2Bros Parts

TOP END PISTON & GASKET KIT 78MM KTM EXC-F 250 14-16, ATHENA P5F0780074001C, SET C

£240.12Only 1 left

4.4 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

ATHENA Top End Piston Kit includes a forged 4-stroke piston and top end gasket kit. The piston features a special high-performance aluminum alloy with high silicon content, produced with state-of-the-art CNC machines. Piston rings are made in Japan with wear-resistant coatings (PVD or chromium nitride) for increased durability. Gasket kits are developed with extensive experience and technological advancement, utilizing precise laser cutting and advanced materials for optimal sealing. Technical features: Big End Pin Diameter: 16x9x38.2 mm Bore Diameter: 77.97 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-T1010.C_ATH
Brand
Athena
Availability
In Stock (1)
Variant Id
309804
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Top End Piston and Gasket Kit - Enhance Your Engine's Performance

This Athena Top End Piston Kit provides the perfect combination of essential engine components for your motorcycle. Included in this comprehensive set is a high-performance forged 4-stroke piston and a precision-engineered top end gasket kit. Athena meticulously studies, develops, and tests all piston technologies and materials internally, while also engineering the entire development of compatible gaskets. This integrated approach ensures a perfectly tuned kit that delivers superior performance and maximum reliability after piston replacement.

Key Features and Benefits:

  • Forged 4-Stroke Piston: Manufactured using state-of-the-art numerical control (CNC) machines from a special high-performance aluminum alloy with a high silicon content. This provides OE-level reliability with enhanced resistance and excellent performance.
  • Optimized Profile: The piston features a perfectly smooth profile designed to ensure a regular flow and perfect flame propagation.
  • Friction Reduction: Some piston skirts are treated with a molybdenum disulfide coating applied by screen printing, further reducing friction to boost performance and durability.
  • High-Quality Piston Rings: Made in Japan, the included piston rings offer reduced friction with the cylinder for higher performance. They feature wear-resistant coatings (PVD or chromium nitride) to increase their lifespan and durability.
  • Reliable Gasket Kit: Developed with over 40 years of industry experience, Athena gasket kits are renowned for their reliability. They are produced following strict manufacturer parameters, utilizing the latest generation lasers for perfect cutting quality.
  • Advanced Sealing: Athena employs a wide availability of raw materials, performs surface treatments to compensate for irregularities, and follows material stress-relieving processes to improve sealing in critical areas.

Technical Specifications:

  • Piston Type: Forged
  • Bore Diameter: 77.97 mm
  • Number Of Segments: 2
  • Piston Pin Type: Biconical
  • Compression Height: 19.40 mm
  • Compression Ratio: 13.9:1
  • Displacement: 250 cc
  • Big End Pin Diameter: 16x9x38.2 mm
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call or email us with your make, model and year and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

More answers in our FAQ.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1