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

2 Ring Standard Bore Inline Piston Kit - 18-4620 - Sierra

Save 28% Off.
2 Ring Standard Bore Inline Piston Kit - 18-4620 - Sierra
Savings Sale Price: $102.59
Save: $40.36
(28% Off $142.95)
Part # 18-4620 ValueShip™ Eligible
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 780-9229A7
    40-50 HP, 4 Cyl., 2.565/std bore
    18-4620 Piston - replaces O.E.# 780-9229A7
    18-3966 Piston Ring -replaces O.E.# 39-18653A12
    Wrist Pin ( Not Sold Separately)
    18-4294 Circlips - replaces O.E.#40-52035
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!