Wiseco Forged Series Piston Kit with Gaskets - Yamaha Grizzly 350/Raptor 350/Warrior/Big Bear (1987-2014) - 83.50mm Bore (+0.50mm Oversize) - ArmorGlide® - 4-Stroke
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Premium Wiseco Forged Series piston kit with complete gasket set for Yamaha 350cc ATV platform including Grizzly 350, Raptor 350, Warrior 350, and Big Bear 350. This is the +0.50mm OVERSIZE (83.50mm) kit with ArmorGlide® coating!
✓ Fits:
- Yamaha YFM 350 Warrior: 1987-2004
- Yamaha YFM350FW Big Bear 4x4: 1989-1999
- Yamaha YFM350U Big Bear 2x4: 1996-1999
- Yamaha YFM350 Raptor: 2005-2013
- Yamaha YFM350 Grizzly 4x4 Auto: 2007-2012, 2014
- Yamaha Grizzly 350 4x4/4x2: 2007-2014
- Yamaha YFM350 Grizzly IRS 4x4 Auto: 2007-2011
✓ Features:
- Forged Series - premium 2618 aluminum alloy construction
- ArmorGlide® Skirt Coating for reduced friction
- 10.25:1 compression ratio
- Complete top-end gasket kit included
- 28 years of fitment (1987-2014)!
- Fits sport, utility, and adventure models
- Bore Size: 83.50 mm (+0.50mm Oversize)
- Piston Diameter: 83.45 mm
- Stroke Length: 64.50 mm
- Compression Ratio: 10.25:1
- Material: 2618 Aluminum Alloy
- Skirt Coating: ArmorGlide®
✓ What's Included:
- Forged Series Piston with ArmorGlide® Skirt Coating
- Ring Set
- Wrist Pin
- Wrist Pin Retainer Set
- Complete Gasket Kit
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
