Problem Solver Oxygen O2 Sensor Upstream & Downstream Compatible With Chevy Silverado 1500 2500 3500 Blazer Camaro Impala Malibu Gmc Buick Cadillac 2.5 4.3 4.8 6.0l 2013-2024 4pcs#234-4940 234-4974 Save Big: 60% Off [XZN9gAzo]

Compatible with Chevrolet/Chevy: Blazer 2019-2021 2.5L L4; Camaro 2017-2024 6.2L L4; Impala 2014-2019 2.5L L4; LCF 3500 2018-2020 Base 6.0L V8; Malibu 2013-2015 2.0L L4, Limited 2016 2.5L L4; Silverado 1500 2014-2018 4.3L V6, 5.3L V8; Silverado 1500 LD 2019 5.3L V8 Silverado 2500/3500 HD 2016-2019 6.0L V8, 6.0L V8 CNG; Express 2500/3500 2016-2020 4.3L V6, 4.8L V8, 6.0L V8, 6.0L V8 CNG; Suburban 2015-2020 5.3L V8; Suburban 3500 HD 2016-2019 6.0L V8; Tahoe 2015-2020 5.3L V8, 6.2L V8;

Compatible with GMC/Buick: Acadia 2017-2021 2.5L L4; Savana 2500/3500 2016-2020 4.3L V6, 4.8L V8, 6.0L V8, 6.0L V8 CNG; Sierra 1500 2014-2018 4.3L V6, 5.3L V8, 6.2L V8; Sierra 1500 Limited 2019 5.3L V8; Sierra 2500 HD 2019 6.0L V8,6.0L V8 CNG; Yukon/Yukon XL 2015-2020 5.3L V8,6.2L V8; Buick Envision 2017-2020 2.5L L4; Buick Regal 2014-2017 2.0L L4, 2.4L L4

Compatible with cadillac: Cadillac CTS 2016-2019 V6.2L V8; Cadillac Escalade/ Escalade ESV 2015-2020 6.2L V8

Replaces OE Number: 234-4940 234-4974

Features: Pack list :2PCS*Upstream( 234-4940), Total length: 19.31 Inch; 2PCS*Downstream (234-4974), Total length: 17.34 Inch

High performance: Real-time monitoring and feedback of the oxygen content in the exhaust gas to adjust the engine fuel ratio, improve combustion efficiency and fuel economy.

Note: The oxygen sensor is divided into upstream and downstream positions. Please check whether the installation position is correct before installation