Wiseco Pro - Lite Piston Kit with Gaskets - Yamaha YFZ350 Banshee (1987 - 2006) - 66.25mm Bore (+1.25mm Oversize) - 2 - Stroke - Dune Goons

Wiseco Pro-Lite Piston Kit with Gaskets - Yamaha YFZ350 Banshee (1987-2006) - 66.25mm Bore (+1.25mm Oversize) - 2-Stroke

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Wiseco Pro-Lite Piston Kit with Gaskets - Yamaha YFZ350 Banshee - +1.25mm Oversize

Premium Wiseco Pro-Lite piston kit for the legendary Yamaha YFZ350 Banshee 2-stroke sport ATV. +1.25mm OVERSIZE (66.25mm) for worn cylinders!

⚠️ Oversize Piston - Cylinder Boring Required

This piston is +1.25mm oversize. Cylinder boring to 66.25mm is required for proper fit.

Kit Includes

  • Pro-Lite Piston
  • Ring Set
  • Wrist Pin
  • Circlips
  • Wrist Pin Bearing
  • Complete Gasket Kit

Key Features

  • Pro-Lite Series - Lightweight 4032 aluminum alloy
  • 2-STROKE ATV - Legendary Banshee twin cylinder
  • 20 YEARS of fitment (1987-2006)!

Piston Specifications

  • Bore Size: 66.25 mm (+1.25mm Oversize)
  • Piston Diameter: 65.17 mm
  • Stroke Length: 54.00 mm
  • Material: 4032 Aluminum Alloy
  • Skirt Coating: Non-Coated

Engine Specifications

  • Displacement: 361cc (Twin cylinder)
  • Engine Type: 2-Stroke
  • Weight: 2.2 lbs

Fitment

  • Yamaha YFZ350 Banshee: 1987-2006

📦 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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