Seller notes

Piston Kit - Standard Bore 84.50mm, 11:1 CompressionThis Wiseco Piston Kits fits your 2010 2009 Yamaha YFM450 Grizzly 4x4 Auto IRS and is perfect for a tune up or performance upgrade. Wiseco Piston Kit for 2009-2010 Yamaha YFM450 Grizzly 4x4 Auto IRS - Engine ch Status: In Stock Condition: New GAIN PEACE OF MIND: Forged from high-silicon aluminum alloy for maximum strength and dependability. Innovative forging design and piston skirt provide maximum horsepower and torque.RELY ON A TIME-TESTED BR...

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