These rings will fit all OMC 150 HP 78-91 Cross Flow 4 Cyl.WSM Rings are top quality RIK Japanese high performance rings. Will fit OEM factory pistons.
Wiseco rings will fit Wiseco forged piston only.
O.E. No. 394930
Ring set includes:
1 Top ring
1 Bottom ring
This ring set will fit the following applications only,
150 HP 78-91 Cross Flow4 Cyl.
