PUMP GP-METERING 3G7595 - Caterpillar

3500 Family Of Engines;
776B Tractors;
777B, 785, 789 TrucksDescription of Change: New auxiliary water pump groups are used. The drain hole in the housing assembly changed to provide improved sealing. Formerly a copper gasket (washer) was used between the housing and the drain plug. The drain hole in the housing now uses an o-ring seal. In vehicular applications, a new elbow and seal are installed in the drain hole. The use of the o-ring seal will help prevent leaks.
Location of new drain plug (2) and o-ring seal (1) on new auxiliary water pump groups. In vehicular applications the drain plug is replaced by a new elbow.Adaptable To: The new 7E9781 Auxiliary Water Pump Group is a direct replacement for the former 5N5978 Auxiliary Water Pump Group in all but the vehicular applications. In the radiator groups in the 776B Tractors and 777B Trucks, the former 4B8407 Gasket, 4W8616 Adapter, 7J8611 Elbow and 619463 Connector have been replaced by the new 3J1907 Seal and 308276 Elbow. In the radiator groups in the 785 and 789 Trucks, the former 4B8407 Gasket, 4W8616 Adapter, 619463 Connector and 9L5452 Hose Assembly have been replaced by the new 3J1907 Seal and 308276 Elbow, and 4N8470 Hose Assembly. The new elbow is installed in the drain hole in the bottom of the auxiliary water pump housing in place of the drain plug.
The new 7E9782 Auxiliary Water Pump Group is a direct replacement for the former 9Y8176 Auxiliary Water Pump Group used on 3512...4KC, and 3516...3RC Spark-Ignited Engines.