Wiseco Forged Series Piston Kit with Gaskets - Yamaha YFM660R Raptor (2001 - 2005) - 100.00mm Bore (Standard) - ArmorGlide® - 4 - Stroke - Dune Goons

Wiseco Forged Series Piston Kit with Gaskets - Yamaha YFM660R Raptor (2001-2005) - 100.00mm Bore (Standard) - ArmorGlide® - 4-Stroke

$359.95
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Wiseco Forged Series Piston Kit with Gaskets - Yamaha Raptor 660 - Standard Bore

Premium Wiseco Forged Series piston kit with ArmorGlide® coating for the legendary Yamaha YFM660R Raptor sport ATV. STANDARD BORE (100.00mm) - direct replacement!

Kit Includes

  • Forged Series Piston with ArmorGlide® Skirt Coating
  • Ring Set
  • Wrist Pin
  • Wrist Pin Retainer Set
  • Complete Gasket Kit

Key Features

  • Forged Series - premium 2618 aluminum alloy
  • ArmorGlide® Skirt Coating for reduced friction
  • 11.0:1 compression ratio - sport-tuned
  • Standard bore - no cylinder work required
  • The legendary Raptor 660 sport ATV!

Piston Specifications

  • Bore Size: 100.00 mm (Standard)
  • Piston Diameter: 99.92 mm
  • Stroke Length: 84.00 mm
  • Compression Ratio: 11.0:1
  • Material: 2618 Aluminum Alloy
  • Skirt Coating: ArmorGlide®

Engine Specifications

  • Displacement: 660cc
  • Engine Type: 4-Stroke
  • Weight: 2.3 lbs

Fitment

  • Yamaha YFM660R Raptor: 2001-2005

📦 Shipping Information

In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch

Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks

Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.

Questions? Contact us—we respond within 24 hours.

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