OEM CROSS-REFERENCE PART NUMBERS:
• 1UY-11631-01-Y0 (piston standard)
• 1YW-11631-01-Y0 (piston standard, alt ref)
• 5UH-11631-00-C0 (piston standard, later models)
• 1UY-11636-01-00 (piston 0.50mm OS)
• 1YW-11636-01-00 (piston 0.50mm OS)
• 1UY-11638-01-00 (piston 1.00mm OS)
• 1YW-11638-01-00 (piston 1.00mm OS)
• 4GB-11610-00-00 (ring set)
• 55V-11633-00-00 (piston pin)
• 93450-19095-00 (circlip)
SPECIFICATIONS:
• Bore Size: 84.50mm
• Oversize: 1.50mm Over
• Standard Bore: 83mm
• Displacement: 348cc
• Bore x Stroke: 83mm x 64.5mm
• Engine: 4-Stroke SOHC Air-Cooled Single Cylinder
• Compression: 9.2:1
• Material: Aluminum Alloy
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
COMPATIBILITY:
• 1987-2004 Yamaha Warrior 350 YFM350X
• 1987-1999 Yamaha Big Bear 350 YFM350FW
• 1987-1995 Yamaha Moto-4 350 YFM350ER
• 1995-2009 Yamaha Wolverine 350 YFM350FX
• 2004-2013 Yamaha Raptor 350 YFM350R
• 2004-2006 Yamaha Bruin 350
• 2007-2014 Yamaha Grizzly 350
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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