ACL Race Series Main Bearings for Mazda 4 B6/BP/BP-T Standard Size Extra Oil ...

ACL Race Series Main Bearings for Mazda 4 B6/BP/BP-T — Standard Size, Extra Oil Clearance High-performance main bearings engineered by ACL for Mazda 4-cylinder B6/BP/BP-T engines. These Race Series bearings are standard journal size with extra oil clearance to support aggressive cam profiles, high RPM operation and forced induction setups. Fitment: Mazda 4 B6 / BP / BP-T engines Series: ACL Race Series — track-proven performance Size: Standard journal diameter Clearance: Extra oil clearance for superior oil film control under extreme conditions Application: High RPM, race, modified and forced-induction builds Manufactured to strict tolerances with premium bearing materials, these ACL mains increase durability and reduce risk of seizure during sustained high-load operation. Ideal for engine builders and racers seeking reliable, precise bearing performance. Benefits: improved oil flow, enhanced fatigue resistance, consistent clearances and easier break-in for modified engines. Choose ACL Race Series main bearings to protect your bottom end and keep power on the track.