Water pump - Yanmar 3T75HA / 3T90T / 2TR22 / 2TR27

The water pump, the radiator coolant, is one of the most important elements of the engine cooling system and this method of cooling is commonly called water cooling . The engine block and the engine head are elements that heat up to very high temperatures during operation and it is these that we want to cool with the coolant during operation. Special water channels are bored in the engine and the head for the circulation of water, which, in order to be pumped back into the engine water channels. The circulation of the coolant is possible thanks to the water pump , which is most often placed between the radiator and the engine and is driven by a V-belt from the alternator. To the pump flywheel, we screw in the following order the belt pulley, and then the radiator fan, which rotates together with the belt pulley, providing the air movement needed to cool the radiator while the engine is running.

Dimensions:

• Rotor diameter: 65 mm.
• Inlet/outlet outlet diameter: external 28 mm, internal 20.60 mm.
• Total height: 107 mm.
• Wheel diameter: 50 mm.
• Wheel hole spacing: 40 mm (diagonally). 28 mm (apart).
• The spacing of the mounting screws is visible in the photo.
• Index: 724550-42700

Comparison number:

• HD46645661

Warehouse: (M01:B15)

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