Catalytic Converter for Nissan Xterra (2005-2015) 4.0L

Direct-Fit Driver-Side Catalytic Converter for 2005-2015 Nissan Xterra

What it Does: Replaces the clogged or deteriorated factory driver-side catalytic converter to restore exhaust scavenging, maintain OEM emissions compliance, and clear catalyst efficiency trouble codes.

The Stock Xterra Substrate Degradation

Factory catalytic converters on the N50 platform are prone to thermal fatigue and internal ceramic substrate breakdown over high mileage. As the factory honeycomb matrix degrades from thermal cycling and rich-condition exhaust pulses, fragmented washcoat restricts exhaust flow. This increases cylinder head backpressure, hampering low-end torque output and triggering persistent P0420/P0430 diagnostic trouble codes.

The Engineering Solution

Engineered with a heavy-gauge stainless steel canister and an optimized ceramic substrate, this direct-fit unit withstands sustained exhaust gas temperatures without structural collapse. Precision mandrel-bent transitions and thick CNC-machined flanges with TIG-welded seams prevent flange warping and exhaust leaks. Built with an integrated perforated heat shield, a factory-positioned oxygen sensor bung, and supplied OE-style mounting hardware for true bolt-on installation.

Technical Specifications

Compatibility

• Vehicle Fitment: 2005-2015 Nissan Xterra 4.0L V6 (Driver Side)
• Associated OE / Interchange Numbers: 16467, 201082, 58239, 18219, 642138
• Emissions Standard: EPA OBD-II Federal 49-State Approved (Not legal for sale or use in CA, NY, or ME)

The Nissan Off-Road Durability Caliber

Built to handle harsh off-camber trail vibration and heavy towing duty, this replacement converter delivers the structural durability and thermal resistance required to keep your VQ40DE running reliably under load.