Includes outdrive mounting gasket & o-rings for Mercruiser I, R, MR, Alpha One & Gen II stern drives.

• Sierra Mercruiser outdrive mounting gasket set
• For Mercruiser I, R, MR, Alpha One, and Gen II drive units from 1983-newer
• Replaces Mercruiser 27-64818A3, 27-94996Q2, 27-94996T2
• Replaces Mallory 9-60600, 9-62601
• Replaces Sierra 18-2619