2Bros Parts

TOP END PISTON & GASKET KIT 78MM KTM SX-F/XC-F 250 13-15, ATHENA P5F0780063001B, SET B

$266.85Only 1 left

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Delivery to United States 5–8 business days

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Athena Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. Piston bore diameter is 77.96 mm. Piston features a special high-performance aluminum alloy with high silicon content. Some pistons have a molybdenum disulfide coating on the skirts to reduce friction. Piston rings are Made in Japan and feature wear-resistant coatings (PVD or chromium nitride) for increased durability. Gasket kits are developed with extensive experience and utilize advanced laser cutting technology. Technical features include: Big End Pin Diameter 16x9x38.2 mm, Compression Height 19.40 mm, Compression Ratio 13.9:1, Displacement 250 cc, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged.

Specifications
SKU
56-T1008.B_ATH
Brand
Athena
Availability
In Stock (1)
Variant Id
309797
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Top End Piston Kit for KTM SX-F/XC-F 250

Enhance your motorcycle's engine performance and reliability with the Athena Top End Piston Kit. This comprehensive kit combines a high-performance forged piston with a precisely engineered top-end gasket set, offering a perfect synergy for optimal results. Athena's commitment to quality is evident in every component, from the internal development of piston technologies to the meticulous design of compatible gaskets.

The forged 4-stroke piston is manufactured using advanced numerical control (CNC) machines from a special high-silicon aluminum alloy. This material ensures OE-level reliability while delivering superior resistance and performance. The piston's smooth profile promotes consistent airflow and efficient flame propagation. Some pistons feature a molybdenum disulfide coating on the skirts to further reduce friction, boosting performance and durability. The included piston rings, manufactured in Japan, are equipped with wear-resistant coatings (PVD or chromium nitride) to increase their lifespan and maintain cylinder contact for higher performance.

Athena's gasket kits are built on over 40 years of industry experience and continuous technological advancement. Developed by an in-house team of engineers and designers, and produced to strict manufacturer parameters, these gaskets ensure exceptional sealing and reliability. The use of state-of-the-art laser cutting technology guarantees precision, while a wide selection of raw materials and surface treatments enhance sealing in critical areas.

Key Features:

  • Forged 4-stroke piston for increased strength and performance.
  • High-silicon aluminum alloy for excellent durability.
  • Smooth piston profile for optimal airflow and combustion.
  • Molybdenum disulfide coating on some piston skirts reduces friction.
  • High-performance, wear-resistant piston rings (Made in Japan).
  • Precisely engineered top-end gasket set for reliable sealing.
  • Laser-cut gaskets ensure perfect fit and quality.

Technical Specifications:

  • Big End Pin Diameter: 16x9x38.2 mm
  • Bore Diameter: 77.96 mm
  • Compression Height: 19.40 mm
  • Compression Ratio: 13.9:1
  • Displacement: 250 cc
  • Number of Piston Rings: 2
  • Piston Pin Type: Biconical
  • Piston Type: Forged
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Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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