4th of JULY SALE - Save an Extra 10-50% Off!
Fantastic Savings Everywhere!

Mariner 3 Ring .015 OS Bore Inline Piston Rings

Save 26%-50% Off.
3 Ring .015 Os Bore Inline Piston Rings - 18-3916 - Sierra
Meltdown Sale Price: $17.09
Save: $6.20
(26% Off $23.29)
Part # 18-3916 ValueShip™ Eligible
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 39-78811A12
Mallory Ring Set .030 9-54219
Meltdown Sale Price: $14.53
Save: $14.96
(50% Off $29.49)
Part # 9-54219 ValueShip™ Eligible
No Reviews | Write Review | Ask Question
Replaces GLM #:14220
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):39-817096A26
Fits Application:2.875" Bore
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
Gear up for Summer Boating.
Extra 10-50% Savings during the 4th of July Sale!