Wiseco Piston Kit - 85.50 Mm - Yamaha 4939M08550

PISTON KIT GRIZZLY/RHINO

• HIGH-PERFORMANCE PISTONS
• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications
• WISECO FEATURES PRO-LITE PISTONS
• Durability, longevity and increased horsepower
• Innovative forging design and piston skirt provide maximum horsepower and torque
• PK PISTON AND GASKET KITS
• Contain all the necessary components for overboring or rebuilding your top end
• Feature forged pistons, rings, wrist pins, circlips and top-end gasket set
• Cylinder sleeves must be purchased separately
• See price list on page ???
• 4-STROKE RACER'S CHOICE PISTONS
• Now you can own the same race parts as all the top race teams
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer
• When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
• NOTE: Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
• WISECO PISTON PRICING
• All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???
• Formula for computing cubic centimeter displacement D = Bore Size in Inches; S = Stroke in Inches; Number = Number of Cylinders D(2) x .7854 x S x N x 16.387 = CC Displacement

Yamaha -- Grizzly 450 4x4 -- (2011, 2010, 2008, 2014, 2007, 2009, 2013, 2012); Yamaha -- YFM 450 Kodiak -- (2019, 2018, 2020, 2021, 2004, 2005, 2003, 2006); Yamaha -- YFM 450 FX Wolverine 4x4 -- (2008, 2006, 2007, 2009, 2010); Yamaha -- YXR 450F Rhino 4x4 -- (2008, 2006, 2007, 2009)