Delphi ES10680 Oxygen Sensor - Front

Delphi ES10680 Oxygen Sensor Overview

Delphi ES10680 is a heated oxygen sensor built for front-position applications on select Nissan and Mercury vehicles. It uses a 3-wire design with a flat connector and 18 x 1.5 mm thread size, making it a direct-fit option for emissions and fuel-control service on covered applications.

Backed by Delphi’s OE heritage, this oxygen sensor reflects decades of original-equipment experience used in aftermarket replacement parts. The ES10680 is a practical choice for drivers servicing a Nissan Altima, Nissan Quest, Nissan 240SX, Nissan Pickup, or Mercury Villager with a front sensor requirement.

Key Features

• Heated oxygen sensor for front-position applications
• 3-wire configuration with flat connector shape
• 18 x 1.5 mm thread size
• Overall length: 275.0
• Includes oxygen sensor and instruction sheet
• OE-informed design from Delphi

Fitment Details

• Fits 1999-2000 Mercury Villager, front, without California Emission System.
• Fits 1999-2000 Nissan Quest, front, without California Emission System.
• Fits 1997-1999 Nissan Altima, front.
• Fits 1996-1998 Mercury Villager, front.
• Fits 1996-1998 Nissan 240SX, front.
• Fits 1996-1998 Nissan Quest, front.
• Fits 1997 Nissan Pickup, front.
• Fits 1996 Nissan Altima, front, from 02/1996 to 02/1996, with California Emission System.
• Fits 1996 Nissan Pickup, front, from 01/1996.
• Fits 1994-1995 Mercury Villager, N/A.
• Fits 1995 Nissan Quest, N/A.
• Fits 1994 Nissan Quest, N/A, from 11/1993.
• Fits 1987-1989 Nissan 300ZX, N/A.
• Fits 1985 Nissan 300ZX, N/A.
• Fits 1987-1988 Nissan Maxima, N/A.
• Fits 1985 Nissan Maxima, N/A.
• Fits 1986 Nissan Maxima, N/A, to 01/1986.

Common Service Uses

• Replacing a worn front oxygen sensor on a Nissan Altima or Nissan Quest
• Addressing fuel mixture feedback issues tied to exhaust sensor aging
• Restoring emissions-system monitoring on covered Nissan and Mercury applications
• Correcting sensor response problems that can trigger drivability concerns
• Servicing front sensor locations on select 240SX, Pickup, Maxima, and Villager models

Installation Notes

Confirm connector shape, wire count, thread size, and front-position placement before installation. For fitment-sensitive applications, verify the vehicle’s emission configuration and production date, especially on 1996 Nissan Altima, 1996 Nissan Pickup, 1999-2000 Nissan Quest, and 1999-2000 Mercury Villager applications. This part cross-references DENSO Auto Parts (e.g., 234-3075, 234-3096) for the same application.

Quality Assurance

Delphi builds this oxygen sensor using OE experience and supplier knowledge developed over many years of original-equipment service. That background supports consistent fitment and sensor construction for front oxygen sensor replacement on select Nissan and Mercury vehicles. Part number ES10680 is also referenced as Delphi ES10680 for catalog and search accuracy.