Prox Cast Piston Kit - 39.47mm
Prox Cast Piston Kit - 39.47mm
In stock
-
Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your two-stroke engine with the Prox Cast Piston Kit, designed for optimal performance and durability. Crafted from high-quality aluminum alloy, this piston kit ensures reliable operation and improved engine efficiency. Experience the difference a precision-engineered piston can make in your machine's power and longevity.
Description
The Prox Cast Piston Kit is engineered with designs often mirroring OEM configurations, enhanced where possible by Prox engineers for superior performance. Manufactured using gravity casting with an aluminum alloy containing approximately 18% silicon, these pistons offer exceptional stability and reduced thermal expansion. This silicon content is crucial, providing dimensional stability under high operating temperatures. Specifically designed for two-stroke engines, Prox pistons are suitable for both cast iron and Nikasil cylinder bores. For Nikasil cylinders, the kit is available in multiple oversizes (A/B/C/D), each incrementing by 0.01mm in diameter, ensuring a precise fit for your specific engine requirements. The moly coated skirt provides improved wear resistance and reduced friction.
Features & highlights
- Engineered for optimal performance and durability.
- Manufactured from high-quality aluminum alloy with 18% silicon content for stability and reduced thermal expansion.
- Suitable for both cast iron and Nikasil cylinder bores.
- Available in multiple oversizes (A/B/C/D) for Nikasil cylinders, with 0.01mm increments.
- Moly coated skirt for reduced friction and enhanced wear resistance.
- Designed to closely match OEM specifications, with performance-enhancing modifications.
Technical specifications
- Brand: Prox
- Engine Type: 2-Stroke
- Piston Diameter: 39.47 mm
- Piston Material: Cast Aluminum Alloy
- Piston Size: Standard Size B
- Ring Material: Steel
- Skirt Coating: Moly Coated
Important to know
Ensure compatibility with your specific engine model and cylinder type before installation. Always follow proper installation procedures and torque specifications.
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
PROX
01.6012.B
Piston Kit
Aluminum Alloy, Cast
Steel
Standard Size B
39,47 mm
Moly Coated
2-Stroke
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.

