21T crown wheel, 8T pinion, 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302, Kubota L39, Kubota L3940, Kubota L40
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3 osoby oglądają ten produkt
  • 21T crown wheel, 8T pinion, 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302, Kubota L39, Kubota L3940, Kubota L40
  • 21T crown wheel, 8T pinion, 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302, Kubota L39, Kubota L3940, Kubota L40
  • 21T crown wheel, 8T pinion, 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302, Kubota L39, Kubota L3940, Kubota L40
  • 21T crown wheel, 8T pinion, 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302, Kubota L39, Kubota L3940, Kubota L40
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Crown wheel 21T / 18T + pinion shaft 8T / 18T / Kubota L39 / L3940 / L4060 / M4700 / M5000 / M6060

Product code: 5-19-127-10
Brand 4FARMER
Country of production 4FARMER
View other model
1 person purchased this product
zł1,900.00
Includes VAT 23%

Lowest price from 30 days: zł1,900.00

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Product description

Crown wheel with front axle drive pinion (seal 5-08-106-12 , W9501-53020 3A021-44120) for Kubota tractors of the Kubota L39, Kubota L3940, Kubota L4060, Kubota M4700, Kubota M5000, Kubota M6060 series and others.

The crown wheel with the pinion is a part of the differential mechanism responsible for transferring the drive from the engine drive shafts to the road wheels. In addition to transferring the drive , the shaft + crown wheel drive unit increases the torque transmitted by the longitudinal shaft to the transverse shaft while changing the direction of rotation.

Roller dimensions :

  • total length: 158 mm,
  • helical gear diameter: 29 / 52 mm,
  • helical gear width: 30 mm,
  • cutter diameter: 22 mm (measured with teeth), 19 mm (measured between teeth),
  • cutter working length: 30 mm,
  • thread: M22 x 1.5 mm,
  • thread length: 15 mm,
  • number of teeth: 8T / 18T,
  • original part numbers: 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302.

Dimensions of the crown wheel :

  • outer diameter: 110 mm,
  • inner diameter: 45 mm (measured with teeth), 50 mm (measured between teeth),
  • height: 25 / 38 mm,
  • number of teeth: 21T (OUT) / 18T (IN),
  • original part numbers: 3A021-42300, 3A041-42300, 3A022-42300, 3A022-42302.

Tractor models :

Kubota :

  • Kubota L39,
  • Kubota L3940,
  • Kubota L4060,
  • Kubota M4700,
  • Kubota M5000,
  • Kubota M6060.

The first signs of damage to the drive unit, crown wheel or pinion shaft are the observation of play in the main gear, or a distinct knocking sound when starting and an increased noise level during operation.

Warehouse :
M01:F71:S03

Specifications

Condition
New

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Questions & Answers

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

User
Ekspert Traktor.com.pl – Doradca techniczny • 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
Ekspert Traktor.com.pl – Doradca techniczny • 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
Ekspert Traktor.com.pl – Doradca techniczny • 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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