MAN
Piston for MAN
This piston is a critical component for MAN diesel engines, responsible for converting combustion energy into mechanical force. It is designed to fit within the engine cylinder assembly to maintain compression and power output.
Specifications
- Part number
- 51025017387
- Brand
- MAN
The piston 51025017387 is a reciprocating component that slides within the cylinder of a MAN diesel engine. It functions by transforming the energy generated from fuel combustion into linear mechanical force, which the crankshaft subsequently converts into rotational motion. This movement is central to the operation of the engine, driving the mechanical systems of the machine. The component is designed to house piston rings, which seal the combustion chamber to ensure proper compression and manage oil consumption during the engine cycle.
This part is manufactured for specific MAN diesel engine configurations used in heavy machinery and commercial vehicles. It is engineered to meet the precise dimensional requirements of the engine block to ensure proper clearance and thermal expansion characteristics during operation. By maintaining the integrity of the combustion chamber, this piston supports the efficiency and power delivery of the engine assembly.
In an internal combustion engine, the piston acts as the primary moving boundary of the combustion chamber. It must withstand the pressure cycles and thermal loads inherent in diesel engine operation while minimizing reciprocating mass to reduce vibration and inertia forces on the connecting rod and crankshaft assembly.

