Delphi ES10948 Oxygen Sensor - Rear

Delphi ES10948 Oxygen Sensor Overview

The Delphi ES10948 oxygen sensor is designed specifically for the rear position on Lexus LS400 models. This non-heated sensor features a 2-wire configuration and a square connector shape, ensuring precise fitment and reliable emission control performance.

• Non-heated oxygen sensor type for rear exhaust monitoring
• 2-wire design compatible with Lexus LS400
• Square connector shape for secure electrical connection
• Thread size of 18 x 1.5 mm for proper installation
• Overall length of 450.0 mm to match factory specifications
• Includes oxygen sensor and instruction sheet in package

Detailed Product Description

The Delphi ES10948 oxygen sensor is engineered to meet the emission control requirements of the Lexus LS400. Its non-heated sensor type is suitable for rear exhaust applications where heated sensors are not required. The 2-wire design simplifies installation and wiring compatibility. The square connector shape ensures a firm and accurate connection to the vehicle’s wiring harness, reducing the risk of electrical issues. With a thread size of 18 x 1.5 mm, this sensor fits securely into the exhaust system, while the overall length of 450.0 mm matches OEM specifications for proper placement and function.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by enabling precise engine control
• Supports proper operation of the vehicle’s emission control system

Installation Notes and Tips

When installing the Delphi ES10948 oxygen sensor on a Lexus LS400, ensure the engine and exhaust system are cool to avoid burns. Use the correct 18 x 1.5 mm thread size socket for removal and installation to prevent damage to the sensor or exhaust manifold. Verify the square connector is fully seated and locked to avoid electrical connection issues. Follow the included instruction sheet for torque specifications and wiring guidance.

Quality Assurance and Warranty

Delphi manufactures the ES10948 oxygen sensor to meet strict quality standards for durability and performance. This sensor undergoes rigorous testing to ensure reliable operation in emission control systems. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to support long-term use in Lexus LS400 vehicles.