OEM PART NUMBERS:
• Yamaha 1mm Over Piston: 4GB-11638-00-00 / 4GB116380000
• Yamaha Standard Piston: 4GB-11636-00-00 / 4GB116360000
• Yamaha Standard Piston: 4GB-11631-00-Y0 / 4GB1163100Y0
• Yamaha Cylinder: 4GB-11310-00-00 / 5FU-11310-01-00
SPECIFICATIONS:
• Type: Piston Kit (1.00mm Oversize)
• Standard Bore: 83mm
• Oversize Bore: 84mm (1.00mm Over)
• Stroke: 74mm
• Displacement: 401cc
• Compression: 8.6:1
• Piston Type: Cast
• Engine: Single-Cylinder 4-Stroke SOHC Air-Cooled
• Weight: 2 lbs / Condition: New
KIT CONTENTS (Single Cylinder):
• (1) Cast Piston — 1.00mm Oversize 84mm
• (1) Ring Set / (1) Wrist Pin / (2) Circlips
• Single cylinder engine — one kit completes rebuild
APPLICATIONS:
• Yamaha Big Bear 400 YFM400 2WD 401cc SOHC (2000-2004)
• Yamaha Big Bear 400 YFM400F 4x4 401cc SOHC (2000-2006)
• Yamaha Big Bear 400 YFM400FB IRS 4x4 401cc SOHC (2007-2012)
• Yamaha Big Bear 400 Hunter Edition 401cc SOHC (2000-2012)
• Yamaha Kodiak 400 YFM400FW 4x4 401cc SOHC (1993-1999)
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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