Water pump / Iseki TU/TX / Mitsubishi K3A/K3B/K3C/K3M/K4A/K4B/K4C/K4D/K4E/K4F/K4N/S3L/S3L-2/S4L / MM409302 / 5650-040-930-20

Water pump for Iseki tractors series Iseki TU120, Iseki TU140, Iseki TU145, Iseki TU150, Iseki TU155, Iseki TU157, Iseki TU160, Iseki TU165, Iseki TU170, Iseki TU175, Iseki TU177 , Iseki TU1400, Iseki TU1500, Iseki TU1600, Iseki TX145, Iseki TX155, Iseki TX1410, Iseki TX1510, Iseki TX2140, Iseki TX2160 Mitsubishi series Mitsubishi D1450, Mitsubishi D1550, Mitsubishi D1650, Mitsubishi D1850, Mitsubishi D2050, Mitsubishi D23 50, Mitsubishi MT22, Mitsubishi MT160, Mitsubishi MT180, Mitsubishi MT210, Mitsubishi MT250, Mitsubishi MT280, Mitsubishi MT300, Mitsubishi MT408, Mitsubishi MT468, Mitsubishi MT1401, Mitsubishi MT1601, Mitsubishi MT1801, Mitsubishi MT2001, Mitsubishi MT2201, Mitsubishi MT2501, Mitsubishi MTE1800 , Mitsubishi MTE2000 by Satoh series Satoh ST1440, Satoh ST1520, Satoh ST1540 , Satoh ST1620, Satoh ST1640, Satoh ST1820, Satoh ST1840, Satoh ST2020, Satoh ST2040 with Mitsubishi K3A, Mitsubishi K3B, Mitsubishi K3C, Mitsubishi K3M, Mitsubishi K4A, Mitsubishi K4B, Mitsubishi K4C, Mitsubishi K4D, Mitsubishi K4E, Mitsu engines Bishi K4F, Mitsubishi K4N , Mitsubishi S3L, Mitsubishi S3L-2, Mitsubishi S4L, Mitsubishi S4L-2 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: 120 mm,
• total length: 180 mm,
• flywheel diameter: 60 mm,
• spacing of holes for wheel mounting bolts: 45 mm (measured diagonally), 32 mm (measured from each other),
• spacing of holes for pump mounting screws visible exactly in the photo,
• gasket included with the pump,
• original part numbers: 5650-040-9302-0, 5650-040-930-20,
• comparison numbers: MM409303, MM433424,
• part numbers: MM409302.

Tractor models :

Iseki :

• Iseki TU120,
• Iseki TU140,
• Iseki TU145,
• Iseki TU150,
• Iseki TU155,
• Iseki TU157,
• Iseki TU160,
• Iseki TU165,
• Iseki TU170,
• Iseki TU175,
• Iseki TU177,
• Iseki TU1400
• Iseki TU1500,
• Iseki TU1600,
• Iseki TX145,
• Iseki TX155,
• Iseki TX1410,
• Iseki TX1510,
• Iseki TX2140.

Mitsubishi :

• Mitsubishi D1450,
• Mitsubishi D1550,
• Mitsubishi D1650,
• Mitsubishi D1850,
• Mitsubishi D2050,
• Mitsubishi D2350,
• Mitsubishi MT22,
• Mitsubishi MT160,
• Mitsubishi MT180,
• Mitsubishi MT210,
• Mitsubishi MT250,
• Mitsubishi MT280,
• Mitsubishi MT300,
• Mitsubishi MT408,
• Mitsubishi MT468,
• Mitsubishi MT1401,
• Mitsubishi MT1601,
• Mitsubishi MT1801,
• Mitsubishi MT2001,
• Mitsubishi MT2201,
• Mitsubishi MT2501,
• Mitsubishi MTE1800,
• Mitsubishi MTE2000.

Satoh :

• Satoh ST1420,
• Satoh ST1440,
• Satoh ST1520,
• Satoh ST1540,
• Satoh ST1620,
• Satoh ST1640,
• Satoh ST1820,
• Satoh ST1840,
• Satoh ST2020,
• Satoh ST2040.

Engine models :

Mitsubishi :

• Mitsubishi K3A,
• Mitsubishi K3B,
• Mitsubishi K3C,
• Mitsubishi K3M,
• Mitsubishi K4A,
• Mitsubishi K4B,
• Mitsubishi K4C,
• Mitsubishi K4D,
• Mitsubishi K4E,
• Mitsubishi K4F,
• Mitsubishi K4N,
• Mitsubishi S3L,
• Mitsubishi S3L-2,
• Mitsubishi S4L,
• Mitsubishi S4L-2.

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.

Magazine :
M01:M26