DescriptionUsed as “O.E.M. Replacement”; Kawasaki® KZ 650/750 1976-1985Used as ” Shim on Bottom Conversion”; Kawasaki® KZ/Z1 900 1973-1977 Kawasaki® KZ/Z1 1000 1977-2002 Kawasaki® GPZ 1100 1981-1982KPMI® uses U.S. mill certified titanium bar for our retainers. KPMI® Titanium Retainers are engineered using advanced Finite Element Analysis (FEA) software. FEA stress analysis allows our engineers to lighten the retainer without sacrificing strength. All KPMI® retainers are inspected to insure correct fitment on the valve and on the spring. Correct fitment promotes longer component life and optimizes the Performance of the entire valvetrain.MaterialTitaniumQuantityPkg. of 8TypeIntake / ExhaustNoteFits KPMI® Spring Only Kit PN 40-1016, 40-1007, and 40-1014 Use with KPMI® “Shim On Bottom” Style Tappets PN 40-1013 with this retainer.Unique Identifier No.FR327789_01GAUS