fits  99-17 Twin Cam (NU)

Manufactured from blue anodized 6061 aluminum. A direct upgrade replacement for the stock breather assembly. Inside you will find the proprietary Labyrinth design to significantly reduces oil pass-through, keeping your engine running cleaner and smoother while burning less oil. The S&S dual O-ring design offers a superior seal, minimizes leaks and maximizes performance. Maintenance-free since the mesh filter elements and the umbrella valves is no longer required. – 6061 aluminum construction – S&S blue anodized finish – Dual O-Ring for a improved sealing – Labyrinth design to significantly reduce oil pass-through – Less oil carry-over to the intake – Improved durability when compared to the stock breather assemblies – No nore umbrella valve and mesh filter element so maintenance-free

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