S&S Cycle 99-17 Twin Cam Models Billet Head Breather Kit

New Billet Head Breathers for your 1999-2017 big twin from S&S Cycle. Crafted from premium 6061 aluminum and anodized in the iconic S&S blue, they look good and perform even better. Inside you will find our proprietary Labyrinth design to significantly reduce oil pass-through, keeping your engine running cleaner. Billet construction provides a superior seal in the head, minimizing leaks, and maximizing performance over stock plastic units.

• Unique Labyrinth design to significantly reduce oil consumption
• Maintenance free design replaces ineffective mesh filter
• 6061 Aluminum for Increased durability over stock
• Less oil carry over into the intake
• Anodized S&S Blue

Upgrade the engine ventilation system on your 1999-2017 Harley-Davidson Twin Cam with the S&S Cycle SSC900-1299 Billet Head Breather Kit. Designed as a durable replacement for stock plastic breather components, this kit combines precision-machined 6061 aluminum construction with a distinctive S&S blue anodized finish. The billet design provides a more secure seal in the cylinder heads, helping minimize leaks and support reliable engine performance.
The kit features S&S Cycle’s proprietary Labyrinth breather design, which helps significantly reduce oil pass-through and oil carryover into the intake. By limiting the amount of oil entering the intake tract, it helps keep the engine and induction system cleaner during operation. The maintenance-free design also eliminates the need for the ineffective mesh filter used in some original equipment breathers, providing a practical upgrade for street and performance applications.
Built for long-term durability, the S&S Cycle SSC900-1299 breather kit delivers improved construction and ventilation control compared with standard plastic units. It is designed for compatible big-twin applications and includes one complete kit. The product is EPA compliant and carries CARB Executive Order D-355-58 approval, making it suitable for applicable emissions-regulated installations. Verify vehicle fitment before ordering.

Features:

• Application: Fits compatible 1999-2017 Harley-Davidson Twin Cam big-twin models

• Labyrinth Design: Helps significantly reduce oil consumption and oil pass-through

• Maintenance-Free Construction: Replaces the ineffective mesh filter used in some stock breathers

• 6061 Aluminum Construction: Provides increased durability and a superior head seal compared with stock plastic units

• Oil Control: Helps reduce oil carryover into the intake system

• Finish: Anodized S&S blue for corrosion resistance and a distinctive appearance

• Emissions Compliance: EPA compliant with CARB Executive Order D-355-58