Catalytic Converter for Honda Ridgeline (2009-2011) 3.5L

Direct-Fit Catalytic Converter Set for 2009-2011 Honda Ridgeline

Direct-fit emissions replacement: Replaces degraded factory Bank 1 and Bank 2 manifold converters to eliminate P0420/P0430 diagnostic trouble codes and restore proper exhaust flow dynamics on the 3.5L V6.

The Stock Ridgeline Catalyst Thermal Breakdown

The factory catalytic converters mounted directly to the transverse V6 cylinder heads endure relentless thermal cycling and high exhaust gas temperatures. Over extended mileage, oil blow-by and heat fatigue degrade the internal precious-metal washcoat, causing ceramic substrate melt-down, increased exhaust backpressure, choked engine breathing, and recurring check engine lights.

The Engineering Solution

Constructed with durable stainless steel shells and premium high-flow ceramic substrates, this complete Bank 1 and Bank 2 assembly restores nominal exhaust scavenging and chemical conversion efficiency. Precision-welded, OEM-spec flanges align flush with the cylinder head ports and downstream exhaust piping, eliminating the risk of exhaust leaks while maintaining structural integrity under heavy thermal load without requiring custom fabrication.

Technical Specifications

Compatibility

• 2009 Honda Ridgeline 3.5L V6 (RT, RTS, RTL)
• 2010 Honda Ridgeline 3.5L V6 (RT, RTS, RTL)
• 2011 Honda Ridgeline 3.5L V6 (RT, RTS, RTL)

The Honda Truck Durability Standard

Built to handle continuous high-load towing and steep grade hauling, this converter set delivers the structural resilience necessary to keep your midsize truck running clean, responsive, and leak-free under severe duty cycles.