Catalytic Converter for Toyota Sequoia (2001-2004) 4.7L Left & Right

Direct-Fit Catalytic Converter Set for 2001-2004 Toyota Sequoia

What it Does: The direct-fit catalytic converter set replaces deteriorated emissions assemblies on the 2001-2004 Sequoia to clear catalyst-efficiency trouble codes and restore proper engine exhaust scavenging.

The Stock Toyota Sequoia Catalyst Degradation

Over hundreds of heat cycles and demanding towing regimes, the factory ceramic substrate inside the UCK35 / UCK45 exhaust assemblies experiences precious-metal washcoat attrition and internal breakdown. This thermal exhaustion leads to insufficient exhaust gas reduction, tripping persistent P0420 and P0430 diagnostic trouble codes. Concurrently, factory seam welds and pipe junctions corrode and split, leaking unmetered air that distorts oxygen sensor trims and compromises cylinder scavenging.

The Engineering Solution

Constructed specifically for the 2UZ-FE 4.7L V8 platform, this driver and passenger side assembly features corrosion-resistant stainless steel housings packed with a high-flow ceramic honeycomb matrix. Optimized cell density ensures proper hydrocarbon and carbon monoxide conversion while preserving unhindered exhaust gas velocity. Precision-stamped, direct-fit mounting flanges integrate directly to the OEM manifold studs and mid-pipe flanges, creating a leak-free mechanical seal that eliminates exhaust leaks and restores balanced exhaust backpressure without requiring custom fabrication.

Technical Specifications

Compatibility

• 2001 Toyota Sequoia SR5 / Limited 4.7L V8 (2UZ-FE)
• 2002 Toyota Sequoia SR5 / Limited 4.7L V8 (2UZ-FE)
• 2003 Toyota Sequoia SR5 / Limited 4.7L V8 (2UZ-FE)
• 2004 Toyota Sequoia SR5 / Limited 4.7L V8 (2UZ-FE)

Frequently Asked Questions

Does this fit the UCK35 / UCK45 Sequoia?
Yes, this is a direct fit for the 2001-2004 Toyota Sequoia equipped with the 2UZ-FE engine.

Will this resolve P0420 and P0430 diagnostic fault codes?
Yes, provided upstream fuel delivery and ignition components are functional, this assembly restores emissions efficiency to clear catalyst-related DTCs.

The Toyota Towing Standard

Engineered to handle sustained thermal stress under heavy payload and trailer pulling, this direct-replacement assembly delivers the structural integrity and emissions performance required to keep your full-size truck working reliably.