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Wiseco Pistons 40116M07700 High-Performance Piston Kit 77.0mm Bore 13.5:1 Compression Ratio

(2014-2015 Yamaha YZ250F; 2015-2016 Yamaha YZ250FX; 2015-2017 Yamaha WR250F)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

40116M07700
10 reviews
Sale Price

$209.99

4 left at this price

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Usually delivered within 2 days

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Product Details

The Wiseco 40116M07700 high-performance piston kit is engineered specifically for 2014-2015 Yamaha YZ250F motorcycles, delivering a 13.5:1 compression ratio for increased power output. This standard bore (77.0mm) piston is forged from high-silicon aluminum alloy, providing exceptional strength and dependability under extreme racing conditions.

Key Features:

  • Forged from high-silicon aluminum alloy for maximum strength and heat resistance
  • Innovative forging design optimizes piston skirt geometry for maximum horsepower and torque
  • 13.5:1 compression ratio for enhanced performance over stock configuration
  • 77.0mm bore size (standard size for YZ250F applications)
  • Complete kit includes piston, rings, wrist pin, and circlips
  • Precision-engineered for direct fit in stock cylinders

Wiseco pistons are a trusted choice among professional racers and enthusiasts, offering race-proven reliability and performance gains. This piston kit provides everything needed for a complete top-end rebuild or performance upgrade. Note that oversize pistons require cylinder boring and sleeving services.

Products specifications

Fits

2014-2015 Yamaha YZ250F; 2015-2016 Yamaha YZ250FX; 2015-2017 Yamaha WR250F

Great transaction. Like the part that they let you know if it's in stock. I was surprised at the FAST shipping of my order. The web site suggested it would be delivered on Friday after a Friday order was placed. It actually was delivered on Wednesday, two days prior to the estimated delivery time. Very well pleases with this company and will do business with them again when the need arrives.

Great

Nice prices

Quick easy fast to,get started

Shopping was easy. Waiting on shipping.

Buying experience was excellent. Now, I hope it fits my 1973 Buick Centurion Convertible!

Need more specific details on item.

Quick experience. Good prices. A little concerned that the order didn't display my exact vehicle for verification of fit purposes.

Great experience

Quick and easy

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