Prox Cast Piston Kit 67.45mm - Standard Size B
Prox Cast Piston Kit 67.45mm - Standard Size B
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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 performance and durability, this kit provides reliable power and extended engine life. Get the most out of your machine with Prox's trusted quality.
Description
The Prox Cast Piston Kit is engineered to deliver exceptional performance and reliability for your two-stroke engine. These pistons closely mirror OEM designs but incorporate improvements identified by Prox engineers for optimized performance. Manufactured using gravity casting with a high-silicon aluminum alloy (approximately 18% silicon), Prox cast pistons offer superior stability and reduced thermal expansion. This makes them ideal for both cast iron and Nikasil cylinder bores. For Nikasil cylinders, Prox provides a range of oversizes, graded A/B/C/D, increasing in 0.01mm increments, ensuring a precise fit. Equip your engine with a Prox piston for enhanced power and longevity.
Features & highlights
- Engineered for superior performance and reliability.
- High-silicon aluminum alloy construction for stability and reduced thermal expansion.
- Designed for both cast iron and Nikasil cylinder bores.
- Available in standard and oversized options (A/B/C/D) for Nikasil cylinders.
- Mirrors OEM designs with performance-enhancing improvements.
- Manufactured using gravity casting.
Technical specifications
- Brand: Prox
- Engine Type: 2-Stroke
- Piston Diameter: 67.45 mm
- Piston Material: Cast Aluminum Alloy
- Piston Size: Standard Size B
- Ring Material: Steel
- Units: Kit
Important to know
This kit includes the piston and rings. Wrist pin and circlips may be sold separately. Please verify compatibility with your specific engine model before installation.
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
01.6317.B
Piston Kit
Aluminum Alloy, Cast
Steel
Standard Size B
67,45 mm
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.

