An Improved Oil Pump Body Assembly Is Used on Certain C27, C32, and 3412 Machine Engines {1304} Caterpillar

Hydraulic Shovel

6015B (S/N: WSN1-UP)

6020B (S/N: DNR1-UP)

6030 (S/N: DHL1-UP)

6030 FS (S/N: DHG1-UP)

6040 (S/N: DHJ1-UP)

6040 FS (S/N: DHX1-UP)

Off-Highway Truck/Tractor

773E (S/N: KEG1-UP; ASK1-UP)

777G (S/N: GT71-UP; T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-UP)

Quarry Truck

773G (S/N: MWH1-UP; JWS1-UP; T5S1-UP; T5T1-UP)

775G (S/N: T5F1-UP; RFM1-UP; MJS1-UP; T5W1-UP)

Rotary Drill

MD6240 (S/N: DN21-UP; DT41-UP)

MD6290 (S/N: DN31-UP; DS31-UP)

MD6420 (S/N: DT91-UP)

MD6420C (S/N: DN61-UP; DS91-UP; DW91-UP)

Underground Articulated Truck

AD55B (S/N: JNW1-UP)

AD60 (S/N: KNW1-UP)

Wheel Dozer

844K (S/N: KLS1-UP)

854K (S/N: H9K1-UP; H8M1-UP)

Wheel Loader

990K (S/N: DJK1-UP; A9P1-UP)

992K (S/N: 8801-UP; ZMX1-UP)

993K (S/N: Z4D1-UP; Z4Z1-UP)

Description Of Change: The improved oil pump body assembly is more robust.

Adaptable To: The improvement has been made to the 116-1979 Oil Pump Body As.

The 116-1979 Oil Pump Body As is adaptable to the above engines back to first production.

This change is effective from the factory on or after 08 October 2015.

The engine oil pump part numbers are listed in Table ***#i06873648/i06734618.1*** .