In-Vehicle Tool for 3126B Engines

Compatibility and Usage:

• For 3126B engines, use221-9777as an alternative.
• Designed to be used with ST-179, this tool eliminates the need to remove the cylinder heads, saving significant time and effort. Repairs can be performed directly in the vehicle.

Used With:

• • 310-7255
  • 310-7257
  • 227-1200
  • 8C-0563
  • 227-2911

Important Note:

• Not for MEUI Engines: This tool does NOT work on engines with mechanical injections (MEUI). While wires on the injector may suggest HEUI injection, if your injectors are actuated by a rocker arm and push rod, your engine uses MEUI.
• For MEUI-equipped engines, use 143-2099-MUI-I tools instead.

This tool ensures efficiency and precision for specific engine applications while reducing labor-intensive processes.

For the Caterpillar Tools Catalog, clickhere

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