Rings, Piston - Mercury 3-ring 35-150hp Crossflow
Standard Bore Size is 2.875
These rings are sold by a set of 3. Qty 1 will do one piston.
Available sizes STD, .015" & .030" Oversize. To order, select the size desired from the dropdown (under "product options") then enter the quantity and click "add to cart". Most standard and oversize rings are in stock however some sizes may be on a short backorder from time to time. Please don't hesitate to contact us for assistance.
35-150hp Crossflow w/ 3-Ring Pistons
May fit additional models to those listed above. Please DO NOT order based solely on application info above. You MUST compare the oem number of the part for your engine to those listed below to ensure correct fitment of this part for your application! Please also verify the number of rings on your existing piston. Failure to order this way will likely lead to the wrong part being ordered!
Replaces: 39-788164A12, 39-45155A12, 39-45204A12, 39-78811A12, 39-88392A12, 18-3902, 18-3916, 18-3917