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Wossner Piston Kit 4.375" Stroke 107 CID M8 2017-2024 Harley-Davidson Softail Low Rider ST FXLRST K4081DA-2

Part Number: 09106681
WOSSNER
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SKU:
09106681
MPN:
K4081DA-2
Availability:
Ships Same Business Day
Weight:
3.05 LBS
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$448.00
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Description

When you're pushing your M8 to its limits, stock pistons become your bottleneck. The Wossner Piston Kit delivers thermal management and durability engineered to handle sustained high-load conditions, keeping your 107 CID running cooler and stronger. This complete kit arrives ready to install, eliminating guesswork on critical engine internals.

Built for serious riders who refuse compromise, Wossner's hardcoat anodized crown resists extreme heat while improving ring groove wear resistance—a direct path to longer engine life and consistent performance across your rebuild.

  • Hardcoat anodized crown
  • 10% thermal diffusivity improvement
  • Superior ring groove wear resistance
  • Fits 4.375" stroke, 107 CID
  • 2017-2024 Harley M8 Softail FXLRST
  • Includes piston, rings, pin, clips
  • Intake valve pocket: 1.780" diameter
  • Exhaust valve pocket: 1.780" diameter
  • Valve pocket depth: 0.200"
  • Valve pocket angle: 27.000°
  • Bolt-on installation
  • MPN: K4081DA-2
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Fitment for Wossner Piston Kit 4.375" Stroke 107 CID M8 2017-2024 Harley-Davidson Softail Low Rider ST FXLRST K4081DA-2

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