About this part
What it does. Dayco POLY RIB BELT, DAYCO Dayco 311-5040430 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 2019–2026 Porsche Cayenne, 2021–2025 Audi S8, 2019–2025 Porsche Panamera, 2020–2025 Audi Rs Q8, 2021 Audi A8 Quattro. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.
Fits these vehicles
- 2026 Porsche Cayenne
- 2025 Audi S8
- 2025 Porsche Panamera
- 2025 Audi Rs Q8
- 2024 Porsche Cayenne
- 2024 Audi S8
- 2024 Audi Rs Q8
- 2023 Porsche Cayenne
- 2023 Porsche Panamera
- 2022 Audi Rs Q8
- 2022 Audi S8
- 2021 Audi A8 Quattro
- 2021 Audi S8
- 2021 Porsche Panamera
- 2021 Audi Rs Q8
- 2020 Audi Rs Q8
- 2020 Porsche Cayenne
- 2020 Porsche Panamera
- 2019 Porsche Panamera
- 2019 Porsche Cayenne