116mm. Pulley only, pump not included. Aluminum alternative for factory plastic pulley.
2X Entries Into Our F80 M3 Sweepstakes
116mm. Pulley only, pump not included. Aluminum alternative for factory plastic pulley.
2X Entries Into Our F80 M3 Sweepstakes
A/C belt for your BMW
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-09-2026
Complete tensioner assembly with roller
Provides a smooth tensioner movement
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-09-2026
Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems. Features NTN bearing.
2X Entries Into Our F80 M3 Sweepstakes
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Keep your BMW running at peak performance with the OEM INA Accessory Belt. A dependable solution engineered for lasting function and factory precision.
Seals the front of the pulley from debris
A/C belt for your BMW
For dependable operation and peace of mind, trust the INA Serpentine Belt from ECS Tuning, a smart choice for preventative maintenance and long-term reliability in your BMW.
Replacement 4PK863 accessory belt
5X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
09-11-2026
Reduces vibrations and connects accessories
2X Entries Into Our F80 M3 Sweepstakes
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Eliminate squelling with a brand new accessory belt
5X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
08-25-2026
We Price Match - Give Us A Call or Chat!
Complete tensioner assembly with roller
We Price Match - Give Us A Call or Chat!
A common failing piece due to the plastic design.
10X Entries Into Our F80 M3 Sweepstakes
Upgrade your harmonic balancer!