Delphi Oxygen Sensor P/N:ES20014
Delphi ES20075 rear left oxygen sensor for the 1999-2001 Chevrolet Silverado 2500 V8 6.0L and other vehicles measures oxygen in the exhaust for the engine computer. This Delphi oxygen sensor replaces a worn or failed unit at the rear left position, and all Delphi O2 sensors are built to Delphi's OE standards.
A check engine light, lower fuel economy or a rough idle can go with a worn oxygen sensor. Before you replace a rear left oxygen sensor, rule out a wiring fault, a loose connector or an exhaust leak, since any of those can also set an oxygen sensor code.
The 1999-2001 Chevrolet Silverado 2500 V8 6.0L, the 2001 GMC Yukon V8 6.0L and the 1999-2001 GMC Sierra 2500 V8 6.0L all take this sensor, and so do other vehicles. If your vehicle is not named here, open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
One oxygen sensor and one instruction sheet. This listing holds one sensor, and on the vehicles named above the rear left position takes one; the other side is ordered separately.
Interchange: 234-4024 · 138-628
AFS137 · OS1007 · 13029 · 19178923 · 19355311 · 25315815 · 21510 · REA1033 · SG477 · 25024202 · SU1362
This part cross-references / interchanges with the following part numbers:
Will this GMC Yukon oxygen sensor fit a 2001 GMC Yukon V8 6.0L?
Yes. Delphi ES20075 is a rear left oxygen sensor for the 2001 GMC Yukon V8 6.0L, and it also fits the 1999-2001 Chevrolet Silverado 2500 V8 6.0L.
Does the Delphi ES20075 come with an instruction sheet?
Yes. This listing is one rear left oxygen sensor with an instruction sheet. The other side is a separate part and is ordered separately.
Can this oxygen sensor run on E85 fuel?
Yes. Delphi ES20075 is validated for all fuel types, including ethanol blends like E85.
How can I tell if the rear left oxygen sensor is going bad?
A check engine light, lower fuel economy or a rough idle can go with a worn sensor, though other faults can cause them too. A shop can test the sensor signal.
How was this Delphi sensor tested?
Delphi ES20075 has been OE tested to 150,000 miles and put through 2,000 hours of severe thermal testing. Its patented protective coating helps prevent contamination.
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