Prox Cast Piston Kit - 67.44mm
Prox Cast Piston Kit - 67.44mm
About this product
About this product
Upgrade your two-stroke engine with the Prox Cast Piston Kit, engineered for superior performance and durability. Designed with meticulous attention to detail, this piston kit delivers enhanced stability and reliability for demanding applications. Whether you're a professional racer or an avid enthusiast, Prox pistons ensure optimal engine function.
Description
The Prox Cast Piston Kit is manufactured using gravity casting and a high-silicon aluminum alloy, containing approximately 18% silicon. This silicon content significantly reduces thermal expansion, ensuring consistent performance under high temperatures. The piston designs closely mirror OEM configurations, with strategic adjustments made by Prox engineers to boost overall performance. Specifically designed for two-stroke engines with both cast iron and Nikasil cylinder bores, Prox offers a range of oversizes (A/B/C/D) for Nikasil cylinders, each increasing by 0.01mm in diameter. This piston kit, with a diameter of 67.44mm, combines advanced materials and precise engineering to provide an exceptional upgrade for your engine. Upgrade to Prox and experience the difference in power and longevity.
Features & highlights
- Enhanced Stability: Prox cast pistons provide exceptional stability for reliable performance.
- High-Silicon Alloy: Constructed from aluminum alloy with approximately 18% silicon to minimize thermal expansion.
- OEM-Similar Design: Engineered with designs similar to OEM configurations, optimized for increased performance.
- Oversize Options: Available in A/B/C/D oversizes for Nikasil cylinder bores, increasing by 0.01mm each.
- Versatile Compatibility: Suitable for both cast iron and Nikasil cylinder bores.
- Precision Manufacturing: Made using gravity casting for consistent quality and dimensions.
Technical specifications
- Brand: Prox
- Part Number: 09101493
- Engine Type: 2-Stroke
- Piston Diameter: 67.44 mm
- Piston Material: Cast Aluminum Alloy
- Piston Size: Standard Size A
- Ring Material: Steel
Important to know
This kit includes the piston, rings, wrist pin, and circlips. Please ensure compatibility with your specific engine 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
Specifications
PROX
01.6317.A
Piston Kit
Aluminum Alloy, Cast
Steel
Standard Size A
67,44 mm
2-Stroke
Kit
Reviews


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.
Based in Denmark
Fast customer support
Over 100.000 Products
2-Year Full Warranty
Your peace of mind is our priority. Every product in our shop comes with a comprehensive 2-year warranty, so you can hit the road with full confidence.
Support in Danish, Swedish, German & English
Whether you are upgrading your exhaust or choosing a new helmet, our team of seasoned riders is ready to provide professional guidance for your specific bike.
Free Shipping Over 200€ (EU)
Shop your favorite gear without worrying about extra costs. We offer free shipping on all orders over 200€ (EU), ensuring your parts reach you safely and affordably.
Authorized Parts Europe Dealer
As a certified Parts Europe supplier, we guarantee 100% authentic, high-quality motorcycle parts and accessories directly from the world's leading manufacturers.

