Delphi ES10963 Oxygen Sensor

Delphi ES10963 Oxygen Sensor for Geo and Suzuki

The Delphi ES10963 is a heated oxygen sensor built for front exhaust monitoring on select Geo Tracker and Suzuki Sidekick applications. It combines OE-based engineering with a 3-wire heated design, square connector, and 18 x 1.5 mm thread size for direct-fit replacement use.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 3-wire design with square connector shape
• 18 x 1.5 mm thread size for proper exhaust bung fitment
• 450.0 overall length for application-specific routing
• Front position sensor for monitored exhaust placement
• Includes oxygen sensor and instruction sheet

Detailed Description

Delphi ES10963 is an OE-style oxygen sensor engineered from Delphi’s long history of supplying original equipment to major automakers. For 1991-1994 Geo Tracker and 1992-1993 Suzuki Sidekick applications, this front heated oxygen sensor supports accurate exhaust feedback for vehicles without California Emission System requirements and, in select Sidekick applications, with Hardtop configuration. This part cross-references DENSO Auto Parts 234-4060 and Bosch 13073 for the same application.

What This Sensor Helps Address

• Check engine light caused by a failing front oxygen sensor
• Rough idle or inconsistent air-fuel feedback from an aging sensor
• Reduced fuel control from slow sensor response
• Emission test failures related to front O2 sensor performance
• Corrosion or wiring damage at the original sensor location

Installation Notes and Tips

Verify the vehicle’s emission configuration before ordering. This sensor is listed for 1994 Geo Tracker without California Emission System, 1991-1993 Geo Tracker, 1993 Suzuki Sidekick without California Emission System with Hardtop, and 1992 Suzuki Sidekick with Hardtop. Confirm the 18 x 1.5 mm thread size, square connector, and front position before installation. Use the included instruction sheet for routing and connector identification.

Quality Assurance

Delphi builds this oxygen sensor using OE heritage and application knowledge developed through decades of original equipment experience. That background is reflected in the sensor’s construction and fitment-focused design for Geo Tracker and Suzuki Sidekick service replacement.