The patented super camber s-i-j-k-h series with the rubber seal are even more streamlined Drag is reduced for the impeller while increasing volumetric flow of the pump at the same time making the soles super camber series arguably the best in the PWC market FIT GUIDE COUNTRY OF ORIGINTW PRODUCT FITMENT This item fits the following applications: Kawasaki JS550A 550 Jet Ski 1982-1988 Kawasaki JS550A 550 SX Jet Ski 1989-1995 Kawasaki JS550B 550 SX Jet Ski 1989-1995 Kawasaki JS550C 550 SX Jet Ski 1989-1995