Front Oxygen Sensor for 2000-2002 Mazda 626 - Delphi ES20121

$79.99

Part number: ES20121

UPC: 689604145944

Condition: New

Weight: 0.20 LBS

Item Package Quantity: 1

$79.99

Current Stock: 8

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Delphi Oxygen Sensor P/N:ES20121

$79.99

Description

Delphi ES20121 front oxygen sensor for the 2000-2002 Mazda 626 4-cylinder 2.0L measures exhaust oxygen for the engine computer.

Planar technology covers older, conical design sensors
Smart design consolidates SKUs without using long wires
Patented protective sensor coating helps prevent contamination
Validated for all fuel types, including ethanol blends like E85
Tested to 150,000 miles plus 2,000 hours of severe thermal testing

Quick facts

Part: Delphi ES20121 oxygen sensor
Fits: 2000-2002 Mazda 626 4-cylinder 2.0L
Position: Front
Condition: New

A worn Delphi oxygen sensor can show up as a lit check engine light, poorer fuel economy or a rough idle. Those signs alone do not prove the sensor is the problem, since an exhaust leak can skew the readings too.

Fits

It is a direct-fit replacement for the 2000-2002 Mazda 626 4-cylinder 2.0L (L4-2.0L), which takes one front sensor. This listing is one sensor.

Specifications

Fit and size

Position: Front
Engine: L4-2.0L
Quantity per vehicle: 1

Build and materials

Technology: Planar
Coating: Patented protective sensor coating
Condition: New

In the box

One oxygen sensor and one instruction sheet.

Interchange: 234-4126 · FS1J-18-861B · 138-760 · FS1J-18-861 · FS1J-18-861A
OS2431 · 15278 · 22114 · REA1600 · SG983 · 25024364 · SU5252

Product information is for general reference and may contain errors. See our Disclaimer.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

OS2431, 15278, 234-4126, FS1J-18-861B, 138-760, FS1J-18-861, FS1J-18-861A, 22114, REA1600, SG983, 25024364, SU5252

Buyer's Q&A

Frequently Asked Questions

Is this a Mazda 626 oxygen sensor for the 2000-2002 4-cylinder 2.0L?

Yes. Delphi ES20121 is a front oxygen sensor for the 2000-2002 Mazda 626 4-cylinder 2.0L (L4-2.0L), and that engine takes one.

Does the Delphi ES20121 oxygen sensor come with instructions?

Yes. The package holds one oxygen sensor and one instruction sheet.

Are Delphi O2 sensors like this one validated for E85 ethanol blends?

Yes. Delphi ES20121 is validated for all fuel types, including ethanol blends like E85.

What are signs the Delphi ES20121 front oxygen sensor is wearing out?

A lit check engine light, poorer fuel economy or a rough idle can be signs. A shop can read the codes and test the sensor while the engine runs.

What testing is behind this front oxygen sensor?

This front oxygen sensor is tested to 150,000 miles, plus 2,000 hours of severe thermal testing. It also has a patented protective sensor coating that helps prevent contamination.