Catalytic Converter for Honda Odyssey (1999-2004) 3.5L Front

Direct-Fit Front Catalytic Converter for 1999-2004 Honda Odyssey (RL1)

What it Does: The front direct-fit catalytic converter replaces the clogged or degraded factory emissions unit on the 1999-2004 Honda Odyssey to restore exhaust scavenging, clear efficiency trouble codes, and ensure legal emissions compliance.

The Stock Honda Odyssey Catalyst Degradation

High-mileage RL1 chassis Odysseys frequently experience washcoat thermal breakdown and internal substrate sintering within the stock manifold and front exhaust sections. As unburnt hydrocarbons coat the factory ceramic brick, flow resistance spikes dramatically, triggering recurring P0420 catalyst efficiency codes and choking the J35A V6 engine under acceleration and highway load.

The Engineering Solution

This direct replacement assembly features heavy-gauge stainless steel tubing that resists thermal stress cracking and underbody corrosion. The internal high-flow ceramic substrate is washcoated with active precious metals to ensure efficient exhaust gas conversion without creating parasitic backpressure. Built to factory tolerances, it includes precision-aligned mounting flanges, factory-positioned O2 sensor bungs, and direct interchangeability with OEM reference numbers 13071, 642717, 16369, and 40358, eliminating the need for cutting or custom fabrication.

Technical Specifications

Compatibility

• 1999-2004 Honda Odyssey LX 3.5L V6
• 1999-2004 Honda Odyssey EX 3.5L V6
• 2002-2004 Honda Odyssey EX-L 3.5L V6

Frequently Asked Questions

Does this fit the RL1 Odyssey?

Yes, this is a direct fit for the 1999-2004 Honda Odyssey equipped with the J35A 3.5L V6 engine.

Will this resolve my P0420 check engine light?

Yes, replacing a contaminated or melted core with this fresh substrate assembly clears catalytic efficiency DTCs assuming upstream fuel delivery and sensors function correctly.

The Honda Caliber

Designed to maintain legendary Honda road-trip reliability, this replacement converter preserves engine longevity, ensures smooth power delivery, and keeps your exhaust system sealed against intrusive cabin fumes.