U Joint Yoke Oil Seal – Fits MerCruiser Bravo I II III Blackhawk (Replaces 26-807006, 26-18816, 86730) GMC This seal should be replaced

This seal should be replaced whenever the gimbal bearing is replaced

It is also good practice to replace them during any major transmission or pump overhaul to ensure system integrity

Brand Part Number Johnson/Evinrude 377178 / 0377178 / 775519 / 0775519 / 777833 Sierra 18-3003 GLM 89670 Mallory Marine 9-45218 / 9-45218-10 SEI Marine 96-361-03BE CEF 500349

and perform a final leak inspection

especially on startup or when turning

U Joint Yoke Oil Seal – Fits MerCruiser Bravo I II III Blackhawk (Replaces 26-807006, 26-18816, 86730) GMC This seal should be replacedProduct Details This U Joint Yoke Oil Seal is designed for MerCruiser Bravo I, II, III, and Blackhawk sterndrives from 1988 and up. Compatible with Bravo I, Bravo II, and Bravo III models beginning at serial range 0B664190 & Up, as well as Blackhawk units from 19941995 (serial range 0F186717 & UP), this seal delivers reliable protection for your sterndrive's U joint yoke assembly. Direct replacement for OEM part numbers 26 807006, 26 18816, and 86730,