Prox Piston Kit - 400cc, 90.00mm Bore
Prox Piston Kit - 400cc, 90.00mm Bore
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About this product
About this product
Upgrade your 4-stroke engine with the Prox Piston Kit, engineered for optimal performance and durability. This kit provides a reliable and high-quality replacement for your original equipment, ensuring a precise fit and improved engine efficiency.
Description
The Prox Piston Kit is manufactured in Japan and designed as a premium OEM replacement. It's cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications. The piston is then CNC-machined to extremely close tolerances, ensuring optimal performance and longevity. The kit is designed for 400cc 4-stroke engines with a 90.00mm bore and a compression ratio of 12.2:1. Installing this piston kit will help restore lost compression and revitalize your engine's power. This standard size B piston measures 89.97mm in diameter, ensuring compatibility and proper fitment.
Features & highlights
- Manufactured in Japan to meet or exceed OEM standards, ensuring top-tier quality and reliability.
- Cast from high-silicon-content aluminum alloy for superior strength and heat resistance.
- CNC-machined to extremely close tolerances for precise fit and optimal engine performance.
- Complete kit includes piston, ring kit, wrist pin, and circlips for a comprehensive replacement solution.
- Designed for 4-stroke engines with a 90.00mm bore and 400cc displacement.
- Forged aluminum alloy construction for enhanced durability and performance.
Technical specifications
- Brand: PROX
- Part Number: 01.3420.B
- Bore Size: 90.00 mm
- Compression Ratio: 12.2:1
- Displacement: 400 cc
- Engine Type: 4-Stroke
- Piston Diameter: 89.97 mm
- Piston Material: Aluminum Alloy, Forged
- Piston Size: 89.97 mm
- Skirt Coating: Non-Coated
- Type: Standard Size B
- Units: Kit
Important to know
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
01.3420.B
Piston Kit
90,00 mm
12.2:1
400 cc
Aluminum Alloy, Forged
89.97 mm
89,97 mm
Non-Coated
4-Stroke
Standard Size B
Kit
Reviews
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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.
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