Rings D1403, V1903, 16427-21110, Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201, Kubota GT-19, Kubota GT-21, Kubota
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  • Rings D1403, V1903, 16427-21110, Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201, Kubota GT-19, Kubota GT-21, Kubota
  • Rings D1403, V1903, 16427-21110, Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201, Kubota GT-19, Kubota GT-21, Kubota
  • Rings D1403, V1903, 16427-21110, Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201, Kubota GT-19, Kubota GT-21, Kubota
  • Rings D1403, V1903, 16427-21110, Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201, Kubota GT-19, Kubota GT-21, Kubota

Piston rings / Ø 80 mm / STD / Kubota D1403 / V1903 / Kubota GL19 / GL21 / GL200 / GL201 / L2500 / L3600 / L3710 / L4200

Product code: D1403_PR
zł72.36 netto
zł89.00
Includes VAT 23%

Lowest price from 30 days: zł89.00

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Product description

Piston ring set (piston 16427-21110, head gasket 16427-03310) with a diameter of 80 mm for Kubota tractors of the Kubota GT-19, Kubota GT-21 , Kubota GL19, Kubota GL21, Kubota GL200, Kubota GL201 , Kubota L2500 , Kubota L3600, Kubota L3710, Kubota L4200 series with Kubota D1403, Kubota V1903 engines .

Piston rings seal the space between the piston and cylinder walls. During combustion of the fuel mixture in the engine chamber, chemical energy is exchanged for mechanical energy, which is why the tightness of these two components is crucial. Another important role of piston rings in an engine is to wipe excess oil from the cylinder walls during piston movement, ensuring proper lubrication. There are three basic types of rings in combustion engines:

  • sealing rings,
  • scraper rings,
  • compression-scraper rings.

When replacing the rings, pay particular attention to the order in which they are positioned on the piston. Install the rings in the correct order: the oil control ring first, the compression ring second, and the oil seal ring third.

Dimensions :

  • diameter: 80 mm,
  • thickness: 2.50 / 2.00 / 5.00 mm.
  • nominal size / standard,
  • the set includes 3 rings, a set for one piston,
  • original part numbers: 16427-2105,
  • comparison numbers: 16108001-00.

Engine models :

Kubota :

  • Kubota D1403,
  • Kubota V1903.

Engine models :

Kubota :

  • Kubota GL19,
  • Kubota GL21,
  • Kubota GL200,
  • Kubota GL201,
  • Kubota GT-19,
  • Kubota GT-21,
  • Kubota L2500,
  • Kubota L3600,
  • Kubota L3710,
  • Kubota L4200.

The first signs of piston ring wear include increased fuel consumption, loss of engine oil, loss of power, black smoke from the exhaust pipe when the engine is hot, rough idling, an unusual, easily audible noise from the engine area, loss of power, and difficulty starting the engine. All symptoms should be discussed with a professional service center for proper diagnosis and inspection of the engine to determine whether ring replacement or engine overhaul is necessary.

Magazine : K18:F36:S01

*The 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
Engine model
- Kubota D1403
Production
Substitute
Parts
Engine
Tractor models
Kubota GT21, Kubota GT19, - Kubota L2500, - Kubota L4200, - Kubota GL200, - Kubota L3600, - Kubota L3710, - Kubota GL19, Kubota GL21, Kubota GL201
Thickness (mm)
2.00, 2,50, 5
Diameter (mm)
80
Pin diameter (a) (mm)
24.95
Comparison numbers
16106801-00
Original Part Number (OEM)
16427-2105
Number of rings in the set (pcs)
3

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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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