Athena 250cc 4-stroke Piston Kit
Athena 250cc 4-stroke Piston Kit
In stock
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Estimated delivery: Feb 04 - Feb 08
About this product
About this product
Upgrade your 250cc 4-stroke engine with this high-performance piston kit from Athena. Designed for superior reliability and performance, this kit ensures your off-road motorcycle operates at its peak.
Description
This Athena piston kit is crafted from a high-performance aluminum alloy with a high silicon content, ensuring reliability comparable to OE pistons while providing enhanced resistance and excellent overall performance. The smooth piston profile optimizes flow and ensures perfect flame propagation, resulting in improved combustion efficiency. Specifically designed for 4-stroke off-road motorcycles, these pistons are manufactured using reverse extrusion and precision CNC machining techniques. The included piston rings minimize friction against the cylinder walls, maximizing performance. These Japanese-made segments feature wear-resistant coatings such as PVD or chromium nitride, increasing retention and overall durability. This kit is optimized for engines with a 78.96 mm bore size and a 14.1:1 compression ratio, suitable for 250cc 4-stroke engines. Upgrade to this top-end piston kit from Athena and experience a noticeable boost in power and dependability.
Features & highlights
- High-performance aluminum alloy construction ensures superior strength and durability.
- Optimized piston profile promotes smooth flow and perfect flame propagation.
- Manufactured using reverse extrusion and CNC machining for precise fit and finish.
- Piston rings designed to minimize friction and maximize performance.
- Japanese-made piston segments with wear-resistant coatings (PVD or chromium nitride) for extended life.
- Engineered for 4-stroke off-road motorcycles to boost power and dependability.
- Provides greater resistance and excellent performance.
Technical specifications
- Brand: Athena
- Part Number: 09031738
- Product Name: Piston Kit
- Bore Size: 78.96 mm
- Compression Ratio: 14.1:1
- Displacement: 250 cc
- Engine Type: 4-Stroke
- Piston Material: Forged Aluminum Alloy
- Type: Top End
Important to know
Please ensure compatibility with your specific motorcycle model before installation. Professional installation is recommended.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
ATHENA
P5F0790323002B
Piston Kit
78,96 mm
14.1:1
250 cc
Aluminum Alloy, Forged
4-Stroke
Top End
Kit


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

