Catalytic Converter for Lincoln MKT (2013-2018) 3.7L Front Left & Right

High-Flow Direct-Replacement Catalytic Converters for 2013-2018 Lincoln MKT (D4)

What it Does: The front manifold catalytic converter pair replaces clogged or degraded factory converters on the 2013-2018 Lincoln MKT to eliminate P0420/P0430 efficiency codes and restore factory exhaust velocity.

The Stock Lincoln MKT Substrate Breakdown and Thermal Fatigue

Factory exhaust manifolds on the Cyclone 3.7L V6 package the catalytic substrate directly against the cylinder heads in the transverse D4 chassis. Over extended mileage, continuous thermal cycling, carbon accumulation, and unburnt hydrocarbon spikes degrade the factory ceramic washcoat. This degradation leads to restricted exhaust flow, increased backpressure, degraded fuel economy, and recurring check engine lights driven by catalyst efficiency failure.

The Engineering Solution

Engineered as a bolt-on solution for Bank 1 and Bank 2, this direct-fit catalytic converter set features robust stainless steel tubing and heavy-gauge flanges designed to resist thermal warping. The upgraded internal monolith optimizes precious metal loading for efficient emissions reduction without creating excessive backpressure. Precision automated welds secure the collector junctions, providing long-term structural integrity and direct alignment with factory downpipe connections matching OE references 674256 and 674255.

What's Included

• 1x Front Left (Bank 2) Catalytic Converter Manifold
• 1x Front Right (Bank 1) Catalytic Converter Manifold
• Installation Hardware and Gasket Accessories Set

Technical Specifications

Compatibility

• 2013 Lincoln MKT 3.7L V6
• 2014 Lincoln MKT 3.7L V6
• 2015 Lincoln MKT 3.7L V6
• 2016 Lincoln MKT 3.7L V6
• 2017 Lincoln MKT 3.7L V6
• 2018 Lincoln MKT 3.7L V6

Frequently Asked Questions & Fitment Warnings

Does this fit the D4 MKT?

Yes, this is a direct fit for the 2013-2018 Lincoln MKT equipped with the Cyclone 3.7L engine. It does not fit models equipped with the 3.5L EcoBoost twin-turbo engine.

Is this unit emissions legal in all states?

This replacement set is 46-state EPA compliant; it is not legal for sale, installation, or use in California, New York, Colorado, or Maine emissions applications.

The Lincoln Caliber

Maintain the refined cruising performance and quiet interior dynamics of your Lincoln luxury crossover with precise-fitting replacement emissions components engineered to factory tolerances.