What it does. Dayco POLY RIB BELT, DAYCO Dayco 311-5060785 drives engine accessories such as the alternator, water pump and air-conditioning compressor.

Fitment. Catalogued as fitting 2021–2026 Ford Police Interceptor Utility, 2021–2026 Ford Explorer, 2021–2025 GMC Sierra 2500 Hd, 2019–2025 Chevrolet Express 3500, 2020–2025 Lincoln Aviator, 2020–2025 Chevrolet Silverado 3500 Hd, 2019–2025 GMC Savana 3500, 2020–2024 GMC Sierra 3500 Hd, 2020–2024 Chevrolet Silverado 2500 Hd, 2019–2024 GMC Savana 2500, 2022–2023 Cadillac Ct4, 2021 Chevrolet Express 2500, 2019 Cadillac Cts, 2019 Cadillac Ats. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.