Wiseco Forged Piston Kit with Gaskets - Polaris Sportsman 500 / Scrambler 500 / Magnum 500 (1996-2012) - 92.50mm Bore (+0.50mm Oversize) - 10.2:1 - 4-Stroke

Wiseco Forged Piston Kit with Gaskets - Polaris Sportsman 500 / Scrambler 500 / Magnum 500 (1996-2012) - 92.50mm Bore (+0.50mm Oversize) - 10.2:1 - 4-Stroke

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Regular price$289.95
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Wiseco Forged Piston Kit with Gaskets - Polaris 500cc ATV Platform

Premium Wiseco forged piston kit with complete top-end gasket set for the legendary Polaris 500cc ATV platform. This is the +0.50mm OVERSIZE (92.50mm) kit for worn cylinder bores!

⚠️ Oversize Piston - Cylinder Boring Required

This piston is +0.50mm oversize. Cylinder must be bored to 92.50mm for proper fit.

Kit Includes

  • Piston Kit #4677M09250
  • Ring Set #3642XC
  • Wrist Pin #S591
  • Wrist Pin Retainer Set #CW23
  • Gasket Kit #W5747

Key Features

  • Forged Series design for maximum strength and durability
  • 2618 aluminum alloy construction - preferred for high-performance
  • 10.2:1 compression ratio
  • Complete top-end gasket kit included
  • 17 years of fitment (1996-2012)!

Piston Specifications

  • Bore Size: 92.50 mm (+0.50mm Oversize)
  • Piston Diameter: 92.45 mm
  • Stroke Length: 75.00 mm
  • Compression Ratio: 10.2:1
  • Material: 2618 Aluminum Alloy
  • Skirt Coating: Non-Coated

Engine Specifications

  • Displacement: 499cc
  • Engine Type: 4-Stroke
  • Weight: 2.05 lbs

Fitment

Polaris Sportsman 500:

  • Sportsman 500 4x4: 1996-2000
  • Sportsman 500 HO: 2001-2006, 2008

Polaris Scrambler:

  • Scrambler 500 4x4: 2008-2012

Polaris Magnum:

  • Magnum 500 4x4: 1999-2002

Polaris ATP:

  • ATP 500: 2005
  • ATP 500 H.O. 4x4: 2004

Polaris Xplorer:

  • Xplorer 500 4x4: 1997

📦 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
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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