YFZ450 2004-09 & 2012-13 ATV Cylinder Forged Piston & Top Gasket Kit STD Bore

Cylinder Works Standard Bore Cylinder Kits have everything you need to get your cylinder back to stock condition whether you’ve had a catastrophic failure or its time for a more in-depth rebuild. The cylinder features a nickel silicon carbide bore sized identically to OEM specs for incredible wear resistance, exceptional performance, and excellent ring seating.

The Vertex piston included in the kit is forged from high-quality 2618 aluminum alloy using the same great Vertex skirt profiles and anti-friction coatings that form the perfect mating surface between rings, piston, and cylinder wall. Finally, the kit is rounded out with all the gaskets, O-rings, and seals you’ll need to put your top end back together and get back on the track.

• Includes cylinder, piston kit and gaskets
• Matched with vertex pistons to ensure longevity, and performance and reduce engine noise
• Replacement piston, gaskets, and ring sets are available
• The cylinder looks just like stock
• Nickel silicon carbide plated for longer life

• Uses Vertex #22984
• Compression Ratio 12.0:1
• Cylinder Diameter 95 mm
• Cylinder Kit Type Standard Bore
• Displacement 450 cc
• Engine Type 4-Cycle
• Includes Cylinder, Piston Kit, and a Top-End Gasket Kit