Delphi ES10948 Oxygen Sensor - Rear

Delphi ES10948 Rear Oxygen Sensor

The Delphi ES10948 is a non-heated rear oxygen sensor built for precise exhaust monitoring on select Lexus applications. It uses a 2-wire design with a square connector and 18 x 1.5 mm thread size for direct-fit replacement service.

Key Features

• Non-heated oxygen sensor for rear position applications
• 2-wire configuration with square connector shape
• 18 x 1.5 mm thread size
• Overall length: 450.0
• Includes oxygen sensor and instruction sheet
• OE heritage backed by Delphi’s long history supplying major automakers

Detailed Description

Delphi ES10948 is an emission control oxygen sensor engineered for rear sensor locations on 1993-1994 Lexus LS400 models. It is built using Delphi’s OE experience and aftermarket knowledge, with specifications that match the required rear sensor application. For buyers searching for a 1993 Lexus LS400 rear oxygen sensor or a 1994 Lexus LS400 rear O2 sensor, ES10948 provides the correct fitment details in one part number.

This part cross-references DENSO Auto Parts 234-2011 for the same application.

What It Helps Address

• Faulty rear oxygen sensor readings
• Check engine light concerns related to exhaust oxygen monitoring
• Incorrect air-fuel feedback from a worn sensor
• Emission control inspection failures tied to sensor performance
• Restoring proper rear sensor function on Lexus LS400 applications

Installation Notes and Tips

Fits 1993-1994 Lexus LS400, rear. Confirm the connector shape, thread size, and wire count before installation to match the original sensor location. Use the vehicle’s rear sensor position only, and verify the exhaust bung threads are clean and undamaged before threading in the replacement sensor.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge from work with leading automakers. That OE background is reflected in the design and application coverage of ES10948.