2Bros Parts

TOP END PISTON & GASKET KIT 78MM KTM SX-F/XC-F 250 13-15, ATHENA P5F0780063001C, SET C

$266.85Only 1 left

4.4 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

Athena Top End Piston Kit includes a forged 4-stroke piston and a top end gasket kit. The piston has a bore diameter of 77.97 mm and a forged construction from a special high-performance aluminum alloy with high silicon content. Some pistons feature a molybdenum disulfide coating on the skirts to reduce friction. The kit includes two Japanese-made piston rings with wear-resistant coatings (PVD or chromium nitride). Athena gasket kits are developed with extensive experience and use advanced laser cutting technology. 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-T1008.C_ATH
Brand
Athena
Availability
In Stock (1)
Variant Id
309798
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Top End Piston & Gasket Kit for 250cc Motorcycles

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 complete top-end gasket set, designed for a perfect fit and optimal engine function. Athena meticulously develops and tests all piston technologies and materials in-house, ensuring compatibility and superior performance when paired with their engineered gasket sets.

Key Features:

  • Forged 4-Stroke Piston: Manufactured using advanced CNC machinery from a special high-performance aluminum alloy with a high silicon content for exceptional durability and performance, matching OE piston reliability while offering increased strength.
  • Optimized Profile: The piston's smooth profile promotes regular airflow and perfect flame propagation for improved combustion efficiency.
  • Friction Reduction: Some piston skirts feature a molybdenum disulfide coating applied via screen printing to further reduce friction, boosting performance and longevity.
  • Premium Piston Rings: Includes Japanese-made piston rings with wear-resistant coatings (PVD or chromium nitride) to minimize friction with the cylinder, thereby increasing performance and extending durability.
  • Reliable Gasket Set: Based on over 40 years of industry experience, Athena gasket kits are engineered with constant technological development and produced to strict manufacturer parameters.
  • Precision Sealing: Utilizes latest-generation lasers for perfect cutting quality and employs surface treatments and material stress-relieving processes to ensure optimal sealing in critical areas.

Technical Specifications:

  • Piston Type: Forged
  • Bore Diameter: 77.97 mm
  • Number of Piston Rings: 2
  • Piston Pin Type: Biconical
  • Compression Height: 19.40 mm
  • Compression Ratio: 13.9:1
  • Big End Pin Diameter: 16x9x38.2 mm
  • Displacement: 250 cc

Note: Products designed for competitive use or high-performance applications may not be covered by standard warranty unless a clear manufacturing fault is present. Always ensure proper installation and adhere to local regulations regarding vehicle modifications.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

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

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

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.

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.

Trade pricing available

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

Apply for Trade
1