Prox 400cc Piston Kit - Standard Size
Prox 400cc Piston Kit - Standard Size
Available in stock (9)
-
Estimated delivery: Feb 04 - Feb 08
About this product
About this product
Upgrade your 4-stroke engine with the Prox Piston Kit, designed for optimal performance and durability. This kit provides all the necessary components for a complete piston replacement, ensuring your engine runs smoothly and efficiently. Experience improved power and reliability with this high-quality piston kit.
Description
The Prox Piston Kit is precision-engineered using state-of-the-art CNC equipment and manufactured from a low expansion, low friction aluminum alloy. This ensures minimal wear and maximum performance. The standard size C piston is designed for a 400cc displacement engine with a 90.00 mm bore size and a 12.2:1 compression ratio. Restore your engine's power and efficiency with this complete piston solution. The 89.98mm piston size guarantees a precise fit.
Features & highlights
- Complete kit includes piston, rings, wrist pin, and circlips for a comprehensive replacement.
- Precision machined on state-of-the-art CNC equipment for exacting tolerances and optimal performance.
- Crafted from low expansion, low friction aluminum alloy to minimize wear and maximize engine life.
- Designed for 400cc engines, ensuring a perfect fit and optimal compression.
- Improves engine performance and restores lost power due to worn pistons.
- Non-coated skirt design for efficient heat transfer and reduced friction.
Technical specifications
- Brand: Prox
- Part Number: 01.3420.C
- Bore Size: 90.00 mm
- Piston Size: 89.98 mm
- Compression Ratio: 12.2:1
- Displacement: 400cc
- Piston Material: Aluminum Alloy
- Skirt Coating: Non-Coated
- Type: Standard Size C
Important to know
Ensure compatibility with your specific engine model before installation. Professional installation is recommended for optimal 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
01.3420.C
Piston Kit
90,00 mm
12.2:1
400 cc
Aluminum Alloy
89.98 mm
Non-Coated
Standard Size C
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.

