Catalytic Converter for Ford F-150 (2009-2010) 4.6L Left

Direct-Fit Left Catalytic Converter for 2009-2010 Ford F-150 (P415)

What it Does: The direct-fit left catalytic converter replaces a degraded or plugged factory emissions unit on the 2009-2010 Ford F-150 to restore proper exhaust velocity, eliminate catalyst efficiency trouble codes, and reduce tailpipe emissions.

The Stock Ford F-150 Catalyst Degradation

Factory exhaust converters on high-mileage P415 platform trucks frequently suffer from internal thermal breakdown, washcoat sintering, and substrate melt-down caused by sustained heavy towing loads and rich fuel trims. As the internal honeycombs crumble or clog, exhaust backpressure spikes across the left bank, causing exhaust gas scavenging loss, sluggish throttle tip-in, and inevitable P0420/P0430 diagnostic trouble codes on the 4.6L Modular V8.

The Engineering Solution

Engineered to exact OEM dimensions, this direct-fit converter utilizes a heavy-gauge stainless steel outer shell and robust round casing to withstand thermal fatigue and road debris corrosion. Internally, a flow-optimized ceramic substrate features a high-density precious metal washcoat to clean raw hydrocarbons and carbon monoxide efficiently. CNC-cut 2-bolt loose flanges, flare joints, and factory-located O2 sensor bungs allow a straight bolt-on replacement for part number 645204 without requiring pipe expansion or custom fabrication.

What's Included

• 1 × Left Direct-Fit Catalytic Converter
• Installation Hardware / Accessories

Technical Specifications

Compatibility

• 2009 Ford F-150 4.6L V8 (Left Position)
• 2010 Ford F-150 4.6L V8 (Left Position)

Frequently Asked Questions & Fitment Warnings

Does this fit the P415 F-150?

Yes, this is a direct fit for the 2009-2010 Ford F-150 equipped with the 4.6L Modular V8 on the driver (left) side. Non-CARB compliant: this item cannot be sold or shipped to California, New York, Colorado, or Maine.

Is welding or pipe cutting required for installation?

No, this unit is built with factory-matched 2-bolt flanges and direct OE-routed connection points for a complete bolt-on repair.

The Ford Truck Standard

Built for the structural and thermal demands of working half-ton pickups, this converter maintains correct backpressure metrics to preserve low-end torque when towing trailers or carrying heavy payloads.