A-Premium Iridium Platinum Spark Plugs Compatible with Chevrolet Silverado 1500, 2500/3500 HD, Tahoe, Camaro, Suburban, Corvette & GMC Sierra 1500, Yukon, Yukon XL & Cadillac Escalade, Pack of 8

[Reference Number]: 91418, ILTR5E11, 12598004, 12622441, 12625058, 3474. [Vehicle Fitment-1]: Compatible with Cadillac Escalade 2015-2020 V8 6.2L, Escalade 2021-2023 V8 6.2L, Escalade ESV 2015-2020 V8 6.2L, Escalade ESV 2021-2023 V8 6.2L; Compatible with Chevrolet Camaro 2016-2020 V8 6.2L, Corvette 2014-2019 V8 6.2L, Silverado 1500 2014-2023 V8 5.3L, Silverado 1500 2014-2023 V8 6.2L, Silverado 1500 LD 2019-2019 V8 5.3L, Silverado 2500 HD 2020-2023 V8 6.6L, Silverado 3500 HD 2020-2023 V8 6.6L, Suburban 2015-2023 V8 5.3L, Suburban 2019-2023 V8 6.2L. [Vehicle Fitment-2]: Compatible with Chevrolet Suburban 3500 HD 2019-2019 V8 6.0L, Tahoe 2015-2023 V8 5.3L, Tahoe 2018-2023 V8 6.2L; Compatible with GMC Sierra 1500 2014-2023 V8 5.3L,Sierra 1500 2014-2023 V8 6.2L, Sierra 1500 Limited 2019-2019 V8 5.3L, Sierra 1500 Limited 2022-2022 V8 5.3L/6.2L, Sierra 2500 HD 2020-2023 V8 6.6L, Sierra 3500 HD 2020-2023 V8 6.6L, Yukon 2015-2020 V8 5.3L/6.2L, Yukon XL 2015-2020 V8 5.3L/6.2L. [Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.044; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 53.00; ⑦Reach (mm): 25.00; ⑧Thread Diameter (MM): 14. [Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles