Catalytic Converter for Nissan Pathfinder (2013-2019) 3.5L Rear

Direct-Fit Rear Catalytic Converter for 2013-2019 Nissan Pathfinder

What it Does: The direct-fit rear catalytic converter replaces the degraded downstream emissions core on the 2013-2019 Nissan Pathfinder to clear diagnostic trouble codes, normalize exhaust flow, and restore legal tailpipe emissions performance.

The Stock Nissan Pathfinder Substrate Failure and Flow Choke

Over high heat-cycles and sustained highway mileage, the factory rear converter monolith on the R52 platform experiences thermal degradation, washcoat breakdown, and structural sintering. Oil blow-by or running rich coats the factory honeycomb matrix, triggering recurring P0420 or P0430 DTC catalyst efficiency codes. Eventually, internal ceramic fragmentation leads to severe exhaust backpressure, causing localized heat soak and choking volumetric efficiency across the mid-to-high RPM range on both the naturally aspirated VQ35DE and direct-injected VQ35DD 3.5L V6 engines.

The Engineering Solution

Engineered with a heavy-gauge stainless steel outer shell, this direct-fit rear assembly resists road debris corrosion and thermal fatigue. Inside, a high-efficiency ceramic honeycomb substrate provides optimal precious metal surface loading to support complete exhaust gas redox reactions without restricting scavenging velocity. Precise OE-spec flanges, factory-location mounting brackets, and included hardware ensure drop-in alignment to OEM intermediate pipes without torching, cutting, or fabrication. This assembly, designated by part reference SM20133501, provides a secure, leak-free seal that prevents false downstream oxygen sensor readings.

Technical Specifications

Compatibility

• 2013-2019 Nissan Pathfinder S 3.5L V6
• 2013-2019 Nissan Pathfinder SV 3.5L V6
• 2013-2019 Nissan Pathfinder SL 3.5L V6
• 2013-2019 Nissan Pathfinder Platinum 3.5L V6

Frequently Asked Questions

Does this fit the R52 Pathfinder?
Yes, this is a direct fit for the 2013-2019 Nissan Pathfinder equipped with the VQ35DE and VQ35DD 3.5L engine.

Will this resolve catalyst efficiency DTCs like P0420?
Assuming fuel delivery and oxygen sensors are working properly, this converter restores emissions efficiency to clear catalytic threshold trouble codes.

The Nissan Durability Standard

Engineered to handle the constant thermal loads of family transport and up to 5,000 lbs of towing duty, this catalytic converter restores factory backpressure targets and mechanical durability for the long haul.