2009/01/26 Caterpillar

Engine:

C4.4 (S/N: 4441-UP)

C6.6 (S/N: 6661-UP)

Generator Set:

C4.4 (S/N: D4B1-UP)

C4.4 (S/N: D4D1-UP)

C6.6 (S/N: SDA1-UP)

C6.6 (S/N: N6D1-UP)

C4.4 (S/N: GLD1-UP; GLE1-UP)

Description of Change: An improved fuel injection pump timing tool has been introduced. The new fuel injection pump timing tool has spring washers and improved tolerances.

Adaptable To: The improved 338-1054 Tool Gp-Pump Tmg replaces 278-2639 Tool Gp-Pump Tmg .

The 278-2639 Tool Gp-Pump Tmg should be returned to the Dealer Service Tools for replacement.