Caterpillar 111-3769 Fuel Injection Pump Group

The Caterpillar 111-3769 fuel injection pump group is a precision-engineered component designed for Caterpillar 3306 and 3306B series diesel engines. It delivers metered fuel at high pressure to the engine cylinders ensuring optimal combustion efficiency and power output. This pump group is a direct replacement for OEM part numbers 111-3769 and 6I-2831. It is widely applied across construction machinery platforms including hydraulic excavators, wheel loaders, track-type tractors, and motor graders. The unit features a mechanical governor drive mechanism suitable for heavy-duty industrial operating cycles. Remanufactured and new aftermarket options are available meeting OEM dimensional and performance standards.