OEM REFERENCE NUMBERS:
• 5ND-11631-00-00 (Yamaha Standard Piston)
• 5ND-11636-00-00 (Yamaha 0.50mm Over Piston)
• 5ND-11638-00-00 (Yamaha 1.00mm Over Piston)
SPECIFICATIONS:
• Product Type: Piston Kit
• Bore Size: 0.50mm Over (85.00mm)
• Standard Bore: 84.5mm
• Bore x Stroke: 84.5 x 75mm
• Displacement: 421cc
• Engine Type: 4-Stroke SOHC Liquid-Cooled 2-Valve Single Cylinder
• Compression Ratio: 10.0:1
• Cylinder: Ceramic-Composite-Plated Bore
• Fuel System: Mikuni 33mm BSR Carburetor / EFI (2018+)
• Kit Includes: Piston, Rings, Wrist Pin, Circlips
COMPATIBILITY:
• 2003-2006 Yamaha Kodiak 450 4x4 YFM450
• 2006-2010 Yamaha Wolverine 450 4x4 YFM450FX
• 2007-2014 Yamaha Grizzly 450 Auto 4x4 YFM450F
• 2011-2014 Yamaha Grizzly 450 EPS 4x4 YFM450F
• 2018-2024 Yamaha Kodiak 450 EPS YFM450DE
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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