These rings will fit all Mercury V-6 Cyl. 135 HP 2.0L 81-91 W/Boost Port Bottom Guided . 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. 93481A12
This ring set will fit the following applications only,
Mercury V-6 Cyl. 135 HP 2.0L 81-91 W/Boost Port Bottom Guided