Improved Venturi Tubes Are Now Used on Certain C27 and C32 Machine Engines {1071} Caterpillar

Hydraulic Shovel

6015B (S/N: LWN1-UP)

Off-Highway Truck/Tractor

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

Quarry Truck

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

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

Track-Type Tractor

D10T2 (S/N: JJW1-UP)

D11T (S/N: JEL1-UP; JNS1-UP)

Wheel Dozer

844K (S/N: MBE1-UP)

854K (S/N: H8M1-UP)

Wheel Loader

990K (S/N: A9P1-UP)

992K (S/N: 8801-UP)

993K (S/N: Z4D1-UP)

Description Of Change: The improved venturi tubes are easier to identify to ensure that the proper venturi tube is installed on the appropriate engine arrangement.

Adaptable To: The improvement has been made to the 364-6368 Venturi Tube and the 365-5470 Venturi Tube.

The 364-6368 Venturi Tube and the 365-5470 Venturi Tube are adaptable to the above machine engines back to first production.

This change is effective for machine engines built in the factory on or after 11 November 2015.