Piston Kit 0.75Mm Over Compatible With 1992-2004 Yamaha Bear Tracker Timberwolf 250 Yfm250 Yfb250

OEM CROSS-REFERENCE PART NUMBERS:
• 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: 71.75mm
• Oversize: 0.75mm 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
YAMAHA 250 / 225 ATV APPLICATIONS (1983-2009):

YAMAHA BEAR TRACKER 250:
• Yamaha YFM250X Bear Tracker (1999-2004)
• Yamaha YFM250XH Bear Tracker Hunter Edition (2001-2002)

YAMAHA BIG BEAR 250:
• Yamaha YFM250B Big Bear (2007-2009)

YAMAHA BRUIN 250:
• Yamaha YFM250B Bruin 2WD (2005-2006)

YAMAHA TIMBERWOLF 250:
• Yamaha YFB250 Timberwolf 2WD (1992-1998)
• Yamaha YFB250FW Timberwolf 4x4 (1994-2000)

YAMAHA MOTO-4 225:
• Yamaha YFM225 Moto-4 (1986-1988)

YAMAHA TRI-MOTO 225:
• Yamaha YTM225 Tri-Moto (1983-1986)

ENGINE SPECIFICATIONS:
• 229cc 4-Stroke SOHC Air-Cooled Single Cylinder
• 71mm Bore x 58mm Stroke
• Compression Ratio: 8.7:1
• 2-Valve SOHC

NOTES:
• Same engine platform across all listed models
• Kit includes piston, rings, wrist pin, and circlips
• Verify OEM part number before ordering