Delphi ES10348 Oxygen Sensor

Delphi ES10348 Oxygen Sensor Overview

The Delphi ES10348 is a front oxygen sensor built for specific Mitsubishi, Hyundai, Plymouth, and Dodge applications that use a 705 mm overall length. It features a non-heated design, a 2-wire layout, and a round connector with an 18 x 1.5 mm thread size for direct replacement in listed emissions-control applications.

Delphi draws on OE experience and supplier knowledge developed over decades of original-equipment service. That background is reflected in the ES10348 oxygen sensor, which is built for vehicles such as the Mitsubishi Eclipse, Hyundai Sonata, and Plymouth Laser where accurate exhaust feedback is required.

• Non-heated oxygen sensor for front-position applications
• 2-wire configuration with round connector shape
• 18 x 1.5 mm thread size
• 705.0 overall length for listed fitments
• Package contents include the oxygen sensor and instruction sheet
• OE-based design from Delphi

Fitment and Cross References

Compatible with 1989-1994 Mitsubishi Eclipse, front; 1989-1994 Mitsubishi Galant, front; 1990-1990 Mitsubishi Mirage, front; 1990-1992 Mitsubishi Precis, front; 1991-1994 Plymouth Laser, front; 1989-1991 Dodge Colt, front; and listed Hyundai applications including Sonata, Excel, and Scoupe with 705 mm overall length and California emissions notes where specified. This part cross-references Bosch 12053 and DENSO Auto Parts 234-2002 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor signal faults
• Incorrect air-fuel feedback in emissions-control systems
• Rough idle or drivability issues tied to exhaust sensor input
• Failed emissions testing caused by a worn front sensor
• Replacement needs on vehicles with the specified 705 mm sensor length

Installation Notes

Verify the connector shape, wire count, thread size, and overall length before installation. This ES10348 is listed for front-position use only, so match the vehicle’s original sensor location and emissions configuration, including California-emissions notes where shown in the fitment data. Confirm the exhaust bung thread is 18 x 1.5 mm and inspect the harness routing before final tightening.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and knowledge developed through long-term original-equipment supply experience. The ES10348 is supported by that manufacturing background and includes an instruction sheet in the package.