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Wiseco Pistons PK1568 ProLite Piston Kit Yamaha - 68.5mm 1995-1998 YZ250 WR250

(1995-1998 Yamaha YZ250; 1995-1997 Yamaha WR250)

Part of: Wiseco Pistons ProLite Piston Kit Yamaha

Other options in this family: Wiseco Pistons 899M05400 Wiseco Pistons PK1502 Wiseco Pistons PK1521 Wiseco Pistons PK1567 Wiseco Pistons PK1504

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1568
11 reviews
Sale Price

$252.99

Estimated ship date Monday, November 23

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Product Details

The Wiseco PK1568 is a ProLite forged piston kit designed for the 1995–1998 Yamaha YZ250 and WR250 two-stroke engines. This kit provides a 68.5mm bore diameter (standard oversize designation 677), making it ideal for top-end rebuilds or overbore applications requiring a precision-engineered replacement piston assembly.

Wiseco's ProLite design reduces reciprocating mass compared to traditional forged pistons, delivering improved throttle response and reduced stress on connecting rod bearings. The forged aluminum construction provides superior strength and heat resistance over cast alternatives, ensuring long service life under high-performance and off-road racing conditions.

Kit Includes:

  • Forged ProLite piston – 68.5mm bore, engineered for the YZ/WR250 two-stroke powerplant
  • Piston ring set – pre-gapped and matched to the 68.5mm bore specification
  • Wrist pin (piston pin) – precision-ground for correct fit and smooth articulation
  • Circlips (retaining clips) – for secure wrist pin retention

Key Specifications:

  • Bore Size: 68.5mm
  • Oversize Code: 677
  • Application: 1995–1998 Yamaha YZ250 / WR250
  • Construction: Forged aluminum alloy
  • Series: Wiseco ProLite

Wiseco is an industry leader in performance forged pistons for powersports applications. The PK1568 kit includes everything needed for a professional-quality top-end piston replacement, restoring engine compression and performance to factory or better-than-factory standards.

Products specifications

Fits

1995-1998 Yamaha YZ250; 1995-1997 Yamaha WR250

Very good service. Did not have all the parts needed but everybody cant have everything.

Descriptions of the item is vague at best.

Fast check-out; no foolish run around.

Very easy

First time using Autoplicity. We shall see......

Nice website! 1. Easy to use and find parts 2. Prices are competitive 3. Shipping is fast. What more can I want?!

very east to use and navigate and prices were fair

Ordered my CTEK battery Charger on Wed night and received it on Fri morning. Super fast shipping. Will definitely buy from again.

Autoplicity was the lowest price vendor that I could find for the fuel jugs I bought from them, and they promptly shipped My order!

Autoplicity is Awesome!!!!! I ordered a Aeromotive Stealth 340hp fuel pump for my 89 Supra Turbo. Not only did they have the best price on the part I ordered, the shipping was the fastest I've seen in a long time from any company. I ordered it on Wednesday, had it shipped to a freinds house where my car is and the part was there Friday morning. I was like DAMN!!!! That was fast I wasn't expecting it till Saturday or even Monday. Luckly my friend was off work that day so he could sign for it. With service like that I will definitely order from them again, even if the part cost a little more, cause I know I will get it ASAP!!!! On top of getting the awesome price, shipping, and customer service, now they are offering another $5.00 off my order. The only thing that could have been better is if they offer Military Discount which I forgot to ask about. Well kids the moral of the story is, that if you don't order from Autoplicity you are just plain DUMB!!!!!!

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