2021 BMW M850i Xdrive Serpentine Belt Parts
4 parts fit your 2021 BMW M850i Xdrive

Dayco
POLY RIB BELT, DAYCO Dayco 311-5070648Part #: 5070648
Fits 2021 BMW M850i Xdrive
✓ Secure checkout powered by AutoParts.com

Gates
Micro-V Serpentine Drive Belt Gates 547-K070649Part #: K070649
Fits 2021 BMW M850i Xdrive
✓ Secure checkout powered by AutoParts.com

Continental
Serpentine Belt Continental 232-4070648Part #: 4070648
Fits 2021 BMW M850i Xdrive
✓ Secure checkout powered by AutoParts.com

Acdelco
Serpentine Belt ACDelco 4-7K649Part #: 7K649
Fits 2021 BMW M850i Xdrive
✓ Secure checkout powered by AutoParts.com
Check local availability
Serpentine Belt on the 2021 BMW M850i Xdrive: what to know
What it does. On the 2021 BMW M850i Xdrive, this component drives engine accessories such as the alternator, water pump and air-conditioning compressor.
Symptoms that point to it
- Squealing on cold start
- Visible cracking or glazing
- Accessories losing power
Fitment. All 4 parts listed here are matched to the 2021 BMW M850i Xdrive in the AutoParts.com fitment catalog. Engine, sub-model and trim can narrow fitment further, so check those attributes on a part before ordering.
Price range. $16.99 to $31.99, supplied by AutoParts.com and subject to change.
Brands available. Dayco, Gates, Continental, Acdelco.
Affiliate disclosure: PartsByVehicle.com earns a referral fee when you buy through links to AutoParts.com on this site. This does not change the price you pay. Orders, payment, shipping and returns are handled by the retailer.