Water pump / Kubota L2550/L2850/L3250/L3408/L4708 / Kubota D1301/D1302/V1502/V1903/V2003/V2203 / 1A021-73030

Water pump (seal 5-15-117-03 , seal 6-06-100-01 , housing 5-25-128-13 , 17331-73410 , shaft 5-23-105-01, 15521-73550, 885166K-3A , pulley 5-20-102-49, fan 6-14-201-02 , 34550-16210) for Kubota tractors of the Kubota L2550, Kubota L2850, Kubota L3250, Kubota L3408, Kubota L4708 series with Kubota D1301, Kubota D1302 engines , Kubota V1502, Kubota V1903, Kubota V2003, Kubota V2203 and others

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

Dimensions :

• height: 90 mm,
• total length: 330 mm,
• flywheel diameter: 63 mm,
• spacing of holes for wheel mounting bolts: 49 mm (measured diagonally), 35 mm (measured from each other),
• rotor diameter: 66 mm,
• spacing of holes for pump mounting screws visible exactly in the photo,
• seal included with the pump: 5-15-117-03 ,
• comparison numbers: 6-15-111-02 , 1A021-73033, 15521-73033, 15521-73035, 16661-73034,
• part number: 1A021-73030,

Tractor models :

Kubota :

• Kubota L2550,
• Kubota L2850,
• Kubota L3250,
• Kubota L3408,
• Kubota L4708.

Engine model :

Kubota :

• Kubota D1301,
• Kubota D1302,
• Kubota V1502,
• Kubota V1903,
• Kubota V2003,
• Kubota V2203.

The most common problems and failures of the water pump are the seizure of the bearing , which is subject to high rotational speeds, and the elements that directly cooperate with the pump, such as the pulley and the fan, which are not always properly balanced. A belt that is too tight , a worn belt , a V-belt that is too loose , a V-belt installed at the wrong angle , poor lubrication or lack of grease are other causes that cause damage to the water pump. The first signs of water pump damage or signs of improper operation include an unnatural sound from under the hood, coolant stains under the tractor or temperature spikes visible on the instrument panel clocks.

Warehouse :
M01:B12