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Wiseco Pistons PK1019 ATV Piston Kit 83.5mm Yamaha YFM350

(Yamaha YFM350 Raptor 2005-13, YFM350FW Big Bear 4x4 1989-99, YFM350X Warrior 1987-2004, YFM350 Grizzly 4x4 Auto 2008-13 + 3 more models)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1019
14 reviews
Sale Price

$246.99

3 left at this price

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

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Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco PK1019 is a premium 83.5mm bore piston kit designed for Yamaha YFM350 ATVs, featuring a 10.25:1 compression ratio for improved performance. This complete top-end kit includes a forged piston assembly and all necessary gaskets for a complete rebuild.

Key Features:

  • 83.5mm bore diameter with 10.25:1 compression ratio
  • 100% forged in-house construction for maximum strength and durability
  • Optimized grain structure aligned to part features for superior impact resistance
  • Includes top-end gasket kit for complete installation
  • Proprietary skirt coating for reduced friction and wear
  • Engineered strength-to-weight ratio for maximum performance

Wiseco's forging process creates pistons with condensed, aligned grain structure that delivers higher mechanical properties compared to cast alternatives. This results in superior resistance to fatigue and catastrophic failure under high-performance conditions. Each piston is designed and tested in-house to meet the demanding requirements of motorsport applications.

This kit provides everything needed for a professional-quality top-end rebuild on your Yamaha YFM350 ATV.

Products specifications

Fits

Yamaha YFM350 Raptor 2005-13, YFM350FW Big Bear 4x4 1989-99, YFM350X Warrior 1987-2004, YFM350 Grizzly 4x4 Auto 2008-13, YFM350 Grizzly Auto 2008-13, YFM350 Grizzly IRS 4x4 Auto 2008-12, YFM350U Big Bear 2x4 1996-99

Size

83.5

Fantastic Deal!

Easy to use. Shipping was on time.

smooth and easy

Smooth and straight forward purchasing and checkout procedures.

good price, 20% off was a bit deceiving

So Far So Good

Fast and easy so far.

Awesome

Fast process and simple input

Pretty good pricing on parts.

Easy to find part. Quick check out. Lots of payment options

Quick and easy

The item arrived fast and in good condition. There however seems to be a glitch with the scale the first time we weighed something. After we shut it off and then back on it seemed to be OK.

Easy order placement, fast shipment

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