S&S Cycle Breather Gear Kits — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

S&S Cycle Billet Head Breathers in anodized S&S Blue, machined from 6061 aluminum as a direct replacement for stock plastic breathers. Dual O-ring design and unique Labyrinth internals reduce oil pass-through, keeping crankcase emissions cleaner while minimizing leaks.

Features

• 6061 aluminum construction replaces stock plastic
• Dual O-ring seal design
• Labyrinth design reduces oil pass-through
• Anodized S&S Blue finish
• Reduced emissions and oil burn
• Increased durability versus OEM breather

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 900-1186
• Material: 6061 aluminum
• Finish: Anodized S&S Blue
• Weight: 0.6 lb
• Category: Drivetrain / Final Drive Gears

Fitment

Fits Harley-Davidson models with stock head breather mounts.

Frequently Asked Questions

What's the advantage over the stock plastic breather?

S&S billet breathers seal tighter with dual O-rings, reduce oil blow-by via the Labyrinth design, and last longer without cracking or degrading.

Will this reduce oil leaks from my head?

The dual O-ring design creates a tighter seal at the head mounting surface, which minimizes common seep points in the stock setup.

Do I need any special tools to install?

No — installation uses the same mounting points as the factory breather. Standard hand tools are all you need.

Does this require remapping or tuning?

No tuning required. It's a direct bolt-on replacement that works with your existing carburetor or fuel-injection system.

Will this fit my specific Harley model?

Fits most Harley-Davidson models with stock head breather ports. Verify your bike's breather location before ordering if you have frame or engine modifications.