Delphi ES20022 front oxygen sensor for the 1999-2002 Chevrolet Silverado 1500 V6 4.3L, V8 4.8L or 5.3L and other vehicles measures the oxygen left in the exhaust. This Delphi oxygen sensor sends that signal to the engine computer, which uses it to adjust fuel delivery.
- Planar technology that covers older, conical design sensors
- Smart design that consolidates SKUs without using long wires
- Patented protective sensor coating that 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 ES20022 oxygen sensor
- Fits: the 1999-2002 Chevrolet Silverado 1500 V6 4.3L, V8 4.8L or 5.3L and other vehicles
- Position: Front
A rough idle, poorer fuel economy or a lit check engine light can mean an oxygen sensor is wearing out. These signs alone do not prove the sensor is the problem, because an exhaust leak ahead of it can also skew the reading.
Fits
This sensor is listed for a wide range of Chevrolet, GMC and Cadillac models, including the 2000-2002 Chevrolet Tahoe V8 4.8L or 5.3L and the 1999-2002 GMC Sierra 1500 V6 4.3L, V8 4.8L or 5.3L. If your vehicle is not one of those, look up its year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Front
- Quantity per vehicle: 2
Build and materials
- Sensor technology: planar
- Coating: patented protective sensor coating
In the box
One oxygen sensor and one instruction sheet. This listing is one sensor, and the vehicles it fits take two.
Interchange: 234-4012 · 138-444 · DY-738 · 250-24012
AFS138 · 5S3167 · OS1008 · 13026 · 19178961 · 25315809 · 21006 · 24626 · REA1037 · SG454 · 11645 · SU1294
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
AFS138, 5S3167, OS1008, 13026, 234-4012, 19178961, 25315809, 138-444, DY-738, 21006, 24626, REA1037, SG454, 11645, 250-24012, SU1294
Frequently Asked Questions
Is this a Chevy Tahoe oxygen sensor for the 2000-2002 Chevrolet Tahoe V8 4.8L or 5.3L?
Yes. Delphi ES20022 is a front oxygen sensor listed for the 2000-2002 Chevrolet Tahoe with the V8 4.8L or 5.3L, and that Tahoe takes two.
Will this work as a Chevy Silverado 1500 oxygen sensor on the 1999-2002 Chevrolet Silverado 1500 V6 4.3L, V8 4.8L or 5.3L?
Yes. This front sensor is listed for that truck with the V6 4.3L, V8 4.8L and V8 5.3L, and the truck takes two; other vehicles can be looked up in the "Vehicles it fits" section.
Are Delphi O2 sensors like this one fine to use with E85 fuel?
Yes. The Delphi ES20022 is validated for all fuel types, including ethanol blends like E85.
Does the Delphi ES20022 oxygen sensor come with an instruction sheet?
Yes. The listing holds one oxygen sensor and one instruction sheet.
How is this front oxygen sensor protected from contamination?
A patented protective sensor coating helps prevent contamination. The sensor is also tested to 150,000 miles plus 2,000 hours of severe thermal testing.
