These rings will fit all Mercury V-6 Cyl. 135 HP 2.5L OptiMax. WSM Rings are top quality RIK Japanese high performance rings. Will fit OEM factory pistons.
Wiseco rings will fit Wiseco forged piston only.
Ring set includes:
1 Top ring
1 Bottom ring
O.E. No. 853306A12
This ring set will fit the following applications only,
Mercury V-6 Cyl. 135 HP 2.5L OptiMax
Serial #'s OG590000- OG96499
