OEM CROSS-REFERENCE PART NUMBERS:
• 4BD-11638-00-00 (piston 1.00mm OS)
• 29U-11638-00-00 (piston 1.00mm OS, earlier)
• 4BD-11631-00-Y0 (piston standard)
• 29U-11631-00-Y0 (piston standard, earlier models)
• 4BD-11610-00-00 (ring set)
• 29U-11633-00-00 (piston pin)
• 93450-17044-00 (circlip)
SPECIFICATIONS:
• Bore Size: 72.00mm
• Oversize: 1.00mm Over
• Standard Bore: 71mm
• Displacement: 229cc
• Bore x Stroke: 71mm x 58mm
• Engine: 4-Stroke SOHC Air-Cooled Single Cylinder
• Compression: 8.7:1
• Material: Aluminum Alloy
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
COMPATIBILITY:
• 1999-2004 Yamaha Bear Tracker 250
• 2007-2009 Yamaha Big Bear 250
• 2005-2006 Yamaha Bruin 250
• 1992-2000 Yamaha Timberwolf 250
• 1986-1988 Yamaha Moto-4 225
• 1983-1986 Yamaha Tri-Moto 225
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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