My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Wiseco 4248M08300 Kawasaki Forged Piston Kit - KZ900/KZ1000 83mm 13.5 1 P1425

(1973-1977 Kawasaki KZ900/Z1; 1977-1980 Kawasaki KZ1000A/J; 1978-1980 Kawasaki KZ1000D Z1R)

Manufacturer

Part Number

4248M08300
Sale Price

$237.99

Estimated ship date Tuesday, November 24

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 4248M08300 is a high-performance forged piston kit designed for Kawasaki KZ900 and KZ1000 engines. This is a big bore kit featuring an 83mm bore diameter (+17mm over stock) and an aggressive 13.5:1 compression ratio, making it an ideal choice for serious performance builds and racing applications. Wiseco part number P1425 / 3268XG.

Kit Includes:

  • Forged piston(s) with rings
  • Wrist pins
  • Circlips
  • Top-end gasket set

Key Features:

  • Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, and improved heat transfer
  • Diamond-turned CNC finish ensures precise sizing with zero variation across all pistons
  • Innovative forging design and optimized piston skirt geometry maximize horsepower and torque output
  • 13.5:1 compression ratio delivers maximum power potential for race-built engines
  • 83mm (+17mm overbore) — cylinder sleeving is required for this oversize application

Important: This oversize piston kit requires cylinder sleeving. Ensure your machine shop bores and hones cylinders to the correct finished diameter to match the piston specifications before installation.

Products specifications

Fits

1973-1977 Kawasaki KZ900/Z1; 1977-1980 Kawasaki KZ1000A/J; 1978-1980 Kawasaki KZ1000D Z1R

Good pricing

Thx

I received the part number from bayliner to order but it is 2 feet too long , how do I exchange it

FINE

For a little unsure about whether a second package was coming, but Customer Service cleared it up.

good

Fair price, quick delivery

THMotorsports had the part I needed in stock, unlike other suppliers. The price was good and it shipped quickly. I will shop here again.

Paid for 2 day and wasn't worth it other than that the best price out there

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