Pompa wody KUBOTA V2403 V2203
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  • Pompa wody KUBOTA V2403 V2203
  • Pompa wody KUBOTA V2403 V2203
  • Pompa wody KUBOTA V2403 V2203
  • Pompa wody KUBOTA V2403 V2203
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Water pump - Kubota V2403 / V2203

Product code: 1A051-73030
6 people purchased this product
zł438.21 netto
zł539.00
Includes VAT 23%

Lowest price from 30 days: zł539.00

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Product description

Water pump for Kubota tractors with Kubota V2203, Kubota V2403 and other series engines.

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 re-injected 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 during engine operation.

Dimensions:

  • total height: 90 mm,
  • length: 280mm,
  • width: 65 / 160 mm,
  • flywheel diameter: 63 mm,
  • flywheel mounting bolt hole spacing 50 (measured diagonally), 35 mm (measured apart),
  • the spacing of the mounting screw holes is clearly visible in the photo,
  • rotor diameter: 65 mm,
  • reference number: 1A051-73032,1K051-73030,
  • gasket included,
  • weight: 1 kg.

The most common problems and faults of the water pump are the bearing seizure , which is subjected to high rotational speeds and because the elements that directly cooperate with the pump, such as the pulley and the fan, which are not always properly balanced. Too tight a belt , worn belt , too loose V-belt, V-belt installed at the wrong angle , poor lubrication or lack of lubrication are other causes that cause water pump damage. The first signs of water pump damage or signs of improper operation are an unnatural sound from under the hood, a coolant stain under the tractor or temperature jumps visible on the dashboard gauges.

Warehouse :
M01:B11
M01:B12

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

Specifications

Condition
New
Bolt hole spacing (mm)
50 / 35 (koło)
Engine model
- Kubota V2203
Height (mm)
90
Width (mm)
160
Bolt hole spacing (mm)
50 / 35 (koło)
Weight (kg)
1
Production
Substitute
Parts
Cooling system
Tractor models
Kubota KL5150, Kubota GL418, Kubota KL46, - Kubota L4060, Kubota L5018, Kubota KL5550, Kubota MX5000, Kubota KL48Z, Kubota M5140, Kubota L5060, Kubota MX5100, Kubota KL53Z, Kubota L4701F, Kubota M4800SU, Kubota L5240, Kubota KL58Z, Kubota L4701DT, Kubota M5640SU, Kubota L6060, Kubota KL380, Kubota L4701HST, Kubota M5660SU, Kubota M4800, Kubota KL385, Kubota L4200F, Kubota MX4700, Kubota M5640, Kubota KL410, Kubota MX5000F, Kubota MX4800, Kubota M5660, Kubota KL415, Kubota KL50, Kubota MX5000SU, Kubota GL417, Kubota KL460, Kubota L4350, Kubota MX5200, Kubota GL467, - Kubota L4200, Kubota KL465, Kubota GL40, Kubota MX5400, Kubota GL-400, - Kubota L4300, Kubota KL500, Kubota KL505, Kubota L4200DT, Kubota MX5800, Kubota KL37Z, - Kubota MX4700DT, Kubota KL550, Kubota L4701, Kubota MX6000, Kubota KL38, - Kubota MX4700H, Kubota KL3950, Kubota L5030, Kubota KL40Z, - Kubota MX5000DT, Kubota KL4350, Kubota L4100, Kubota KL41, - Kubota MX5100DT, Kubota KL4750, Kubota L4760, Kubota KL44Z, - Kubota MX5100H
Length (mm)
280
Wheel diameter (mm)
63
Rotor diameter (mm)
65
Comparison numbers
1K321-73030, 1K32173030

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Questions & Answers

Why is regular filter replacement (oil, air, fuel) crucial for a mini tractor?

User
Traktor.com.pl Expert – Technical Advisor • 17.02.2026
Regular filter replacement is the easiest way to extend the life of an engine from brands like Kubota or Yanmar. The oil filter removes metallic contaminants generated during operation, the air filter protects the cylinders from field dust, and the fuel filter prevents water and dirt from damaging the precision injection system. We recommend replacing filters every 50-100 operating hours or at least once per season to ensure optimal engine performance.

How to properly select and sharpen mower blades for a Japanese tractor?

User
Traktor.com.pl Expert – Technical Advisor • 17.02.2026
When selecting mower blades, consider the mower deck model and the blade length and center bore diameter. Maintaining blade balance is crucial when sharpening – an unbalanced blade causes vibrations that damage the hub bearings. Remember that sharp blades mean healthier grass, a cleaner cut, and less strain on the engine of your Iseki or Mitsubishi tractor.

How to identify the correct V-belt size and how to care for it?

User
Traktor.com.pl Expert – Technical Advisor • 17.02.2026
It's best to read the markings on the side of the old V-belt. If they are illegible, measure the belt width and its outer length (La). On Shibaura and Hinomoto tractors, it's important to regularly check the belt tension – too loose a belt will cause slippage and faster wear, while too tight a belt can cause alternator or water pump bearing failure.

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