O2 Oxygen Sensor Upstream and Downstream Fits for Chevy Silverado 1500 Suburban Tahoe, for GMC Sierra 1500 Yukon XL, for Cadillac Escalade 5.3L 6.2L Replace 234-4940 234-4974 4Pcs

for Chevy Impala 2014-2019 LS/LT 2.5L L4

for Chevy Impala 2014-2016 LTZ 2.5L L4

for Chevy Impala 2014 Eco 2.5L L4 MILD HYBRID EV-GAS (MHEV)

for Chevy LCF 3500 2018-2020 Base 6.0L V8

for Chevy Malibu 2013-2015 LT/LTZ 2.0L L4 Turbocharged

for Chevy Malibu 2013-2015 LS/LT/LTZ 2.5L L4

for Chevy Malibu Limited 2016 LS/LT/LTZ 2.5L L4

for Chevy Silverado 1500 2014 2016 Base 4.3L V6

for Chevy Silverado 1500 2016-2018 Custom 4.3L V6

for Chevy Silverado 1500 2015-2018 LS 4.3L V6

for Chevy Silverado 1500 2014-2018 LT/WT 4.3L V6

for Chevy Silverado 1500 2016-2018 Custom 5.3L V8

for Chevy Silverado 1500 2014-2018 High Country/LT/LTZ/WT 5.3L V8

for Chevy Silverado 1500 2015-2018 LS/SSV 5.3L V8

for Chevy Silverado 1500 2016 LS 5.3L V8 MILD HYBRID EV-GAS (MHEV)

for Chevy Silverado 1500 2016-2018 LT 5.3L V8 MILD HYBRID EV-GAS (MHEV)

for Chevy Silverado 1500 2018 LTZ 5.3L V8 MILD HYBRID EV-GAS (MHEV)

for Chevy Silverado 1500 2014-2018 High Country/LTZ 6.2L V8

for Chevy Silverado 1500 LD 2019 Custom/LT/WT 5.3L V8

for Chevy Silverado 2500 HD 2016-2019 High Country/LT/LTZ/WT 6.0L V8

for Chevy Silverado 2500 HD 2016 2018-2019 LT/LTZ/WT 6.0L V8 CNG

for Chevy Silverado 3500 HD 2016-2019 High Country/LT/LTZ/WT 6.0L V8

for Chevy Silverado 3500 HD 2016 2019 LT/LTZ/WT 6.0L V8 CNG

for Chevy Suburban 2015-2020 LS/LT 5.3L V8

for Chevy Suburban 2015-2016 LTZ 5.3L V8

for Chevy Suburban 2017-2020 Premier 5.3L V8

for Chevy Suburban 2020 Premier 6.2L V8

for Chevy Suburban 3500 HD 2016-2019 LS/LT 6.0L V8

for Chevy Tahoe 2015-2020 LS/LT/PPV/SSV 5.3L V8

for Chevy Tahoe 2015-2016 LTZ 5.3L V8

for Chevy Tahoe 2018 Midnight Edition 5.3L V8

for Chevy Tahoe 2017-2020 Police/Premier 5.3L V8

for Chevy Tahoe 2016-2017 Z71 5.3L V8

for Chevy Tahoe 2018-2020 Premier 6.2L V8

for GMC Acadia 2017-2021 SL/SLE 2.5L L4

for GMC Acadia 2017-2019 SLT 2.5L L4

for GMC Savana 2500 2018-2020 Base/LS/LT 4.3L V6

for GMC Savana 2500 2016-2017 Base/LS/LT 4.8L V8

for GMC Savana 2500 2016-2020 Base/LS/LT 6.0L V8

for GMC Savana 2500 2016 2018-2020 Base/LS/LT 6.0L V8 CNG

for GMC Savana 3500 2018-2020 Base/LS/LT 4.3L V6

for GMC Savana 3500 2016-2017 Base/LS/LT 4.8L V8

for GMC Savana 3500 2016-2020 Base/LS/LT 6.0L V8

for GMC Savana 3500 2016 2018-2020 Base/LS/LT 6.0L V8 CNG

for GMC Sierra 1500 2014-2018 Base/SLE 4.3L V6

for GMC Sierra 1500 2014-2018 Base/Denali/SLE/SLT 5.3L V8

for GMC Sierra 1500 2016-2018 SLT 5.3L V8 MILD HYBRID EV-GAS (MHEV)

for GMC Sierra 1500 2014-2018 Denali/SLT 6.2L V8

for GMC Sierra 1500 2014 Base SL

for GMC Sierra 1500 Limited 2019 Base/SLE 5.3L V8

for GMC Sierra 2500 HD 2019 Base/Denali/SLE/SLT 6.0L V8

for GMC Sierra 2500 HD 2019 Base/SLE/SLT 6.0L V8 CNG

for GMC Yukon 2015-2020 SLE/SLT 5.3L V8

for GMC Yukon 2015-2020 Denali 6.2L V8

for GMC Yukon 2019-2020 SLT 6.2L V8

for GMC Yukon XL 2015-2020 SLE/SLT 5.3L V8

for GMC Yukon XL 2015-2020 Denali 6.2L V8

for GMC Yukon XL 2019-2020 SLT 6.2L V8

for Buick Envision 2017-2020 Base/Essence/Preferred 2.5L L4

for Buick Regal 2014-2017 Base/GS/Premium 2.0L L4 Turbocharged

for Buick Regal 2017 Base 2.4L L4

for Buick Regal 2016-2017 Sport Touring 2.0L L4 Turbocharged

for Cadillac CTS 2016-2019 V 6.2L V8

for Cadillac Escalade 2015-2020 Base/Luxury/Platinum 6.2L V8

for Cadillac Escalade 2017-2020 Premium Luxury 6.2L V8

for Cadillac Escalade 2015-2016 Premium 6.2L V8

for Cadillac Escalade ESV 2015-2020 Base/Platinum 6.2L V8

for Cadillac Escalade ESV 2017-2020 Premium Luxury 6.2L V8

for Cadillac Escalade ESV 2015-2019 Luxury 6.2L V8

for Cadillac Escalade ESV 2015-2016 Premium 6.2L V8

Step-by-Step Installation Guide

Verify Compatibility-- Check that the sensor matches your vehicle’s specifications (model, year, engine type) to confirm compatibility

Disconnect Components--Trace the sensor’s wiring harness and disconnect both the electrical connector and the sensor itself

Tip: Turn off the engine and confirm the power supply is cut off before proceeding

Install the Sensor--Gently screw the sensor into the designated port. Confirm threads align smoothly for proper installation

Reconnect--Reattach the wiring harness to confirm signal integrity

Post-Installation Checks--Use an scanner to verify functionality and erase any stored error codes

Common Questions & Solutions

Q1: Why does the engine warning light activate?

Sensor malfunction,Physical damage, Short circuits,System imbalances or other problems

Q2: How to interpret engine warning alerts?

Not all alerts point to the sensor. Diagnostic codes (e.g., P0130-P0172) may relate to: Fuel delivery irregularities. Exhaust integrity problems (e.g., leaks in pipes or joints).Each trouble code represents a unique situation. We recommend carefully examining the code and investigating further to pinpoint the exact issue

Tip: For advanced diagnostics, consult a certified technician or use specialized tools