Wiseco Piston Kit - 85.50 mm - Yamaha [4939M08550]

Wiseco Piston Kit - 85.50 mm - Yamaha [4939M08550]

Manufacturer Part Number: 4939M08550

Parts Unlimited Part Number: 09102853

Product Type: Piston & Ring Kits

Piston Kit - 85.50 mm - Yamaha

Details

• Piston Diameter: 85.45 mm
• Piston Material: Forged 2618 Aluminum
• Bore - Oversize: +1.00 mm
• Engine Type: 4-Stroke
• Product Name: Piston Kit
• Skirt Coating: ArmorGlide®
• Units: Kit
• Model: Forged Series
• Riding Style: ATV
• Compression Ratio: 11.0:1
• Riding Style: UTV
• Displacement: 420 cc
• Bore Size: 85.50 mm
• Stroke Length: 75.00 mm
• Forged 4-stroke piston is designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength
• Dedicated forgings allow for optimized strength-to-weight ratio
• Ideal for multiple purpose riding
• Kit includes piston, wrist pin, rings and circlips

Verified Fitment

• 2006 Yamaha YFM 450 Kodiak
• 2005 Yamaha YFM 450 Kodiak
• 2004 Yamaha YFM 450 Kodiak
• 2003 Yamaha YFM 450 Kodiak
• 2009 Yamaha YFM450 Grizzly 4x4 Auto
• 2013 Yamaha YFM450 Grizzly 4x4 Auto
• 2014 Yamaha YFM450 Grizzly 4x4 Auto
• 2008 Yamaha YFM450 Grizzly 4x4 Auto
• 2012 Yamaha YFM450 Grizzly 4x4 Auto
• 2007 Yamaha YFM450 Grizzly 4x4 Auto
• 2010 Yamaha YFM450 Grizzly 4x4 Auto
• 2011 Yamaha YFM450 Grizzly 4x4 Auto
• 2018 Yamaha YFM450 Kodiak 450
• 2021 Yamaha YFM450 Kodiak 450
• 2019 Yamaha YFM450 Kodiak 450
• 2020 Yamaha YFM450 Kodiak 450
• 2013 Yamaha Grizzly 450 EPS 4x4
• 2009 Yamaha YXR45F Rhino 450
• 2007 Yamaha YXR45F Rhino 450
• 2008 Yamaha YXR45F Rhino 450
• 2006 Yamaha YXR45F Rhino 450
• 2003 Yamaha YFM450F Kodiak Auto 4x4
• 2005 Yamaha YFM450F Kodiak Auto 4x4
• 2004 Yamaha YFM450F Kodiak Auto 4x4
• 2006 Yamaha YFM450F Kodiak Auto 4x4
• 2007 Yamaha Grizzly 450 SE 4x4
• 2006 Yamaha YFM450FX Wolverine 4x4
• 2007 Yamaha YFM450FX Wolverine 4x4
• 2009 Yamaha YFM450FX Wolverine 4x4
• 2010 Yamaha YFM450FX Wolverine 4x4
• 2008 Yamaha YFM450FX Wolverine 4x4
• 2008 Yamaha YXR45F Rhino 450 Special Edition
• 2007 Yamaha YXR45F Rhino 450 Special Edition