SWITCH-PRESSURE 4866962 - Caterpillar

(4WD, 2JF, 9TG),
G3512 (4KC, 5JD, 7NJ),
G3516 (3RC, 8LD, 4EK) Industrial EnginesDescription of Change: A new stub shaft (crankshaft) is available for the above engines. The new stub shaft length is increased, permitting the use of all six pulley grooves on the front crankshaft drive pulley.Adaptable To: The new 147-1983 Stub Shaft is a direct replacement for the former 7N-7057 Stub Shaft within the 150-7947 Stub Shaft Group. The 147-1983 Stub Shaft length is increased by 50 mm (2.0 in). The 147-1983 Stub Shaft is serviced, and adaptable to the above engines. The pulley is still mounted the same distance from the end of the stub shaft. The original bolts are used.
The 147-1983 Stub Shaft is required for the G3516, 1200 rpm Industrial Engines. The G3516, 1200 rpm Industrial Engines use the double damper.