Delphi ES10638 Oxygen Sensor

Delphi ES10638 Oxygen Sensor for Toyota Celica

Delphi ES10638 is a front oxygen sensor built for 1990-1993 Toyota Celica models with California Emission System coverage and a 505 mm overall length. It uses a non-heated, 2-wire design with a square connector and 18 x 1.5 mm thread size for direct replacement service.

Key Features

• Non-heated oxygen sensor design
• 2-wire configuration with square connector
• 18 x 1.5 mm thread size
• 505.0 mm overall length
• Front position application
• Includes oxygen sensor and instruction sheet

Detailed Description

Delphi ES10638 is an emission control sensor for Toyota Celica front applications from 1990-1993. Delphi draws on OE heritage and supplier experience with major automakers, bringing factory-style engineering knowledge to this aftermarket oxygen sensor. This part cross-references Bosch 12202 for the same application.

Compatible With 1990-1993 Toyota Celica, front, this oxygen sensor is specified for California Emission System vehicles and matches the listed 505 mm overall length. The Delphi ES10638 is a direct-fit replacement choice for drivers servicing a Toyota Celica oxygen sensor circuit where the original sensor uses a non-heated, 2-wire layout.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Emission test failures tied to sensor output
• Rough idle or drivability issues caused by faulty sensor feedback
• Age-related sensor degradation in front exhaust monitoring

Installation Notes and Tips

Verify the connector shape, wire count, thread size, and overall length before installation. Confirm California Emission System coverage and front sensor placement on the vehicle before ordering. Use the included instruction sheet during installation and inspect the exhaust bung threads for damage or corrosion before threading in the new sensor.

Quality Assurance

Delphi builds this oxygen sensor using OE-focused engineering knowledge developed through long-term supplier experience with leading automakers. The ES10638 is made to meet the listed application details for 1990-1993 Toyota Celica front sensor service.