Closed Riser Gasket – Fits MerCruiser GM V6 & V8 5.0L-8.2L (Replaces 27-8637251, 27-860231) 4.4HP Please verify your model against

Please verify your model against the list to ensure correct fitment

1 x Drill bit

pay close attention to the serial number ranges to ensure correct fitment

and 60 HP four-stroke models

let it cool

Closed Riser Gasket – Fits MerCruiser GM V6 & V8 5.0L-8.2L (Replaces 27-8637251, 27-860231) 4.4HP Please verify your model againstProduct Details This Closed Riser Gasket is engineered for MerCruiser stern drives with GM V6 and V8 engines (5. 0L to 8. 2L, 305 502 CID) used in fresh water cooling systems. It is broadly compatible with models manufactured from approximately 1981 through the early 2000s, providing a reliable seal for closed riser connections. This part serves as a direct cross reference for Mercury MerCruiser, Sierra, GLM, OSCO, Mallory, and Barr part numbers,