SWITCH AS 1543986 - Caterpillar

3508 (95Y, 68Z),
3512 (1LM, 49Y, 65Z),
3516 (27Z, 71Z) Industrial;
3508 (6TJ),
3508B (5PS),
3512 (2WK),
3512B (3ZW),
3516 (9KF) Locomotive;
3508 (96Y, 69Z),
3508 With EUI (3PS),
3508B (2BM, 7SM, 1TW),
3512 (50Y, 66Z),
3512 With EUI (3RS),
3512B (7HM, 4TN, 2GW),
3516 (29Z, 72Z),
3516 With EUI (3SS),
3516B (8CN, 8KN, 3CW) Marine;
3508 With EUI (3TS),
3508B (3DM, 3DW),
3512 With EUI (3WS),
3512B (8EM, 1PW),
3516 With EUI (3XS),
3516B (9AN, 2FW) Marine Auxiliary;
3508 (23Z, 70Z),
3508 With EUI (5XM, 3LS),
3508B (4GM, 6PN, 2HW),
3512 (24Z, 67Z),
3512 With EUI (6PM, 3MS),
3512B (8RM, 6WN, 4AW),
3516 (4XF, 5SJ, 25Z, 73Z),
3516 With EUI (7KM, 3NS),
3516B (6HN, 7RN, 1NW) Generator Set;
3508 (97Y),
3512 (51Y),
3516 (28Z) Vehicular EnginesDescription of Change: New seals are used in the camshaft cover, crankshaft cover, and valve cover of these engines. The changes for the new seals include: * A slightly larger cross section to increase seal compression* A slightly longer length so they do not need to stretched for installation* A different seal material that is more compatible with engine oilThese changes will help prevent oil leaks.
Adaptable To: The chart identifies the new and former seals and their applications.
Illustration 1.
Location of new 162-7473 Seal (1) for the camshaft cover. The new 162-7473 Seal (1) can also be used for the valve cover on EUI engines. Location of the new 169-4834 Seal (2) for the crankshaft cover.
Illustration 2.
Location of the new 159-4833 Seal (3) for the valve cover on MUI engines.