About this part
What it does. Dayco POLY RIB BELT, DAYCO Dayco 311-5050420 drives engine accessories such as the alternator, water pump and air-conditioning compressor.
Symptoms that point to this part
- Squealing on cold start
- Visible cracking or glazing
- Accessories losing power
Fitment. Catalogued as fitting 2020–2026 Cadillac Ct4, 2021–2025 Cadillac Xt6, 2020–2025 Chevrolet Blazer, 2020–2025 Cadillac Xt5, 2024–2025 Buick Envision, 2022–2025 Cadillac Xt4, 2021–2023 GMC Acadia, 2020–2023 Cadillac Ct5, 2019 Cadillac Ct6. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.
Fits these vehicles
- 2026 Cadillac Ct4
- 2025 Cadillac Xt6
- 2025 Chevrolet Blazer
- 2025 Cadillac Xt5
- 2025 Buick Envision
- 2025 Cadillac Xt4
- 2024 Buick Envision
- 2024 Cadillac Xt4
- 2024 Cadillac Xt5
- 2023 Cadillac Xt5
- 2023 GMC Acadia
- 2023 Cadillac Ct4
- 2023 Cadillac Ct5
- 2023 Chevrolet Blazer
- 2022 Cadillac Xt5
- 2022 Cadillac Ct5
- 2022 Cadillac Ct4
- 2022 Cadillac Xt4
- 2022 Cadillac Xt6
- 2022 Chevrolet Blazer
- 2021 Cadillac Ct5
- 2021 Cadillac Ct4
- 2021 GMC Acadia
- 2021 Cadillac Xt5
- 2021 Cadillac Xt6
- 2020 Cadillac Xt5
- 2020 Cadillac Ct5
- 2020 Cadillac Ct4
- 2020 Chevrolet Blazer
- 2019 Cadillac Ct6