Piston rings / Ø 84 mm / STD / Shibaura J843 / N843 / N844 / Shibaura D23 / D238 / D258F / D275 / D278

Engine piston rings (piston 5-23-201-46, 16641-21112) with a diameter of 84 mm and a thickness of 2.00 x 1.50 x 4.00 mm for Shibaura tractors of the Shibaura D23, Shibaura D238, Shibaura D258F, Shibaura D275, Shibaura D278 series with Shibaura J843, Shibaura N843, Shibaura N844 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 wipe excess oil from the cylinder walls during piston movement, ensuring proper lubrication. There are three basic types of rings in 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; 84 mm,
• thickness; 2.00 / 1.50 / 4.00 mm,
• original part numbers: 115017541,
• part numbers: 6-26-100-50.

Engine models :

Shibaura :

• Shibaura J843,
• Shibaura N843,
• Shibaura N844.

Tractor models :

Shibaura :

• Shibaura D23,
• Shibaura D238,
• Shibaura D258F,
• Shibaura D275,
• Shibaura D278.

First signs of wear of piston rings:

• 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,
• unnatural, easily audible sound from the engine area,
• power loss,
• problems with starting the engine,

All symptoms should be consulted with a professional service for proper diagnosis and checking the engine for the need to replace the rings or repair the engine.

Magazine : M01:A71:S01

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