Sierra 18-2257 Upper Gear Kit

Sierra 18-2257 Mercruiser 1.65:1 Upper Gear Kit

Sierra replacement Upper Gear Kit for Mercruiser Inline 6 Cylinder Engines with a 1.65:1 Gear Ratio.

• Ratio: 1.65:1
• Driver Gear: 24 teeth
• Driven Gear: 24 teeth
• For: 6 cyl. inline engines

Kit Contains:

• (1) 18-1160 Drive Bearing Kit
• (1) 18-1161 Tapered Roller Bearing
• (1) 18-1165 Tapered Roller Bearing
• (1) 18-2203 Upper Unit Gear Set
• (1) 18-2619-1 Outdrive Gasket Set
• (1) 18-2648 Upper Unit Seal Kit
• (1) 18-2743 Outdrive Mounting Gasket
• (1) 18-2820 Outdrive Gasket

Application:

Mercruiser Stern Drive

• R/MR/Alpha One (Sterndrive)
• 1983-1991
• s/n 6225577 thru 0D469858
• R/MR/Alpha One (Transom Assembly)
• 1983-1991
• s/n 6216687 thru 0D469858

Interchangeable with:

• GLM
• 11225
• Mercruiser Stern Drive
• 43-803112T1

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