Prox Piston Kit - 76.80mm Standard Bore
Prox Piston Kit - 76.80mm Standard Bore
Available in stock (6)
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your engine's performance with the Prox Piston Kit. This kit provides a reliable and high-performance replacement for your OEM piston, ensuring optimal engine function and longevity. Built to exacting standards, the Prox piston kit delivers superior quality and performance.
Description
The Prox Piston Kit is engineered to meet or exceed OEM specifications, offering a direct replacement for your original piston. Manufactured in Japan, each piston is cast from a high-silicon-content aluminum alloy and then CNC-machined to achieve extremely tight tolerances. The aluminum alloy construction ensures excellent heat dissipation and durability, while the precision machining guarantees optimal fit and performance. The 76.80mm standard bore size and 13.5:1 compression ratio help restore your engine's power and efficiency. The moly coated skirt reduces friction and wear, extending the life of the piston and cylinder. This kit is designed for 4-stroke engines and is a standard size B piston.
Features & highlights
- Manufactured in Japan to ensure top-tier quality and precision.
- Cast from high-silicon-content aluminum alloy for superior strength and heat resistance.
- CNC-machined to extremely close tolerances for optimal fit and performance.
- Moly coated skirt reduces friction and wear, maximizing engine life.
- Complete kit includes piston, ring kit, wrist pin, and circlips for a comprehensive replacement.
- Designed as a direct OEM replacement for easy installation.
Technical specifications
- Brand: Prox
- Part Number: 01.1343.B
- Bore Size: 76.80 mm
- Piston Size: 76.78 mm
- Compression Ratio: 13.5:1
- Engine Type: 4-Stroke
- Piston Material: Aluminum Alloy, Forged
- Skirt Coating: Moly Coated
- Type: Standard Size B
- Units: Kit
- Bore - Oversize: Standard
Important to know
This kit includes everything needed for a standard piston replacement: piston, ring kit, wrist pin, and circlips. Professional installation is recommended to ensure proper fitment and performance.
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
01.1343.B
Piston Kit
76,80 mm
13.5:1
Aluminum Alloy, Forged
76.78 mm
Moly Coated
4-Stroke
Standard Size B
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.

