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Wiseco PK1699 2-Stroke Top End Piston Kit 70mm for Yamaha YZ250 WR250

(1988-1991 Yamaha YZ250; 1991 Yamaha WR250)

Part of: Wiseco Pistons Top End Piston Kit Honda

Other options in this family: Wiseco Pistons PK1659 Wiseco Pistons PK1904 Wiseco Pistons PK1092 Wiseco Pistons PK1401 Wiseco Pistons K1076

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1699
14 reviews
Sale Price

$280.99

Estimated ship date Monday, November 23

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Product Details

The Wiseco PK1699 is a complete 2-stroke top end piston kit designed for the 1988–1991 Yamaha YZ250 and WR250. Built around Wiseco's proven 605M forging at a 70.00mm bore, this kit delivers everything needed for a full top end overhaul or overbore rebuild in a single package.

Key Features:

  • Forged 2-stroke piston manufactured from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, and improved heat transfer
  • 70.00mm (605M) bore — ideal for standard bore rebuilds or overbore applications
  • E-coated piston crown, ring grooves, and pin bore for maximum wear resistance and protection against micro-welding, galling, and detonation
  • Complete kit includes forged piston, high-performance ring set, alloy wrist pin, circlips, and top end gasket set
  • Dedicated forging design optimizes the strength-to-weight ratio for sustained performance
  • Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
  • Engineered and manufactured in the USA at Wiseco's facility in Mentor, Ohio

Wiseco's Pro-Lite 2-stroke piston line is the result of decades of racing development and real-world validation at the highest levels of motocross and off-road competition. The PK1699 kit provides a straightforward, one-stop solution for restoring your top end to peak performance.

Products specifications

Fits

1988-1991 Yamaha YZ250; 1991 Yamaha WR250

Great pricing easy transactions

1st time

Great so far

Your description of your products needs to be improved. Right , Left , front , Back . I had to call to confirm if I was going to order right Item. Turns out without the calling I would have ordered the wrong handle. This is 2016, :) Your order person did take care of me and was very nice . You guys are lucky you have her. I am no family relation, just a new customer.

Fast and easy, I do wish there had been a section for related products. Or "Other costumers liked these simular items"

Thank you

Easy

Very good so far..Thanks......got the item now and was great...Thanks

Was easy to find my original remplacement part and cheap

Quick Order Process!

cheapest price, multiple payment options, shipped very quickly overall good experience

Easy website navigation. Fast checkout. Clear and concise pricing!

I ordered a Jet Powr-Flo, SKU: JET-69190, from Autoplicity and it was at least 40% off the regular JET price. The site was off on all the vehicles the component fits, but I knew what part to get and I'm completely satisfied. My 2008 Mustang is running smoother than ever and wasting less fuel. So for any performance parts I'll search the maker sites first but I'll purchase from Autoplicity first.

No issues at all and a very good price to boot. What could be better? Will definitely order from them again.

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