DetailsSBT pistons for Kawasaki jet ski's are high quality, high strength, cast eutectic pistons. Standard pistons feature an anodized crown for improved heat resistance and surface strength, with graphite-coated skirts to reduce friction and promote efficient break-in. All pistons include a LIFETIME warranty against manufacturer defects.Piston kit includes piston, complete set of steel rings, cir-clips, and piston pin.Note: Will not work on reed port motors (1991–1995). Replacement for piston port motors (1982–1990).Replaces OEM part(s): 13001-2094, 13001-3020, 13001-3023, 13029-3004.Application Guide 550 SX (1990) JS550 (1982-1989) Fitment Year Make Model 1982 Kawasaki JS550 1983 Kawasaki JS550 1984 Kawasaki JS550 1985 Kawasaki JS550 1986 Kawasaki JS550 1987 Kawasaki JS550 1988 Kawasaki JS550 1989 Kawasaki JS550 1990 Kawasaki 550 SX
