chassis suffer from thermal sintering and structural breakdown of the ceramic core. High-mileage Modular 4.6L V8 engines subject the factory matrix to repeated extreme thermal cycles and blow-by contamination. Over time, internal washcoat erosion and fractured ceramic channels create severe exhaust bottlenecks, choking high-RPM gas expulsion, robbing low-end torque, and triggering persistent downstream catalyst efficiency fault codes.

The Engineering Solution

Engineered as a direct bolt-on solution for 4WD platforms, this dual-bank assembly features heavy-gauge stainless steel tubing precision-formed to match factory geometry without modification. Inside, flow-optimized ceramic monolith substrates provide balanced exhaust treatment via an active precious metal washcoat (platinum, palladium, rhodium) to clean emissions while reducing parasitic backpressure. Fully integrated mounting flanges and factory-located oxygen sensor bungs ensure OE-level seal integrity, preventing exhaust leaks and maintaining accurate sensor readings.

Technical Specifications

Fitment 2001-2003 Ford F-150 (4WD Only)
Engine / Chassis Modular 4.6L V8 / PN96
Stock Output 231 hp / 293 lb-ft
Replaces OEM Part # 51839, 51171

Compatibility

  • 2001-2003 Ford F-150 Base 4.6L V8 4WD
  • 2001-2003 Ford F-150 XL 4.6L V8 4WD
  • 2001-2003 Ford F-150 XLT 4.6L V8 4WD
  • 2001-2003 Ford F-150 Lariat 4.6L V8 4WD
  • Note: 4WD configurations only; does not fit 2WD models. 46-state legal (not CARB-approved for CA, NY, CO, ME).

Frequently Asked Questions

Does this fit the PN96 F-150?

Yes, this is a direct fit for the 2001-2003 Ford F-150 4WD equipped with the Modular 4.6L V8 engine.

Will this resolve P0420 and P0430 catalyst efficiency trouble codes?

Yes, assuming the engine's closed-loop fuel metering and O2 sensors are functioning normally, this converter restores required oxygen storage capacity to clear efficiency codes.

The Ford Towing Standard

Designed to handle high exhaust heat loads under steep grades and towing duties, this stainless replacement assembly maintains leak-free flange seals and durability under rigorous truck usage.




Fitment

Make

Ford

Engine Size

  • 4.6L

Year

  • 2001
  • 2002
  • 2003

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]

Catalytic Converter for Ford F-150 (2001-2003) 4.6L Left & Right

$225.95