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 PK1020 Top End Piston Kit for Yamaha Bore - YFM350 84.0mm

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

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

PK1020
11 reviews
Sale Price

$246.99

3 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 PK1020 top end piston kit is engineered for Yamaha YFM350 applications with an 84.0mm bore size. This complete kit provides everything needed for a professional-grade top end rebuild, combining race-proven piston technology with premium supporting components.

Kit Includes:

  • High-performance forged piston (4419M)
  • Complete Wiseco top end gasket kit
  • Premium top end needle bearing
  • High-performance ring set
  • High-quality alloy wrist pin

Key Features:

  • Dedicated forging design using aerospace-grade aluminum alloy for superior strength-to-weight ratio
  • Precision CNC machined for exact tolerances and optimal fit
  • Optimized cam profile designed for maximum horsepower and extended service life
  • Advanced ring set engineered for sustained power delivery and extended lifespan
  • Premium gasket materials provide superior sealing that exceeds OEM standards
  • Precision-machined needle bearing with highest quality materials for reduced friction and increased durability

Wiseco pistons are the choice of top racing teams across all motorsport disciplines, bringing championship-winning technology to your ATV rebuild. This complete kit ensures proper component compatibility and eliminates the guesswork of sourcing individual parts.

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

84

very easy to use and fast delivery

easy..............like the free shipping

fast

Ordering was easy and qiuick

Easy

They had what I wanted at price that I was willing to pay for.

If the battery is truly in stock...

Simple!

Thanks

Cheapest price i could find! Great communication, and fast shipping!

Very fast shipping and order processing!! Extremely competitive pricing; after wading through the internet and finding 'good' pricing (from sketchy vendors) these guys are tops!

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