Delphi ES20086 Oxygen Sensor - Rear, Rear Left or Rear Right

Delphi ES20086 Oxygen Sensor Overview

The Delphi ES20086 is a heated oxygen sensor built for rear exhaust positions on select Lexus and Toyota applications. It combines OE-based engineering with a square connector, 4-wire design, and 18 x 1.5 mm thread size for direct replacement service on listed vehicles.

Compatible With 1996-2005 Lexus and Toyota rear oxygen sensor applications, including Lexus GS300, IS300, SC400, and Toyota MR2 Spyder.

Key Features

• Heated oxygen sensor for rear exhaust monitoring
• 4-wire configuration with square connector shape
• 18 x 1.5 mm thread size for listed applications
• Overall length: 820.0
• Package contents: oxygen sensor and instruction sheet
• Position coverage includes rear, rear left, and rear right depending on vehicle application

Detailed Description

Delphi ES20086 is an OE-style replacement oxygen sensor backed by Delphi’s century of original equipment experience. It is engineered for rear sensor locations on 1996-2005 Lexus GS300, 2001-2005 Lexus IS300, 2000-2005 Toyota MR2 Spyder, and 1996-2000 Lexus SC400 applications, with position-specific coverage for rear, rear left, and rear right where listed. This part number, ES20086, is a direct reference for buyers searching for a rear oxygen sensor for Lexus GS300 or Toyota MR2 Spyder service.

This part cross-references Bosch 15246 and DENSO Auto Parts 234-4517 for the same application.

What It Helps Address

• Check engine light related to rear oxygen sensor performance
• Incorrect exhaust oxygen feedback to the engine control system
• Emissions test failures tied to sensor response issues
• Rough idle or drivability concerns caused by inaccurate air-fuel data
• Sensor replacement needs on aging Lexus GS300, IS300, SC400, or Toyota MR2 Spyder exhaust systems

Installation Notes and Tips

Verify the exact position before ordering, since this sensor is listed for rear, rear left, and rear right locations depending on the vehicle. Confirm thread size, connector shape, wire count, and overall length against the original sensor before installation. Use the application tab to match the correct side and engine configuration, especially on Lexus SC400 rear left and rear right listings.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and technical knowledge developed through long-term supplier relationships with major automakers. The ES20086 reflects that background in a service replacement oxygen sensor for the listed Lexus and Toyota applications.