What it does. Ngk NGK Iridium IX Spark Plug NGK 481-4344 delivers the spark that ignites the air-fuel mixture in the cylinder.

Fitment. Catalogued as fitting 2019–2025 Chevrolet Silverado 1500, 2021–2025 GMC Savana 2500, 2020–2025 Chevrolet Silverado 3500 Hd, 2020–2025 GMC Yukon Xl, 2019–2025 Chevrolet Express 3500, 2019–2025 Chevrolet Tahoe, 2021–2025 Chevrolet Express 2500, 2020–2025 GMC Yukon, 2019–2025 Chevrolet Suburban, 2023–2025 Ford Escape, 2019–2025 Cadillac Escalade, 2021–2024 Chevrolet Silverado 2500 Hd, 2021–2024 Cadillac Escalade Esv, 2019–2024 GMC Savana 3500, 2020–2023 GMC Sierra 3500 Hd, 2021–2023 GMC Sierra 2500 Hd, 2019–2022 GMC Sierra 1500, 2022 GMC Sierra 1500 Limited, 2022 Cadillac Ct5, 2020–2022 Chevrolet Colorado, 2019–2021 GMC Canyon, 2020–2021 Chevrolet Blazer, 2020 Lincoln Mkz, 2019–2020 GMC Acadia, 2019 Ford Ssv Plug In Hybrid, 2019 Chevrolet Silverado 1500 Ld, 2019 Buick Lacrosse, 2019 Buick Envision, 2019 Chevrolet Corvette, 2019 Chevrolet Impala. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.