![hauptlagerschalen_neuLZT3zpVZ8CctcfGzopswx8idAlxqxbSgYPAr0h5 ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/c0/51/ef/1669286106/hauptlagerschalen_neulzt3zpvz8cctcfgzopswx8idalxqxbsgypar0h5.jpg)
![Bearinglayers_00226FDot7gE0ZKANFDrXeZLbTDih ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/87/e5/03/1669284944/bearinglayers_00226fdot7ge0zkanfdrxezlbtdih.jpg)
![hauptlagerschalen_neuLZT3zpVZ8CctcfGzopswx8idAlxqxbSgYPAr0h5 ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/c0/51/ef/1669286106/hauptlagerschalen_neulzt3zpvz8cctcfgzopswx8idalxqxbsgypar0h5.jpg)
![Bearinglayers_00226FDot7gE0ZKANFDrXeZLbTDih ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/87/e5/03/1669284944/bearinglayers_00226fdot7ge0zkanfdrxezlbtdih.jpg)
![hauptlagerschalen_neuLZT3zpVZ8CctcfGzopswx8idAlxqxbSgYPAr0h5 ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/c0/51/ef/1669286106/hauptlagerschalen_neulzt3zpvz8cctcfgzopswx8idalxqxbsgypar0h5.jpg)
![Bearinglayers_00226FDot7gE0ZKANFDrXeZLbTDih ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/87/e5/03/1669284944/bearinglayers_00226fdot7ge0zkanfdrxezlbtdih.jpg)
![hauptlagerschalen_neuLZT3zpVZ8CctcfGzopswx8idAlxqxbSgYPAr0h5 ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/c0/51/ef/1669286106/hauptlagerschalen_neulzt3zpvz8cctcfgzopswx8idalxqxbsgypar0h5.jpg)
![Bearinglayers_00226FDot7gE0ZKANFDrXeZLbTDih ACL Race Main Bearings fitting BMW S65B40 and S85B50](https://www.bar-tek.com/media/1920x1920/87/e5/03/1669284944/bearinglayers_00226fdot7ge0zkanfdrxezlbtdih.jpg)
![](https://www.bar-tek.com/bundles/fourtwosixrelaunchtheme/img/finishpage-newsletter-img.webp)
ACL Race Main Bearings fitting BMW S65B40 and S85B50
- Racing Bearings
- fitting for BMW
- S65, S85
- Plug and Play
![](https://www.bar-tek.com/bundles/fourtwosixrelaunchtheme/img/finishpage-newsletter-img.webp)
- Description
- Fits for
- Videos
- Questions about the product
- Reviews
- Blog Posts
- Accessories
Racing Main bearings for BMW S65 and S85 Engines
Main bearings are subject to high wear and should be replaced regularly. ACL bearings can withstand higher loads than stock bearings. The bearing material is specially manufactured for higher loads and has increased contact pressure.
As a result, these bearings tend to twist less in the bearing seat. The ovality of the bearings is increased in order to achieve better lubrication at higher speeds.
Particularly recommended for tuned engines and for use in track-oriented vehicles.
Engine | Engine code |
---|---|
M3 | S65B40 | 420 hp (309 kW) |
Engine | Engine code |
---|---|
M5 | S85B50 | 507 hp (373 kW) |
Engine | Engine code |
---|---|
M6 | S85B50 | 507 hp (373 kW) |
![](https://www.bar-tek.com/media/76/bb/4a/1721305052/bartek-2-150x150.jpg)
![](https://www.bar-tek.com/media/02/39/2f/1721304928/eric-150x150.webp)
![](https://www.bar-tek.com/media/09/44/45/1721304961/jerome-150x150.webp)
![](https://www.bar-tek.com/media/95/64/c3/1721304738/mario-150x150.webp)
![](https://www.bar-tek.com/media/51/97/75/1721304772/gert-150x150.webp)
Accessories
Racing Main bearings for BMW S65 and S85 Engines
Main bearings are subject to high wear and should be replaced regularly. ACL bearings can withstand higher loads than stock bearings. The bearing material is specially manufactured for higher loads and has increased contact pressure.
As a result, these bearings tend to twist less in the bearing seat. The ovality of the bearings is increased in order to achieve better lubrication at higher speeds.
Particularly recommended for tuned engines and for use in track-oriented vehicles.
Engine | Engine code |
---|---|
M3 | S65B40 | 420 hp (309 kW) |
Engine | Engine code |
---|---|
M5 | S85B50 | 507 hp (373 kW) |
Engine | Engine code |
---|---|
M6 | S85B50 | 507 hp (373 kW) |
![](https://www.bar-tek.com/media/76/bb/4a/1721305052/bartek-2-150x150.jpg)
![](https://www.bar-tek.com/media/02/39/2f/1721304928/eric-150x150.webp)
![](https://www.bar-tek.com/media/09/44/45/1721304961/jerome-150x150.webp)
![](https://www.bar-tek.com/media/95/64/c3/1721304738/mario-150x150.webp)
![](https://www.bar-tek.com/media/51/97/75/1721304772/gert-150x150.webp)
Accessories