Catalytic Converter for Kia Sorento (2007-2009) 3.3L 3.8L Rear

Direct-Fit Rear Catalytic Converter for 2007-2009 Kia Sorento

What it Does: The rear catalytic converter eliminates P0420/P0430 diagnostic trouble codes on the 2007-2009 Kia Sorento by treating post-manifold exhaust gases to restore factory emissions efficiency and uninhibited exhaust velocity.

The Stock Kia Sorento Washcoat Degradation & Substrate Fracturing

On high-mileage first-generation BL platform Sorento SUVs, the factory rear underfloor catalytic converter suffers from severe thermal fatigue and washcoat sintering. The OEM ceramic substrate degrades due to persistent thermal cycling and oil vapor contamination common to aging Lambda engines, leading to melted cell walls, internal matrix rattle, and severe backpressure spikes that rob power and trigger persistent check engine lights.

The Engineering Solution

Built with a heavy-gauge 409 stainless steel outer casing and premium direct-fit stamped flanges, this replacement assembly restores nominal exhaust flow dynamics. Inside, a high-flow, honeycombed ceramic substrate is optimized with an even precious metal washcoat distribution (Pt, Pd, Rh) to maximize catalytic reduction efficiency without restricting scavenging. Robotic TIG welds ensure leak-free durability under high thermal expansion, while factory-located mounting provisions and precision bolt-on flanges allow installation with zero cutting or custom pipe bending required.

Technical Specifications

Compatibility

• 2007-2009 Kia Sorento Base 3.3L V6 (G6DB)
• 2007-2009 Kia Sorento LX 3.3L V6 (G6DB)
• 2007-2009 Kia Sorento EX 3.8L V6 (G6DA)
• 2008-2009 Kia Sorento LX 3.8L V6 (G6DA)

Frequently Asked Questions

Does this fit the BL Sorento?
Yes, this unit is engineered specifically as a bolt-on direct replacement for the 2007-2009 Kia Sorento BL chassis running the 3.3L or 3.8L Lambda engine.

Will this resolve an active P0420 or P0430 DTC?
Yes, providing upstream air-fuel ratios and O2 sensors function properly, this unit restores chemical conversion efficiency to extinguish catalyst efficiency trouble codes.

The Kia Utility Standard

Engineered for the rigorous demands of body-on-frame towing and utility hauling, this replacement unit provides OEM-grade structural stamina and heat resistance to keep your rig running clean under heavy throttle loads.