Catalytic Converter for Volvo XC90 (2011-2014) 3.2L

Direct-Fit Replacement Catalytic Converter for 2011-2014 Volvo XC90 (P2)

What it Does: The catalytic converter restores factory exhaust scavenging and chemical emissions conversion on the 2011-2014 Volvo XC90 to clear catalyst efficiency trouble codes and maintain proper closed-loop engine operation.

The Stock Volvo XC90 Catalyst Degradation

Factory catalytic converters on the P2 XC90 undergo intense thermal cycling and prolonged exposure to exhaust gas temperatures exceeding 800°C. Over extended mileage, the internal precious metal washcoat (platinum, palladium, rhodium) suffers thermal sintering and chemical deactivation. This failure diminishes catalyst storage capacity, triggering downstream lambda sensor fault codes P0420 and P0430. Continued thermal degradation can fracture the ceramic monolith, creating severe exhaust backpressure, sluggish mid-range engine response, and sulfur-rich exhaust fumes.

The Engineering Solution

Engineered for the transverse B6324S5 inline-six platform, this direct-replacement converter utilizes a high-temperature stainless steel outer shell designed to withstand thermal expansion and corrosion. Internally, a ceramic honeycomb substrate with an optimized cell-density matrix delivers high surface-area contact to oxidize hydrocarbons and carbon monoxide into harmless inert gases. Heavy-gauge 4-bolt welded flanges align precisely with factory downpipes and mid-sections, while integrated pre-catalyst sensor ports ensure accurate O2 sensor feedback without cutting or custom fabrication. Direct interchange with OEM part numbers 16666, 18H62-58, and 18H6258.

What's Included

• 1 x Direct-Fit Catalytic Converter

Technical Specifications

Compatibility

• 2011-2014 Volvo XC90 Base 3.2L I6
• 2011-2014 Volvo XC90 3.2 R-Design 3.2L I6

Frequently Asked Questions & Fitment Warnings

Does this fit the P2 XC90?

Yes, this is a direct fit for the 2011-2014 Volvo XC90 equipped with the B6324S5 3.2L engine. This 48-state EPA-compliant converter cannot be shipped to or registered in California, Colorado, New York, or Maine.

Will this unit resolve P0420 and P0430 diagnostic trouble codes?

Yes, replacing a chemically degraded or collapsed substrate with this fresh core restores correct conversion efficiency and clears catalyst DTCs, provided upstream oxygen sensors and exhaust seals are functional.

The Volvo Precision Standard

Designed to maintain strict European operational tolerances, this bolt-on catalytic converter stabilizes exhaust backpressure and sensor readings to eliminate check engine lights and preserve factory drivability.