Delphi ES20322 Oxygen Sensor - Front

Delphi ES20322 Oxygen Sensor Overview

The Delphi ES20322 is a heated front oxygen sensor built for precise exhaust monitoring in select Honda and Acura applications. It uses a 4-wire design with a square connector and 18 x 1.5 mm thread size, making it a direct-fit replacement for vehicles that require accurate air-fuel feedback at the front sensor location.

Delphi draws on OE heritage and supplier experience with major automakers, bringing factory-informed engineering to this aftermarket oxygen sensor. This ES20322 oxygen sensor is a fitment-based replacement for 1992-2000 Honda and Acura models, including Honda Civic, Honda Accord, Honda Odyssey, Acura CL, Acura Integra, and Civic del Sol applications.

Key Features

• Heated oxygen sensor for faster operating temperature and signal response
• 4-wire configuration for select front sensor applications
• Square connector shape for OE-style electrical connection
• 18 x 1.5 mm thread size for direct mounting
• Overall length: 375.0
• Front position fitment for supported applications
• Package contents: oxygen sensor and instruction sheet

Detailed Product Description

Delphi ES20322 is engineered as a front oxygen sensor for vehicles that rely on accurate exhaust oxygen measurement to manage fuel delivery and emissions performance. The heated sensor design helps the unit reach operating temperature quickly, which supports stable feedback during cold starts and normal driving. With its square connector, 4-wire layout, and OE-style thread specification, this part is built for straightforward replacement in the listed Honda and Acura applications. This part number, ES20322, is commonly searched for front oxygen sensor replacement on Honda Civic, Honda Accord, and Acura CL platforms.

This part cross-references Bosch 13007 and DENSO Auto Parts 234-4099 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings from a worn front sensor
• Reduced fuel control caused by slow sensor response
• Emissions test failures tied to sensor degradation
• Rough idle or drivability issues linked to faulty exhaust feedback

Installation Notes and Fitment

• Fits 1999-2000 Honda Odyssey, front
• Fits 1998-1999 Honda Accord, front
• Fits 1997-1998 Acura CL, front
• Fits 1998 Honda Civic, front
• Fits 1994-1995 Honda Civic, N/A
• Fits 1992 Honda Civic, N/A
• Fits 1993-1995 Honda Civic del Sol, N/A
• Fits 1992-1993 Acura Integra, N/A
• Fits 1993 Honda Civic, N/A, with 2 or 4 Doors
• Fits 1993 Honda Civic, N/A, with 2, 3 or 4 Doors

Verify connector shape, thread size, and sensor position before installation. Use the included instruction sheet and confirm the front sensor location matches the vehicle’s original configuration. For Honda Civic, Honda Accord, and Acura CL applications, matching the OE-style connector and wire count is important for proper installation.

Quality Assurance

Delphi builds aftermarket parts using OE experience and knowledge developed through long-term supplier relationships with major automakers. That OE-based approach is reflected in the ES20322 oxygen sensor’s fitment-focused design and factory-style specifications.