Engine Piston / Ø 84 mm / STD / Shibaura N844 / Shibaura D258F

Engine piston (rings %C5% 9Bci-do-yanmar/843-zestaw-pier %C5% 9Bcieni-do-t %C5% 82oka-yanmar-2010-shibaura-d258f.html">6-26-100-50 ) with an outer diameter of 84 mm and a total height of 87.50 mm for Shibaura tractors of the Shibaura D258F series with Shibaura N844 engines and others. The engine piston is a moving element responsible for converting gas and energy generated during combustion to the crankshaft, which is then converted into engine power. The piston is connected to the crankshaft by an element called a connecting rod with pin connections. At the top of the piston there are ring channels for mounting the piston rings, in the middle there is a hub for connection to the connecting rod. At the top there is the so-called bottom, which, depending on the type of engine, may have different shape. Due to the very difficult working conditions, engine pistons are most often made of aluminum and silicon alloys.

Dimensions :

• outer diameter: 84 mm,
• height: 71 / 87.50 mm,
• pin hole diameter: 28 mm,
• pin diameter: 27.90 mm,
• pin length: 72 mm,
• valve seat depth: 3.00 mm,
• distance from the end of the pin hole to the lower edge of the piston: 9 mm,
• Distance from edge of pin hole to top of piston: 33.50 mm.
• width of ring grooves ( %C5% 9Bci-do-yanmar/843-zestaw-pier %C5% 9Bcieni-do-t %C5% 82oka-yanmar-2010-shibaura-d258f.html">6-26-100-50 ) from the top of the piston: 2.00 / 1.50 / 4.00 mm,
• original part number: 16641-21112,
• reference numbers: 2973080, 40253600, 115017491, 115101749, WG1016449,
• part numbers: 5-23-201-46.

Engine models :

Shibaura :

• Shibaura N844.

Tractor models :

Shibaura :

• Shibaura D258F.

Magazine : K18 A23

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