Catalytic Converter for Ford Explorer Sport Trac (2007-2010) 4.0L Rear

Direct-Fit Rear Catalytic Converter for 2007-2010 Ford Explorer Sport Trac (U251)

What it Does: The rear catalytic converter replaces degraded downstream emissions elements on the 2007-2010 Ford Explorer Sport Trac to eliminate P0420/P0430 diagnostic trouble codes and restore factory exhaust velocity.

The Stock Ford Explorer Sport Trac Catalyst Degradation

Factory catalytic converters on the U251 chassis suffer from thermal fatigue and internal catalyst sintering after prolonged heat cycles. Over time, the internal ceramic monolith substrate experiences washcoat erosion, leading to diminished hydrocarbon reduction and elevated exhaust backpressure. This restriction chokes exhaust scavenging on the 4.0L Cologne SOHC V6, triggering persistent check engine lights (CEL), reducing fuel efficiency, and causing upstream exhaust flange leaks under heavy engine load.

The Engineering Solution

Built with a heavy-gauge stainless steel casing and high-efficiency ceramic honeycomb monolith, this direct-fit rear converter assembly restores stoichiometric conversion efficiency. Precision laser-cut flanges match factory downstream junction points to eliminate exhaust blow-by without cutting or welding. Optimized cell density ensures compliant exhaust scrubbing while lowering backpressure, protecting the valvetrain of the 4.0L Cologne V6 during heavy towing operations.

Technical Specifications

Compatibility

• 2007 Ford Explorer Sport Trac 4.0L V6 (Rear)
• 2008 Ford Explorer Sport Trac 4.0L V6 (Rear)
• 2009 Ford Explorer Sport Trac 4.0L V6 (Rear)
• 2010 Ford Explorer Sport Trac 4.0L V6 (Rear)

Frequently Asked Questions

Does this fit the U251 Explorer Sport Trac?

Yes, this is a direct fit for the 2007-2010 Ford Explorer Sport Trac equipped with the 4.0L Cologne SOHC V6 engine.

Will this converter clear downstream catalyst efficiency trouble codes?

Yes, it restores stoichiometric reduction capacity to clear P0420 and P0430 DTCs without ECM reprogramming.

The Ford Utility Durability Standard

Engineered to handle the towing loads and sustained exhaust gas temperatures of the U251 mid-size truck platform, this replacement provides reliable emissions compliance and structural rigidity across demanding hauling duties.