HomeEmission Control > SensorsDelphi ES20087 Oxygen Sensor - Front, Rear or Right
Part #: ES20087

Delphi ES20087 Oxygen Sensor - Front, Rear or Right

Front, Right, and Rear
19 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$103.68Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Kia, Mazda, and Mercury, Escort, Miata, MX-3, Protege, Sephia, and Tracer
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Delphi ES20087 Heated Oxygen Sensor Overview

The Delphi ES20087 is a heated oxygen sensor designed for precise emission control in select Ford, Kia, Mazda, and Mercury vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate readings and reliable performance for models like the Ford Escort and Mazda Miata.

  • Heated oxygen sensor with 4 wires for efficient operation
  • Square connector shape for secure and proper fitment
  • Thread size of 18 x 1.5 mm compatible with specific vehicle ports
  • Overall length of 550.0 mm to match OEM specifications
  • Includes oxygen sensor and instruction sheet for installation guidance
  • Positioned for front, rear, and right locations depending on vehicle requirements

Detailed Product Description

The Delphi ES20087 oxygen sensor is a critical component in the emission control system, designed to monitor oxygen levels in the exhaust gases. Its heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and heater circuit, ensuring consistent sensor operation under various driving conditions. The square connector shape and 18 x 1.5 mm thread size provide a precise fit for compatible vehicles, including the Ford Escort, Kia Sephia, Mazda MX-3, and Mercury Tracer. With an overall length of 550 mm, this sensor matches factory specifications to maintain proper sensor placement and function.

Compatible Vehicles and Applications

  • Ford Escort emission control sensor replacement
  • Kia Sephia oxygen sensor for emission system maintenance
  • Mazda Miata and MX-3 heated oxygen sensor upgrade
  • Mercury Tracer front and rear oxygen sensor applications
  • Protege and other specified models requiring 4-wire heated sensors

Installation Notes and Tips

When installing the Delphi ES20087 oxygen sensor, ensure the correct position is identified—front, rear, or right—based on your vehicle’s specific requirements. Use the included instruction sheet for guidance on torque specifications and connector alignment. Proper installation helps maintain sensor accuracy and prevents exhaust leaks. It is recommended to inspect the wiring harness and connector for damage before installation to ensure optimal sensor performance.

Quality Assurance and Warranty

Delphi manufactures the ES20087 oxygen sensor to meet OEM standards for durability and performance. While specific warranty details are not provided, Delphi products typically undergo rigorous testing to ensure reliability in emission control applications. Using this sensor helps maintain compliance with emission regulations and supports engine management system accuracy.

BrandDelphi
Part NumberES20087
Sensor TypeHeated
Wire Quantity4
Connector ShapeSquare
Thread Size18 x 1.5 mm
Overall Length550.0
Package ContentsOxygen sensor, instruction sheet
Position(s)Front, rear, right. for the position specific to your vehicle, re

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2000MazdaMiataRearwith California Emission System
2000MazdaProtegeFrontwithout California Emission System
1999MazdaMiataRearwith California Emission System
1999MazdaProtegeFrontwithout California Emission System
1998MazdaProtegeFront
1997KiaSephiaFront
1997MazdaProtegeFront
1996FordEscortFront
1996KiaSephiaFront
1996MazdaProtegeFront
1996MercuryTracerFront
1995FordEscortFront
1995KiaSephiaFront
1995MazdaProtegeFront
1995MercuryTracerFront
1994MazdaMX-3Rightwithout California Emission System
1994MazdaProtegeLXN/A
1993MazdaMX-3Right
1992MazdaMX-3Right

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1330613579138-540138-552138-610138-7361385913863138861532221313172131409213148221315362203222531234-3085234-4140234-4146234-460624087250-24245BP3C-18-861BP3C-18-8619UBP4Y-18-861ABP4Y-18-861CBP4Y-18-861C9UBPD3-18-861BPD3-18-861ABPD3-18-861A9UBPE1-18-861BPE1-18-861ABPE1-18-861A9UDY-743F5C6 9F472-ABF5CZ 9F472-AF5CZ 9F472-AAF5CZ 9F472-ABK805-18-861AK805-18-861A9UK8O518861A9UMBP3C-18-861MBPD3-18-861MBPD3-18-861AMBPD4-18-861OS1059OS675OS685OS694OS703REA1087SG1036SG316SG407SG420SG615SG620SG997SU290SU4556SU4557SU4559SU4593SU4616SU4620SU5245ZM01-18-861ZM01-18-861AZM01-18-861A9U

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.