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BMW
Mini
This product was last offered at the strikethrough price on
04-06-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
Is your BMW making a chirping or grinding noise at idle? The culprit is frequently a failing alternator decoupler pulley. Unlike a traditional solid pulley, this Overrunning Alternator Pulley (OAP) allows the alternator rotor to "freewheel" when engine speeds drop suddenly. This specialized function protects your BMW drive belt and belt tensioner from excessive snap-back, vibration, and "belt slap."
Prevent Catastrophic Engine Failure
Over time, the internal clutch mechanism can seize or slip, leading to accelerated wear or total serpentine belt failure. On BMW engines, a snapped belt can be ingested through the front main seal, causing catastrophic engine damage. Replacing this pulley is a cost-effective preventative maintenance step that restores smoothness to your accessory drive without the high cost of a complete alternator replacement.
Features & Benefits:
Lowers the load on the drive belt, tensioner, and AC compressor.
Stops "belt slap" and rhythmic chirping noises during deceleration and idle.
Direct Replacement with high-quality construction ensures perfect fitment and long-term durability.
Essential Maintenance for N52 engines
This product was last offered at the strikethrough price on
05-30-2026
This product was last offered at the strikethrough price on
05-30-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
Improve engine performance and reduce vibrations with the MINI Crank Pulley With Dampener - R5X R6X. This pulley-driven unit is designed to smooth out rotational vibrations from the crankshaft, ensuring smoother engine operation. When the pulley wears out or dries out, you may notice unusual noises near the passenger's side oil pan, indicating the need for replacement.
For optimal results, it's recommended to replace the hex bolts along with the crank pulley.
Upgrade your MINI's engine performance and reduce vibrations with the MINI Crank Pulley With Dampener - R5X R6X.