My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Wiseco Pistons K103 61.5mm 2-Stroke Top End Piston Kit for Kawasaki Mach III

(1969-1975 Kawasaki H1 Mach III; 1994-1996 Kawasaki EX500 Ninja 500; 1976 Kawasaki KH500)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

K103
10 reviews
Sale Price

$491.99

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco K103 piston kit is engineered specifically for Kawasaki 500cc 2-stroke motorcycles, featuring a precision 61.5mm bore diameter. Designed for the legendary Kawasaki Mach III series, this top-end piston kit delivers the performance and durability demanded by vintage Japanese sportbike enthusiasts.

Advanced Forged Construction:

  • Dedicated aerospace-grade aluminum alloy forgings provide superior strength-to-weight ratio compared to cast pistons
  • Optimized dome geometry promotes improved flame travel for efficient combustion
  • Precision-engineered skirt profiles ensure stability and smooth operation within the cylinder bore
  • Application-specific installed clearances maximize power output, minimize wear, and provide optimal sealing at operating temperature
  • Forged construction withstands the thermal and mechanical stress of high-performance 2-stroke operation

Fitment: Compatible with Kawasaki 500S, 500H1, 500KH, and Mach III models from 1969-1976. This kit includes all necessary components for a complete top-end piston installation.

Wiseco pistons are the choice of professional engine builders and performance enthusiasts who demand reliability and proven performance from their vintage motorcycle restorations and builds.

Products specifications

Fits

1969-1975 Kawasaki H1 Mach III; 1994-1996 Kawasaki EX500 Ninja 500; 1976 Kawasaki KH500

quick and easy! had no problems at all

Best prices on the net

Easy to order

Descriptions of the item is vague at best.

please have driver call opon arivial 484 767 46 37

quick , easy , priced right

painless

Good prices and brands.

It was great

Of 6 other vendors I'd found, every one listed the exact same price for the product. Autoplicity was well over 10% less. Although it's like an instinct for me to shop around & compare prices, I would expect that Autoplicity will be the hands down winner on any & all future purchases. I don't know how they do it...but who am I to question them saving me lots of money!!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy