Piston rings / 70mm / STD / Mitsubishi K3C / VST MT180

Mitsubishi engine piston (piston 5-23-201-64, MM435032X0K0) with a diameter of 64 mm for VST brand tractors of the VST MT180 series and others with Mitsubishi K4C and other engines.

Piston rings seal the space between the piston and cylinder walls. During combustion of the fuel mixture in the engine chamber, chemical energy is exchanged for mechanical energy, which is why the tightness of these two components is crucial. Another important role of piston rings in an engine is to scrape excess oil from the cylinder walls during piston movement, ensuring proper lubrication. There are three basic types of rings in internal combustion engines:

• sealing rings,
• scraper rings,
• compression-scraper rings.

When replacing the rings, pay particular attention to the order in which they are positioned on the piston. Install the rings in the correct order: the oil control ring first, the compression ring second, and the oil seal ring third.

Dimensions :

• diameter: 70 mm,
• thickness: 2.50 / 2.50 / 2.50 / 4.00 mm,
• size: nominal / standard,
• the set contains 4 pcs.
• set of rings for 1 piston,
• comparison numbers: MM432982,
• original part numbers: MM432983,
• part numbers: 180104001X0.

Engine models :

Mitsubishi:

• Mitsubishi K4C.

Tractor models :

VST :

• VST MT180.

First signs of piston ring wear:

• higher fuel consumption,
• loss of engine oil,
• power loss,
• black smoke from the exhaust pipe of a hot engine,
• uneven engine operation at idle speed,
• an unnatural, easily audible sound from the engine area,
• power loss,
• problems with starting the engine,

These are signs that it's time to replace the rings. All of these symptoms should be consulted with a professional service center for proper diagnosis and engine inspection to determine whether ring replacement or engine overhaul is necessary.

Magazine : K18:F16:S01

*Photos are for illustrative purposes only and may differ in detail from the delivered product due to differences in production over the years.