Head gasket / Yanmar 4TNA78U / 4TNA78-RN 4 / Yanmar FX26 / FX28 / FX285 / FX305 / FX32 / FX42 / FX335 / FX435
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  • Head gasket / Yanmar 4TNA78U / 4TNA78-RN 4 / Yanmar FX26 / FX28 / FX285 / FX305 / FX32 / FX42 / FX335 / FX435
  • Head gasket / Yanmar 4TNA78U / 4TNA78-RN 4 / Yanmar FX26 / FX28 / FX285 / FX305 / FX32 / FX42 / FX335 / FX435

Head gasket / Yanmar 4TNA78U / 4TNA78-RN 4 / Yanmar FX26 / FX28 / FX285 / FX305 / FX32 / FX42 / FX335 / FX435

Product code: 129553-01350
Brand 4FARMER
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7 people purchased this product
zł161.79 netto
zł199.00
Includes VAT 23%

Lowest price from 30 days: zł199.00

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Product description

Head gasket with index 129553-01350 for Yanmar 4TNA78-U and 4TNA78-RN4 series engines. Made of durable material, it ensures tightness of cylinders, cooling and lubrication channels, as well as thermal insulation. Ideal for Yanmar FX-series tractors - effectively prevents oil and coolant leaks, which translates into the reliability of the drive unit.

Dimensions :

  • Length: 400mm,
  • Width: 160mm,
  • Piston hole diameter: 79x30x83 mm,
  • Index: 129553-01350,

Engine model:

  • Yanmar 4TNA78U,
  • Yanmar 4TNA78-RN 4,

Tractor models :

  • Yanmar FX26,
  • Yanmar FX28,
  • Yanmar FX285,
  • Yanmar FX305,
  • Yanmar FX32,
  • Yanmar FX42,
  • Yanmar FX335,
  • Yanmar FX435.

Magazine : M01:D12:S02

*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
Yanmar 4TNA78-RN 4
Seal type
Head gasket

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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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