Part Number: 10891971 (Hardware) Part Number: 10891982 (Extension valve) Part Number: 10891983 (Spring helical) Part Number: 10891985 (Handle valve) Part Number: 10891986 (Cylinder assy) Part Number: 10891987 (Head assy) Part Number: 10891995 (Tube) Part Number: 10891996 (Tube,bent,metallic) Part Number: 10891997 (Tube) Part Number: 10891998 (Tube bent metallic) Part Number: 10891A (Oil cooler) Part Number: 10891KA (No description) Part Number: 1089-2 (Coupling pipe) Part Number: 108920 (Gear; spur)