New Engine Software in Now Used on Certain Commercial 3500 Series Engines {1920} Caterpillar

Electric Power Generation

3516B GEN SET (S/N: ZAP1-2021)

3516C GEN SET (S/N: SBK1-2123)

Engine

3508B (S/N: BGX1-157)

3512B (S/N: BRK1-353; 8RM1-1160; 6WN1-802; 5AW1-141; 6GW1-1859)

3512C (S/N: YBD1-473; SBG1-1384)

3516B (S/N: BMB1-131; 6HN1-1719; 7RN1-92002; PBR1-1000; 1NW1-203; 2JW1-422)

3516C (S/N: SBJ1-2045; SFJ1-934; SEK1-1280)

Power Module

PM3508 (S/N: BLM1-273)

PM3512 (S/N: BNR1-353)

PM3516 (S/N: BPD1-92001; NAM1-399; KEN1-232)

Description Of Change: New engine software is now available and includes the following updates:

• Improved robustness of the DM1 message signal to the EMCP.

• Added support for SPN 3621 Differential Oil Pressure.

• Added support for Shutdown Override Feature to the configurable parameters.

• Improved robustness of Single Rating Software to Multi Rating Software flash over to retain the Rated Fuel Position parameter.

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.

Refer to Table 1 for the new and former software numbers.