Catalytic Converter for Toyota 4Runner (2005-2009) 4.7L Front Left & Right

Direct-Fit Front Exhaust Manifold Catalytic Converters for 2005-2009 Toyota 4Runner (N210)

What it Does: The direct-replacement front catalytic converter manifold set replaces cracked factory manifolds on the 2005-2009 Toyota 4Runner to restore proper exhaust scavenging, clear catalyst-efficiency check engine lights, and resolve manifold exhaust leaks.

The Stock Toyota 4Runner Exhaust Manifold Failure

The factory exhaust manifold and catalytic converter assembly on the N210 chassis equipped with the 2UZ-FE 4.7L V8 is notoriously prone to thermal stress fractures. Repetitive heat cycling from continuous operation and heavy towing creates stress fractures along the thin OEM welds and collector pipes. This leads to persistent exhaust ticking, unmetered oxygen entering upstream of the O2 sensors, and false lean readings that trigger P0420 and P0430 diagnostic trouble codes while degrading fuel efficiency.

The Engineering Solution

Engineered to resolve factory fatigue points, this direct replacement left and right manifold converter set features heavy-wall tubular construction and precision-machined, warp-resistant mounting flanges. The unit restores proper flow dynamics to the 32-valve 2UZ-FE engine, maintaining optimal exhaust velocity and backpressure balance. High-efficiency internal ceramic substrates with precise precious metal washcoats deliver clean chemical conversion of combustion byproducts without choking exhaust flow, matching OEM backpressure requirements and maintaining clean emissions performance.

What's Included

• 1x Front Left Exhaust Manifold Catalytic Converter
• 1x Front Right Exhaust Manifold Catalytic Converter

Technical Specifications

Compatibility

• 2005-2009 Toyota 4Runner SR5 4.7L V8
• 2005-2009 Toyota 4Runner Sport Edition 4.7L V8
• 2005-2009 Toyota 4Runner Limited 4.7L V8

Frequently Asked Questions & Fitment Warnings

Does this fit the N210 4Runner?

Yes, this is a direct fit for the 2005-2009 Toyota 4Runner equipped with the 2UZ-FE 4.7L V8 engine. Not legal for sale or use in California or Colorado. Not legal for California-emissions equipped vehicles in New York, or 2001 and newer California-emissions equipped vehicles in Maine.

Is welding or pipe cutting required for installation?

No cutting or welding is required; this is a direct bolt-on manifold replacement, though professional installation is recommended due to tight clearance around the steering shaft and motor mounts.

The Toyota Truck Caliber

Engineered to match the heavy-duty towing and off-road requirements of the 4th-generation 4Runner, this replacement exhaust manifold assembly resists thermal cracking to deliver long-term reliability under severe trail conditions.