WSM Top End Rebuild Kit 83mm Yamaha ATV | Grizzly, Raptor, Wolverine, Warrior (1987-2013)

WSM Top-End Rebuild Kit – 83.00 mm Bore – Yamaha 350cc ATVs

Restore lost power and reliability to your Yamaha ATV with this complete WSM Top-End Rebuild Kit. Engineered for long-lasting performance, this kit includes everything needed to refresh your engine’s top end and get you back on the trail.

✅ Top-quality piston kit for durability
✅ 83.00 mm standard bore size
✅ Includes pistons, rings, pins, clips
✅ Full gasket set (head, base, intake, exhaust)
✅ Oil filter included for 4-stroke models
✅ Lightweight aluminum construction

🔧 Fitment Compatibility

• 2013 Yamaha Grizzly 350 4x4

• 2007–2012, 2014 Yamaha YFM350 Grizzly 4x4 Auto

• 2007–2011, 2014 Yamaha Grizzly 350 4x2

• 2007–2011 Yamaha YFM350 Grizzly IRS 4x4 Auto

• 2006–2009 Yamaha YFM 350 X Wolverine 4x2

• 2005–2007 Yamaha Raptor 350 SE 4x2

• 2005–2006 Yamaha YFM 350 Bruin (4x4 / 4x2 / Auto)

• 2004–2013 Yamaha YFM350 Raptor

• 1999 Yamaha Big Bear 350 Hunter Edition 4x4

• 1997 Yamaha Big Bear 350 SE 4x4

• 1996–1999 Yamaha YFM350U Big Bear 2x4

• 1996, 1998–2003 Yamaha YFM 350 FX Wolverine 4x4

• 1995, 1997, 2004–2005 Yamaha YFM350F Wolverine 4x4

• 1987–2004 Yamaha YFM 350 Warrior

• 1987–1999 Yamaha YFM350FW Big Bear 4x4

📦 Kit Contents

• Pistons & rings

• Wrist pins & clips

• Head & base gaskets

• Intake & exhaust gaskets

• Oil filter (for 4-stroke models)

📐 Specs

• Bore Size: 83.00 mm (Standard)

• Displacement: 348 cc

• Engine Type: 4-Stroke

• Weight: 2 lbs

• Material: Aluminum