Prox Cast Piston Kit 66.95mm
Prox Cast Piston Kit 66.95mm
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
The Prox Cast Piston Kit provides reliable performance and durability for your 2-stroke engine. Engineered with enhanced features and high-quality materials, this piston kit ensures optimal engine function and longevity. Prox pistons deliver consistent results, whether you're maintaining your ride or enhancing its capabilities.
Description
Prox cast pistons are designed to closely mirror OEM specifications, with occasional performance-driven adjustments made by Prox engineers. Manufactured using gravity casting and a premium aluminum alloy containing approximately 18% silicon, these pistons offer exceptional stability. The silicon content minimizes thermal expansion, contributing to a more consistent fit and performance across varying engine temperatures. This piston kit is suitable for both cast iron and Nikasil cylinder bores. For Nikasil cylinders, Prox provides a range of oversizes graded in A/B/C/D, increasing in 0.01mm increments, ensuring a precise fit for your specific needs. The standard size C piston with a 66.95mm diameter ensures compatibility and efficient operation.
Features & highlights
- Engineered to closely match OEM designs with performance enhancements.
- Crafted from high-silicon aluminum alloy for superior stability and reduced thermal expansion.
- Manufactured using gravity casting for consistent material density and strength.
- Suitable for both cast iron and Nikasil cylinder bores, offering versatility.
- Available in multiple oversizes (A/B/C/D) for Nikasil cylinders, ensuring a precise fit (0.01mm increments).
- Moly coated skirt to reduce friction and improve wear resistance.
Technical specifications
- Brand: Prox
- Part Number: 09101538
- Engine Type: 2-Stroke
- Piston Diameter: 66.95 mm
- Piston Material: Cast Aluminum Alloy
- Piston Size: Standard Size C
- Ring Material: Steel
- Skirt Coating: Moly Coated
Important to know
This kit includes all necessary components for piston replacement. Please verify your cylinder bore size before ordering to ensure correct fitment. Proper installation is crucial for optimal performance and longevity.
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
01.3311.C
Piston Kit
Aluminum Alloy, Cast
Steel
Standard Size C
66,95 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.

