The wsm platinum series piston kit for polaris big boss 250 4x6 1989-1992 standard is part of the latest collection from wsm.Features: quality and construction that meets or exceeds oem skirts have a nonabrasive, expansion-retarding mos2 molydenum disulfide coating to reduce heat and friction for added power and longevity mos2 coating actually draws heat through piston walls and out the bottom specially hardened tops add strength to ring grooves features improved e-clip design order one per cylinder.Kit includes: â platinum series piston â wrist pin â ring set â circlipsspecifications: bore
Oversize metric: standard bore
Oversize: standard bore size metric: 72.00 Mm bore size: 72.00 Mm engine type: 2-stroke model: platinum series piston material: aluminum product name: piston kit research value: finalized riding style: atv skirt coating: moly coated units: kit to fit: polaris big boss 250 1989 american models polaris big boss 250 1990 american models polaris big boss 250 1991 american models polaris big boss 250 1992 american models polaris big boss 250 1993 american models polaris scrambler 250 2x4 1985 american models polaris scrambler 250 2x4 1986 american models polaris startrak 250 1987 all models polaris startrak 250 1988 all models polaris startrak 250 1989 all models polaris startrak 250 1990 all models polaris star 250 1983 all models polaris star 250 1984 all models polaris star 250 1985 all models polaris star 250 1986 all models polaris star 250 1987 all mod...