Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299
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  • Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299
  • Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299
  • Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299
  • Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299

Thrust ring 54.40 x 2.20 mm / LS PLUS 70 / LS PLUS 80 / LS PLUS 90 / TRG821 / 40030299

Product code: 40030299
Brand
Country of production
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zł17.38
Includes VAT 23%

Lowest price from 30 days: zł17.38

Product description

O- ring stop ring ( 40117113 ) for three-point linkage arms with an internal diameter of 54.40 mm and a height of 6.80 mm for LS Tractors of the LS PLUS70, LS PLUS80, LS PLUS90 series and others.

The back- up ring is a rigid ring, mostly of plastic, that protects the O-ring seals from damage caused by the high pressure and temperature inside the hydraulic system during operation. The Back-up-ring is a ring whose main task is to prevent the O-ring from being pressed into the gap between the sealed surfaces and protects the sealant from changing shape, which is possible when the seal is subjected to high pressure and temperature. When the pressure acts on the O-ring from two directions, we use a back-up ring on both sides of the O-Ring seal.

Dimensions:

  • inner diameter: 54.40 mm,
  • thickness: 2.20mm,
  • height: 6.80mm,
  • comparative numbers: 40030299.

Tractor models :

LS Tractor :

  • LS PLUS70,
    LS PLUS80,
    LS PLUS90.

Warehouse :
M01:M26:S04
L01:B231

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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