Genuine BMW Main Bearings S63 S63TU - F10 F12 F13 F85 F86 M5 M6 X5M X6M

These are Genuine BMW main bearings for the S63 engine. With purchase of this bearing set we include custom bearing sizing for you if you provide us with the letters listed on your specific crankshaft and block. This information is required to properly size Genuine BMW bearings on the S63 engine. Please see photos for what this information looks like on the block and crankshaft. Contact us if you have any questions. If you are unable to provide this information we will spec the loosest bearing combination available for safety. As with all bearings, check your tolerances and size before installation. Due to the specialized tools needed, professional installation is recommended.There are no returns available on any engine bearings. Watch this video to see how to find which main bearings you will need: