Delphi ES10226 Oxygen Sensor - Front

Delphi ES10226 Oxygen Sensor Overview

The Delphi ES10226 is a non-heated upstream oxygen sensor built for older Toyota and Chevrolet applications that use a 505 mm overall length. It is a direct-fit emission control sensor for vehicles such as the Toyota MR2, Supra, Corolla, 4Runner, Cressida, Pickup, Tercel, Camry, Celica, and Van, plus the Chevrolet Nova.

Key Features

• Non-heated oxygen sensor for upstream placement
• 1-wire design with a round connector shape
• 18 x 1.5 mm thread size for the specified applications
• 505.0 overall length for proper routing and reach
• Includes oxygen sensor and instruction sheet
• OE-focused engineering backed by Delphi’s long supplier history

Detailed Description

Delphi ES10226 is an upstream oxygen sensor intended for select 1985-1992 Toyota and Chevrolet vehicles that require the 505 mm length and matching connector and thread specifications. Delphi draws on OE heritage and decades of supplier experience to produce aftermarket parts that follow original equipment expectations for fit and function. This part cross-references Bosch 12051 for the same application.

Compatible vehicle coverage includes Fits 1992 Toyota MR2, Front, with 505mm Overall Length; To 01/1992, Fits 1991 Toyota MR2, Front, with 505mm Overall Length, Fits 1989-1992 Toyota Supra, N/A, with 505mm Overall Length; without California Emission System, and Fits 1985-1988 Chevrolet Nova, N/A, with 505mm Overall Length. It also covers select Toyota Corolla, 4Runner, Cressida, Pickup, Tercel, Camry, Celica, and Van applications listed in the fitment data.

What This Sensor Helps Address

• Check engine light concerns related to oxygen sensor performance
• Incorrect air-fuel feedback to the engine control system
• Rough idle or drivability issues tied to aging sensor response
• Failed emissions testing caused by a worn upstream sensor
• Fuel mixture control problems on older Toyota and Chevrolet platforms

Installation Notes and Tips

Verify the vehicle’s position, connector style, thread size, and 505 mm overall length before installation. This ES10226 is an upstream sensor, so confirm the original sensor location and routing on the vehicle. Review the included instruction sheet before beginning service, and compare the existing connector and harness length to the replacement part. Fits 1985-1986 Toyota Camry, N/A, with 505mm Overall Length and Fits 1985-1986 Toyota Celica, N/A, with 505mm Overall Length when the listed specifications match.

Quality Assurance

Delphi builds this oxygen sensor using OE experience and supplier knowledge developed over many years of original equipment production. The ES10226 is engineered to meet the application-specific requirements of the listed Toyota and Chevrolet vehicles, including the upstream location and dimensional details needed for proper replacement.