Walker 350-34324 Oxygen Sensor - Upstream

Walker 350-34324 Oxygen Sensor Overview

Walker Products 350-34324 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Rolls-Royce and Bentley applications. It is built for upstream placement and provides the ECU with the feedback needed to monitor air-fuel control and emissions performance.

Compatible With 1993-1995 Rolls-Royce Silver Spirit, upstream; 1993-1995 Rolls-Royce Silver Spur, upstream; 1994 Rolls-Royce Corniche IV, upstream; and 1993-1994 Bentley Turbo R, upstream.

Key Features

• Walker Products Aftermarket oxygen sensor, part number 350-34324
• Heated sensor design for faster operating temperature
• Specific fit for the listed vehicle applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector for application-specific connection
• Wiring harness length: 37.32; overall length: 40.87

Detailed Description

Walker Products 350-34324 is an upstream oxygen sensor for select 1993-1995 Rolls-Royce Silver Spirit and Silver Spur models, 1994 Rolls-Royce Corniche IV, and 1993-1994 Bentley Turbo R applications. As a heated, threaded sensor with a specific-fit design, it is intended to deliver the diagnostic feedback the ECU expects from the original sensor location. The Walker Products Aftermarket line focuses on application-specific engine management and oxygen/air-fuel sensors for OE-style replacement needs.

This part number, 350-34324, is built for the listed upstream positions and should be matched to the vehicle’s connector style, harness length, and mounting requirements before installation. This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

• Check engine light or MIL illumination related to oxygen sensor performance
• Poor fuel economy caused by inaccurate air-fuel feedback
• Rough engine operation from incorrect upstream sensor readings
• Higher exhaust emissions due to degraded sensor response
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Verify the upstream position, connector shape, wire count, and thread diameter before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and affect ECU feedback. Confirm the application against the vehicle’s build date where noted, including the 1993 Bentley Turbo R from 04/93 and through 04/93 coverage listed for this part.

Quality Assurance

Walker Products states that its engine management sensors are developed for OE replacement use and that the company is ISO 9001/TS 16949 certified. Since 1946, Walker Products has supplied engine management and fuel system components for automotive applications.