Walker 350-341124 Oxygen Sensor - Downstream Right

OE Replacement Oxygen Sensor for Porsche Cayenne

Walker OE Replacement oxygen sensor part number 350-341124 is a direct-fit, heated narrow-band sensor for the downstream right position. It is built for specific vehicle application and ECU feedback requirements, making it a practical choice for Porsche Cayenne models that need accurate exhaust monitoring.

Key Features

• Heated narrow-band oxygen sensor for downstream right placement
• Specific-fit design for the listed Porsche Cayenne applications
• 4-wire configuration with oblong female connector and male spade terminals
• M18 x 1.5 threaded mounting with 22 mm wrench size
• Engineered to provide the diagnostic feedback expected by the ECU
• Walker OE Replacement part number 350-341124

Product Details

Walker Products develops engine management and oxygen/air-fuel sensors as OE replacement components for a wide range of vehicles. This Walker OE Replacement oxygen sensor is designed for the downstream right location on 2011-2014 Porsche Cayenne and 2015-2018 Porsche Cayenne, including B1S2 applications. The heated narrow-band design helps maintain sensor operation once exhaust temperatures stabilize, while the specific-fit construction supports proper connector and thread alignment during replacement. If you are searching for a Porsche Cayenne downstream right oxygen sensor, Walker 350-341124 is built for that exact service position.

This part cross-references no listed aftermarket part numbers for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Elevated exhaust emissions from a failing downstream sensor
• Rough engine operation when sensor data is no longer reliable
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Verify the downstream right location before installation and compare the connector, thread size, and wire count to the original sensor. Inspect the sensor harness and connector for heat damage, corrosion, or broken terminals, since physical damage can shorten service life. Confirm the M18 x 1.5 thread engagement and use the correct 22 mm wrench size during removal and installation.

Quality Assurance

Walker Products has produced engine management components since 1946 and operates with ISO 9001/TS 16949 quality systems. Part number 350-341124 is manufactured as an OE replacement sensor for the specified Porsche Cayenne applications.