Sierra 18-2381 Upper Drive Unit Cap

Sierra 18-2381 Mercruiser Alpha I Upper Drive Unit Cap

Sierra high-quality replacement engine parts are designed to meet OEM specifications. 

• For s/n 6225577 & Later Alpha I, except Gen II

Interchangeable with:

• GLM
• 28400
• Mallory
• 9-78121
• Mercruiser Stern Drive
• 94998A2
• 94998A4
• 94998A1
• 94998A3

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov