Upper Unit Gear Set - Sierra

Blowout
Save 28% Off.
Upper Unit Gear Set - Sierra
Sale Price: $216.89
Save: $87.11
(28% Off $304.00)
Part # 18-2205
No Reviews | Write Review
Replaces OEM part #
  • MERCURY MARINE 43-55778A3
For:
    120/140 (S/N 2791957 & UP) and Gen II (S/N K999999 & BELOW) with 1.98:1 Gear Ratio (Drive Gear = 20 teeth Driven Gear = 24 teeth).
No Review for Upper Unit Gear Set - Sierra
Be the first to Write a Review

This product ships in 1 business day.

To determine the shipping cost and estimated delivery date for this item click Add to Cart, then click Calculate Shipping inside your shopping cart.
Standard Shipping Policies
Do you need Professional Installation? iboats.com has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer:

Product Families

Mercury Marine 43-18411A2 replacement parts
    Mercruiser Sterndrive I/I-R/MR/Alpha One Drive Shaft Housing Components Exploded View
      Mercruiser Sterndrive Typical Drive Shaft Housing Components Exploded View Diagram and PartsFits I / I-R / MR / Alpha One (Typical) Figure # …
      Mercruiser Alpha One/ Gen II Sterndrive Drive Shaft Housing Components Exploded View
        Mercruiser Sterndrive Drive Shaft Housing Components Exploded View Diagram and PartsFits Alpha One / Gen II Figure #DescriptionO.E.M. #Sierra # …
        Mercury Marine 43-55778A3 replacement parts
          MEMORIAL DAY SPECIAL!
          Discounted 2nd Day Air - Get Your Order FAST!
          Hurry, ends June 2nd
          MEMORIAL DAY SPECIAL!
          Discounted 2nd Day Air - Get Your Order FAST!
          Hurry, ends June 2nd