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Injector Pump Plunger 108-2104

Pioneer Diesel Parts

Whats/App: +86 152 6025 8100

Web: pioneerdieselparts.com

The Injector Pump Plunger 108-2104 / 7E-6007 / 20R-5289 is a high-precision component used in mechanical diesel fuel injection pumps, specifically designed for Caterpillar heavy-duty engines such as 3406B, 3406C, 3408C, and 3412 series. As part of the plunger and barrel assembly, it is responsible for generating high fuel pressure and delivering accurate fuel quantities to the injectors, ensuring proper combustion and stable engine performance.

In terms of compatibility, this plunger assembly is widely used across a broad range of Caterpillar equipment and engine platforms. It is commonly installed in engines powering Caterpillar 3406B, 3406C, and 3412 used in trucks, generators, marine engines, and industrial machinery. Additionally, it is compatible with multiple OEM and replacement part numbers, including 108-2104, 7E-6007, and 20R-5289, making it a versatile solution for diesel injection pump repair and rebuilding.

The application range of the 108-2104 plunger extends to various Caterpillar machines such as articulated dump trucks (D350E, D400 series), excavators (375, 375L), wheel loaders (980C, 980F, 980G), motor graders (16G, 16H), and track-type tractors (D8N, D8R). It is also widely used in generator sets and marine engines equipped with 3406 and 3412 power units, highlighting its adaptability across construction, mining, marine, and industrial sectors.

Engineered with high-strength materials and precision machining, the Injector Pump Plunger 108-2104 / 7E-6007 / 20R-5289 is designed to withstand extreme pressure and continuous operation in demanding environments. When used as a replacement component in injection pump overhauls, it helps restore proper fuel pressure, improve engine efficiency, and ensure long-term reliability of the diesel fuel system. Proper matching with the correct pump model and engine application is essential to maintain optimal performance and durability.


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