Delphi ES10333 Oxygen Sensor

Delphi ES10333 Oxygen Sensor Overview

The Delphi ES10333 is a heated upstream oxygen sensor built for precise exhaust monitoring and reliable engine management feedback. It draws on Delphi’s OE heritage and supplier experience to deliver the fit and signal characteristics expected in service replacement applications.

Compatible with select Volkswagen Cabrio, Golf, Jetta, Passat, and Corrado models from 1992-1995, this Delphi oxygen sensor is a direct-fit option for vehicles that need accurate air-fuel ratio input at the upstream location. The ES10333 part number is commonly searched for Volkswagen oxygen sensor replacement needs.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 4-wire design for modern sensor circuit integration
• Flat connector shape for application-specific electrical connection
• 18 x 1.5 mm thread size for proper exhaust bung fitment
• Overall length: 625.0
• Upstream position for pre-catalyst exhaust monitoring
• Package contents include the oxygen sensor and instruction sheet

Detailed Description

Delphi ES10333 is engineered as an upstream heated oxygen sensor for Volkswagen applications including the 1995 Volkswagen Cabrio, 1993-1995 Volkswagen Golf, 1993-1995 Volkswagen Jetta, 1992-1994 Volkswagen Corrado, and 1993-1994 Volkswagen Passat, plus 1995 Volkswagen Passat with California Emission System. As an upstream sensor, it monitors exhaust oxygen content before the catalytic converter so the engine control system can adjust fuel delivery and maintain proper combustion control. Delphi’s OE background informs the sensor design, materials, and signal response expected in emission control service.

This part cross-references Bosch (e.g., 13267, 13439) for the same application. The ES10333 part number is also referenced in aftermarket catalogs for Volkswagen oxygen sensor replacement, including Golf and Jetta service searches.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle or inconsistent fuel trim readings
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emission test failures tied to upstream sensor faults
• Slow sensor response during closed-loop operation

Installation Notes and Tips

Verify the connector shape, thread size, and upstream location before installation. Confirm the vehicle’s emission configuration, especially for the 1995 Volkswagen Passat with California Emission System, to ensure correct application matching. Inspect the exhaust bung threads and wiring routing before tightening the sensor to specification.

Quality Assurance

Delphi builds this oxygen sensor using OE experience and application knowledge developed through supplier work with major automakers. That OE-focused background supports consistent fitment, electrical connection, and sensor performance for emission control service.