Image Item No. Description  1-4 (Inv)  Chain Links 25 Parts, 1981 Catalog: Sets: Service Packs  1131-1 (Inv)  Tires (42 mm) and Hubs 4 Parts, 1981 Catalog: Sets: Service Packs: Technic  1135-1 (Inv)  Battery Cable Kit: 12 Connectors, 3m Cable 13 Parts, 1981 Catalog: Sets: Service Packs  1135-2 (Inv)  Battery Cable Kit: 16 Connectors, 3m Cable 17 Parts, 1981 Catalog: Sets: Service Packs  1146-1 (Inv)  Pushrods, Cylinder Housings 6 Parts, 1981 Catalog: Sets: Service Packs: Train  1149-2 (Inv)  Bulldozer Chainlinks 52 Parts, 1981 Catalog: Sets: Service Packs: Technic  1197-2 (Inv)  Crown Gears 2 Parts, 1981 Catalog: Sets: Service Packs: Technic