[Vehicle Fitment-1]: To avoid return troubles, use "Amazon Confirmed Fit" to check compatibility and read the post-search "Note" carefully. Don't buy if specs don't match: Compatible with Chevrolet Silverado 1500 2014-2023, Silverado 1500 LD 2019, Silverado 1500 LTD 2022, Silverado 2500 3500 HD 2020-2023, Suburban/Tahoe 2015-2024; Fit For GMC Sierra 1500 2014-2023, Sierra 1500 Limited 2019 2022, Sierra 2500 3500 HD 2020-2023, Yukon/Yukon XL 2015-2023 --- AC Belt; Installation Tool Required [Vehicle Fitment-2]: Compatible with Cadillac Escalade/Escalade ESV 2015-2020 V8 6.2L FLEX, Escalade/Escalade ESV 2015-2022 V8 6.2L GAS --- Location: Air Conditioning; Installation Tool Required [Specifications]: ①Belt Material: EPDM; ②Cord Material: Polyester; ③Cross Section Designation: K; ④Effective Length (Inch): 33.78; ⑤Outside Circumference (Inch): 34.375; ⑥Rib Quantity: 4; ⑦Top Width (Inch): 0.56; ⑧Reference Number: 12637349, 12658178, K040337SF [Installation Tip]: Stretch Fit belts, made from EPDM material known for its strong resistance to both temperature and corrosion, appear shorter than their designed operational length prior to installation and require a dedicated tensioning tool for proper fitting. Once installed, they automatically self-tighten without manual intervention, ensuring consistent optimal performance [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted engine serpentine drive belt. We offer a wide variety of automotive accessory categories, including replacements, ensuring that you can hit the road with peace of mind

A-premium Belts are an ideal choice to replace your broken Belts. All Belts meet or exceed OEM specifications. Due to high manufacturing standard, it will come with one year quality guarantee.

Compatible with Cadillac Models:
2015-2020 Escalade V8 6.2L FLEX A.C
2015-2022 Escalade V8 6.2L GAS A.C

Compatible with Chevrolet Models:
2014-2018 Silverado 1500 V6 4.3L FLEX A.C
2014-2021 Silverado 1500 V6 4.3L GAS A.C
2014-2021 Silverado 1500 V8 5.3L FLEX A.C
2014-2023 Silverado 1500 V8 5.3L GAS A.C
2023-2023 Silverado 1500 V8 5.3L FLEX A.C
2014-2021 Silverado 1500 V8 6.2L GAS A.C
2022-2022 Silverado 1500 V8 6.2L GAS A.C
2023-2023 Silverado 1500 V8 6.2L GAS A.C
2020-2023 Silverado 2500 HD V8 6.6L GAS A.C

Compatible with GMC Models:
2014-2018 Sierra 1500 V6 4.3L FLEX A.C
2019-2021 Sierra 1500 V6 4.3L GAS A.C
2014-2021 Sierra 1500 V8 5.3L FLEX A.C
2015-2023 Sierra 1500 V8 5.3L GAS A.C
2016-2018 Sierra 1500 V8 5.3L EV-GAS A.C
2023-2023 Sierra 1500 V8 5.3L FLEX A.C
2014-2023 Sierra 1500 V8 6.2L GAS A.C

OEM Number: K040337SF, 12637349, 12658178
Location: Air Conditioning
Quantity Sold: One Piece
Note: The belt's Effective Length is 33.78 inch; 2016-2018 GMC Sierra 1500 5.3L V8 EV-GAS Fit MHEV(Mild Hybrid Electric Vehicle)