Keep Summer Going Strong with our August Sale Savings up to 50% OFF!

Upper Gear Kit - 18-6351 - Sierra

Save 16% Off.
Upper Gear Kit - 18-6351 - Sierra
Savings Sale Price: $354.13
Save: $69.87
(16% Off $424.00)
Part # 18-6351 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 13 hrs 5 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
This item is found in the following Product Families
Mercury Marine 43-18411A2 replacement parts
Mercruiser Alpha One/ Gen II Sterndrive Drive Shaft Housing Components Exploded View
Mercruiser Sterndrive Drive Shaft Housing Components Exploded View Diagram and Parts Fits Alpha One / Gen II Figure # Description O.E.M. # Sierra # 1 …
Upper Gear Kit - Sierra
Replaces OEM part #
  • MERCURY MARINE 43-853641A2
For: Mercruiser Alpha I (Gen II) (1998-up) Serial Number range 0L100040-UP, for gear ratios 1.47:1 (20-22 Teeth).
Ask a question for
Question & Answer Guidelines
This product ships in 1 business day.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Do you need Professional Installation? has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer:
Save More Now and Keep the Summer of Boating Fun Going Strong!