Sierra 18-2258 Upper Gear Kit Replaces 43-803114T1

Sierra 18-2258 Mercruiser 1.84:1 Upper Unit Gear Set

Sierra replacement upper unit gear set with Mercruiser Stern Drives. For 6 Cylinder Engines (470/485) with a 1.84:1 Gear Ratio.

• Ratio: 1.84:1
• Drive Gear: 17 teeth
• Driven Gear: 19 teeth
• For: V-6 (470/485)

Set Contains:

• (1) 18-1160 Drive Bearing Kit
• (1) 18-1161 Tapered Roller Bearing
• (1) 18-1165 Tapered Roller Bearing
• (1) 18-2204 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

Interchangeable with:

• GLM
• 11235
• Mercruiser Stern Drive
• 43-803114T1

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

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