Compatibility Kawasaki Motorcycle 1978 KZ400-A2 CYLINDER HEAD/COVERSKawasaki Motorcycle 1977 KZ400-A1 CYLINDER HEAD/COVERSKawasaki Motorcycle 1975 KZ400-D CYLINDER HEAD/COVERS ('74 -'75 KZ400/KZ4Kawasaki Motorcycle 1974 KZ400 CYLINDER HEAD/COVERS ('74 -'75 KZ400/KZ4Kawasaki Motorcycle 1977 KZ400-D4 CYLINDER HEAD/COVERS ('74 -'75 KZ400/KZ4Kawasaki Motorcycle 1976 KZ400-D3 CYLINDER HEAD/COVERS ('74 -'75 KZ400/KZ4Kawasaki Motorcycle 1977 Special - KZ400-S3 CYLINDER HEAD/COVERS ('75 S)Kawasaki Motorcycle 1975 Special - KZ400-S CYLINDER HEAD/COVERS ('75 S)Kawasaki Motorcycle 1976 Special - KZ400-S2 CYLINDER HEAD/COVERS ('75 S)Kawasaki Motorcycle 1974 KZ400 CYLINDER HEAD/COVERS ('76 -'77 KZ400 - DKawasaki Motorcycle 1976 KZ400-D3 CYLINDER HEAD/COVERS ('76 -'77 KZ400 - DKawasaki Motorcycle 1975 KZ400-D CYLINDER HEAD/COVERS ('76 -'77 KZ400 - DKawasaki Motorcycle 1977 KZ400-D4 CYLINDER HEAD/COVERS ('76 -'77 KZ400 - DKawasaki Motorcycle 1975 Special - KZ400-S CYLINDER HEAD/COVERS ('76-'77 S2/S3)Kawasaki Motorcycle 1976 Special - KZ400-S2 CYLINDER HEAD/COVERS ('76-'77 S2/S3)Kawasaki Motorcycle 1977 Special - KZ400-S3 CYLINDER HEAD/COVERS ('76-'77 S2/S3)