Alpina B7 Supercharger COMPLETE Rebuild Kit
If you are experiencing excessive supercharger pulley noise, wobbling or screeching - you most likely need to replace your pulley/clutch bearings. Alpina recommends clutch bearing replacement every 60,000 miles (100,000 km).
The impeller shaft bearings are a critical component for ensuring smooth rotation of the impeller up to 90,000 RPM. Worn bearings can cause the impeller to vibrate or wobble leading to impeller contacting the supercharger housing and causing the blades to crack or wear out due to abrasion. It is critical to service and replace the impeller shaft bearings especially if the vehicle has over 60,000 miles (100,000 km).
Alpina B5/B6/B7 supercharger clutch bearings used to be available from BMW as part of serviceable kit (p/n: 11657973081). Unfortunately, they have been discontinued and are no longer available. We offer original-spec OEM Clutch Bearings and the Installation Tool for purchase.
This item includes:
- Oil seal kit (9x oil seals, complete internal hardware kit, threadlocker)
- 2x OEM supercharger Clutch Bearings
- 1x supercharger ClutchBearing Installation Tool (required for removing and installing the supercharger clutch for servicing and bearing replacement)
- 2x OEM Impeller Shaft Bearings (High-precision ABEC7 impeller shaft bearings with partially crystalline PEEK-carbon fiber reinforced cage rated to 250C (482F)
- 1x Precision-machined Impeller Bearing Installation Tool
- Fits all supercharged Alpina B5/B6/B7 models.
- Feel free to contact us with any questions or inquiries
- See our website for DIYvideos and discounted pricing!
Worldwide shipping of original-spec OEM replacement parts to maintain your Alpina supercharger and ensure longevity for years to come.We've been supporting the Alpina community with supercharger rebuild services and replacement parts since 2014.
Please see our other Alpina Superchargeritems!
