1997/10/27 Caterpillar

3304 (5FG, 9CG, 4TJ, 78P, 2ER, 43V, 46V, 48V, 07Z, 09Z, 12Z, 59Z),
3306 (3LC, 8TD, 1TF, 2JG, 6KJ, 03N, 9BN, 44V, 47V, 49V, 08Z, 10Z, 13Z, 60Z, 62Z) Engines For Caterpillar Built Machines

Reference: See the Service Magazine article entitled "Significant Improvement For Pump Impellers (Water Pumps)" in this issue.

Several design changes have been made to the pump impeller (water pump) over the past few years in the above machine engines. The most current 134-7422 Pump Impeller is made of a black plastic.

For purposes of determining the original build design of the pump impellers for 3300 Engines built in Mossville, refer to the following serial number ranges in the charts:

NOTE: The effectivity in the chart is for machines with engines produced in Mossville only. Other effectivity is not available.