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Wiseco High Performance ArmorGlide Piston Kit Yamaha YZ250F 2012-2013

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Wiseco High Performance ArmorGlide Piston Kit Yamaha YZ250F

Wiseco's High Performance ArmorGlide Piston Kits are offered for nearly every popular application and contain everything you need to complete your rebuild the right way, the first time.

The ArmorGlide skirt coating is the result of testing, development, and bench-marking through Wiseco’s rigorous in-house dyno program. The outcome is the ultimate in skirt coating toughness, lubrication, and bond technology which delivers reduced friction, maximized horsepower, and excellent wear resistance. Not only is ArmorGlide a high-tech lubricant that reduces friction, it also allows the piston to be fitted tighter within the bore creating a better ring seal and reduced noise from piston rock.

Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Wiseco’s forged pistons feature detailed skirt shapes and profiles that are unique to each application and have been specifically designed to further maximize performance and durability.


  • ArmorGlide skirt coating provides reduced friction and noise to contribute to increased horsepower
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy construction
  • High performance ring set and alloy pin included with each piston kit for extended life and sustained power
  • Maximum compression and oil control
  • Improved combustion flow
  • Horizontal slot pin oiling for reduced friction
  • Pressure seal groove for maximum ring seal


  • Piston
  • Rings
  • Wrist pin
  • Clips
  • Top end gasket kit
  • Needle bearing (when applicable)

Note: Images are for reference only, actual kit will vary per make and model.

Fitment Notes & Exceptions

  • Always inspect and measure your cylinder before ordering
  • Any kit selection other than stock bore size will require cylinder boring and Nikasil plating or a new cylinder sleeve
  • Premium pump fuel required for high-compression ratios up to 13.5:1
  • Increased octane (race fuel) is required for compression ratios over 13.5:1
This Product Fits:
YZ250F 2012, 2013
Product Style RevZilla Item # Manufacturer Product # Availability
13.5:1/Stock Compression / 77.0/Stock Bore 1210267 PK1902 In Stock: Ships next business day
14:1/High-Compression / 77.0/Stock Bore 1210268 PK1903 In Stock: Ships next business day


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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