SCREW 7H1984 - Caterpillar

Illustration 1 g03323558
(1) 420-0652 Water Seal Assembly (2) 420-0653 Water Seal Assembly Note: The new seal assemblies (1) and (2) are not available in the rebuild parts kits. If ordering an engine single cylinder head rebuild kit, the new seals should be ordered separately and the old seals discarded. Updated single cylinder kits will be available at a later date.The new and original part numbers used are listed in table 1.
Table 1
New Part Number    Original Part Number    Quantity    
420-0652 Water Seal Assembly     325-1412 Water Seal Assembly     4    
420-0653 Water Seal Assembly     325-1410 Water Seal Assembly     4    3500 machine engines are effective as of 28March 2013 with the new water ferrules. Remanufactured 3500 machine engines are effective as of 8April 2013 with the new water ferrules.