This bearing kit helps mitigate common bearing wear issues resulting from extended use or exposure to saltwater conditions. It contributes to smoother engine transmission operation, while potentially reducing unwanted noises and vibrations, and may help prolong the overall service life of the drive system. Fits All OMC Cobra Sterndrives, All Mercruiser Sterdrives R/MR/Alpha one/Alpha One Gen II/ Bravo Drives,And Voolvo Penta Sx Drives Replaces part # 86300, 21906, 86560, 3852548 Package Includes: Everything shown in picture above: Gimbal Bearing Seals O-rings Product Application: The Heurofosh 3852548 bearing kit is engineered as a premium replacement solution for MerCruiser Alpha One and Alpha One Gen II sterndrive systems (1986-1993 models). It helps address bearing wear issues commonly caused by extended service periods or saltwater exposure, contributing to smoother drivetrain operation. When properly installed, it may significantly reduce metallic friction noise and abnormal vibrations, potentially improving transmission efficiency and extending engine service life. Suitable for both routine maintenance and repair scenarios, this bearing kit offers reliable protection for your marine propulsion system. Oil Seal 3852548 Gimbal Bearing 3853807 Seal 3852560 O-ring 3852565 *2