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Wiseco PK1064 Top End Piston Kit 95.0mm 13:1 High Compression YFZ450

(Yamaha YFZ450 2004-09, YFZ450R 2009, YZ450F 2004-09, YXR45F Rhino 450 2006-09, YFZ450R SE 2009, YFZ450 Bill Balance Edition 2006-07 + 2 more models)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1064
13 reviews
Sale Price

$352.99

Estimated ship date Friday, November 27

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Product Details

The Wiseco PK1064 is a complete top end piston kit engineered for the Yamaha YFZ450, featuring a 95.0mm standard bore and a high-compression 13:1 compression ratio. This all-inclusive kit provides everything needed to perform a full top end rebuild correctly the first time, using race-proven Wiseco components throughout.

The forged piston is built using a dedicated aerospace-grade aluminum alloy forging, delivering an optimal strength-to-weight ratio that exceeds OEM specifications. Wiseco's forged 4-stroke pistons are designed and machined to the tightest tolerances for the ideal balance of power output and long-term durability — the same technology trusted by top race teams across Supercross, Motocross, GNCC, and Superbike competition.

Kit Includes:

  • Forged piston — aerospace alloy, dedicated forging, CNC machined
  • High-performance ring set — designed for extended service life and sustained power
  • Alloy wrist pin — precision machined for consistent fit and reduced friction
  • Circlips — precision retention hardware
  • Complete top end gasket kit — premium materials engineered to exceed OEM sealing standards

Key Specifications:

  • Bore Size: 95.0mm (Standard Bore)
  • Compression Ratio: 13:1 (High Compression)
  • Forging Designation: 4835M
  • Construction: Aerospace alloy forged aluminum

Wiseco's PK-series top end kits are a one-stop solution for engine rebuilds, bundling only precision-matched components to ensure proper fit and performance. Note: Wiseco rings are not interchangeable with other brands — always use Wiseco rings with Wiseco pistons.

Products specifications

Fits

Yamaha YFZ450 2004-09, YFZ450R 2009, YZ450F 2004-09, YXR45F Rhino 450 2006-09, YFZ450R SE 2009, YFZ450 Bill Balance Edition 2006-07, YFZ450 SE 2007-08, YXR45F Rhino 450 Special Edition 2007-08

Piston Material

2618

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Bore Diameter

95.00

Engine Type

ICE

Piston oversize

STD

Industry

Powersports

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Skirt Coating

Yes

Product Series

4 Stroke Forged Series

Product Type

Top End Kits

Product Market

ATV/UTV

EBAY Category ID

180159

Piston Diameter

94.94

Compression Ratio Actual

12.4:1

Title

Wiseco 4 Stroke Forged Series Piston Kit, 95.00 MM Bore, 12.4:1 CR

Included Components

Piston #4835M09500, Ring Set #3741XS, Wrist Pin #S641, CirClip #CW20, Gasket #W6129

Title - Web

Yamaha Wiseco Top End Kit - 95.00 mm Bore

Size

95

Very fast ordering process and very good pricing! Thank you...

Easily found product, was alerted when part would not fit designated vehicle. Did not find place to request a catalog.

Good

quick and convenient

I was able to locate my part on your web site easily, and I'm satisfied that the price is unbeatable.

Make sure i have all the parts please

Best price! Nice site. Will return again!

Amazon checkout made it easy!

Easy so far

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

Awesome

I use Google to search for my parts using the part number of the item. Autoplicity was the lowest priced including shipping costs. I was pleasantly suprised when I was able to Save 25% off shipping with code: 25OffShipping. And now an additional $5 off. I really received a great deal on this item. I will definately shop again....

Best deal on the web!!! Price was so cheap I thought they had made a mistake and would cancel my order. Item arrived days later. I will do business with Autoplicity in the future. Thanks it was a great transaction and will recommend you to friends.

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