PISTON KIT 66 37MM

Cast Replica – Cast piston in original OE form

All pistons are heat treated with a T-5 hardening and tempering cycle

All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life

Cast piston kits are gravity-cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston

Replica pistons and all rings are OEM replacements

Replacement two-stroke piston rings sold individually; four stroke piston rings sold as a set