Vertex 24430B Cast Replica Piston Kit - Standard Bore 79.96mm, 9.4:1 Compression control-levers-perches-lever-sets Bolt Pattern: 4/85

Bolt Pattern: 4/85

Replaces OEM #4010901

2014-2025 Polaris Sportsman 570

JASO FC-FD

Also supplied with the brake is a sleeve and bolt that almost eliminates up and down play

Vertex 24430B Cast Replica Piston Kit - Standard Bore 79.96mm, 9.4:1 Compression control-levers-perches-lever-sets Bolt Pattern: 4/85Bore: 79. 96mm Compression: 9. 4: 1 Compression Sizing: Standard Bore All piston skirts are coated with a hi tech Molybdenum Disulphite coating for faster break in time and increased piston life. Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged Replica pistons are forged from 2618 aluminum for superior strength and durability. Forged High