New Engine Software Are Now Used for Certain C27 and C32 Engines {1920} Caterpillar

Electric Power Generation

C27 PET GEN SET (S/N: R8W1-118)

Engine

3512B (S/N: ZAG1-131)

Generator Set

C27 GEN SET (S/N: 2A31-331; DWB1-3545; GDS1-1066)

C32 (S/N: XMJ1-104; PHT1-153)

C32 GEN SET (S/N: AL61-251; K7C1-986; NRC1-538; SXC1-92020; JSJ1-92001; JAZ1-4190)

Industrial Engine

C27 (S/N: AT41-266)

C27 INDUSTRIAL (S/N: RAM1-308; TWM1-82002)

C32 INDUSTRIAL (S/N: TLD1-83001)

Petroleum Engine

C32 PETROLEUM (S/N: B2C1-354; SMP1-317)

Petroleum Power Train Package

C27 KNOCKDOWN K (S/N: 1271-9)

C32 KNOCKDOWN K (S/N: 1321-27)

C32 PET GENSET (S/N: PEF1-156; PEK1-114)

TH48-E70-C27I (S/N: PKZ1-1)

TH48-E70-C32I (S/N: PKY1-184)

TH48-E70-C32P (S/N: PKG1-154)

Power Module

C32 POWER MODUL (S/N: MED1-196; KNM1-299)

Track-Type Tractor

SALES1A (S/N: NEW1-167)

Description Of Change: The new engine software that are used have multiple resolutions for Electric Power and Industrial engine applications.

Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

The updates for the Electrical Power applications are listed below:

• Electronic Control Module (ECM) power supply strategy

• Camshaft/crankshaft timing range

• Camshaft/crankshaft timing range

• Enable Petroleum Droop feature

• EEC1 and EEC2 response rates

• FLS/FTS range