Wiseco 1340cc High-performance Piston Kit
Wiseco 1340cc High-performance Piston Kit
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Estimated delivery: Feb 04 - Feb 08
About this product
About this product
Upgrade your engine's performance with the Wiseco High-Performance Piston Kit. Forged for superior strength and reliability, this kit provides everything you need for a top-end rebuild. Experience enhanced power and durability with components engineered for demanding applications.
Description
The Wiseco High-Performance Piston Kit, specifically the K1641 model, is designed for enthusiasts and professionals seeking to maximize engine output and longevity. This kit features pistons forged from high-silicon aluminum alloy, providing exceptional strength and dependability under high stress. The pistons are engineered with a flat top design, rated at -1.5cc. The kit is designed for a 1340cc displacement engine, featuring a 3.508" bore size with a +0.010" oversize. Included is an X-Ring package (0.062" top ring, 0.062" compression ring, and 0.158" oil ring) that optimizes sealing and reduces friction, resulting in improved performance and reduced wear. Built to exacting standards in the USA, this kit ensures a precise fit and reliable operation. The 8.5:1 compression ratio provides a boost in power while maintaining engine safety and reliability.
Features & highlights
- Forged from high-silicon aluminum alloy for maximum strength and dependability.
- Includes X-Ring package for improved sealing and reduced friction.
- Kit includes pistons, rings, retainer clips, and chrome piston pins for a complete rebuild.
- Designed for a 1340cc engine to boost performance.
- Features a Flat Top piston design rated at -1.5cc.
- Made in the USA ensuring top-quality craftsmanship.
Technical specifications
- Brand: WISECO
- MPN: K1641
- Bore Size: 3.508" (+0.010" Oversize)
- Displacement: 1340 cc
- Compression Ratio: 8.5:1
- Piston Material: Forged 2618 Aluminum
- Piston Diameter: 3.5055"
- Piston Head Shape: Flat Top -1.5 cc
- Stroke Length: 4-1/4"
- Skirt Coating: Non-Coated
- Engine Type: 4-Stroke
- Type: Top End
- Units: Kit
- Color/Finish: Aluminum
Important to know
This is a top-end rebuild kit that includes pistons, rings, retainer clips, and piston pins. Additional engine components are required for a complete engine overhaul and are not included in this kit.
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
WISECO
WK1641
Rebuild Kit
3,508"
8.5:1
1340 cc
Forged 2618 Aluminum
4-1/4"
3.5055"
+0.010"
Non-Coated
4-Stroke
Flat Top -1.5 cc
Top End
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.

