Machine work was poor quality. Finished size was wrong
S&S Cycle Billet Head Breather Kit S&S Blue - Harley V-Twin
About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
Replace your stock plastic breathers with the superior S&S Cycle Billet Head Breather Kit in a striking anodized S&S Blue finish. Machined from durable 6061 aluminum, these breathers offer a significant upgrade in both performance and longevity. Their advanced design effectively reduces oil pass-through, leading to cleaner crankcase emissions and fewer leaks.
Why riders pick this
- Machined 6061 aluminum replaces stock plastic
- Dual O-ring seal design for superior sealing
- Labyrinth internals reduce oil pass-through
- Anodized S&S Blue finish for custom style
- Reduces emissions and minimizes oil leaks
The S&S Cycle Billet Head Breathers are a direct, high-performance replacement for the often-problematic factory plastic breathers found on many Harley-Davidson V-twin engines. Constructed from robust 6061 aluminum, they are built to last, unlike their OEM counterparts which can crack and degrade over time. The dual O-ring design ensures a tighter, more reliable seal at the head mounting surface, preventing common oil leaks.
Advanced Oil Control and Durability
- Machined from high-strength 6061 aluminum for superior durability
- Dual O-ring design provides a tighter, more reliable seal
- Unique Labyrinth internals significantly reduce oil pass-through and blow-by
- Anodized S&S Blue finish adds a distinctive custom touch
- Contributes to cleaner crankcase emissions and minimizes leaks
A Smart Upgrade for Any V-Twin
Beyond the aesthetic appeal of the S&S Blue anodized finish, these billet head breathers offer tangible performance benefits. By reducing oil carry-over, they help keep your intake system cleaner and your engine running more efficiently. This upgrade is beneficial for any Harley-Davidson rider looking to improve engine cleanliness, reduce maintenance, and enhance the overall reliability of their V-twin powerplant.
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
Common questions
What advantages do these S&S billet breathers offer over the stock plastic breathers?
S&S billet breathers provide several key advantages: a tighter seal with their dual O-ring design, significantly reduced oil blow-by due to the Labyrinth internal design, and increased durability as they are made from robust aluminum, unlike the prone-to-cracking OEM plastic units.
Will installing these breathers help reduce oil leaks from my engine heads?
Yes, the dual O-ring design of the S&S Cycle Billet Head Breathers creates a much tighter and more reliable seal at the head mounting surface compared to the factory breathers, which can help in reducing oil leaks from that area.
Are these breathers a direct replacement for my Harley-Davidson?
Yes, these S&S Cycle Billet Head Breathers are designed as a direct replacement for Harley-Davidson models that utilize stock head breather mounts, ensuring a straightforward installation process.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | S&S Cycle |
| TYPE | Final Drive Gears |
| SKU | T14-716015 |
| WEIGHT | 0.6 lb |
S&S metal oil breather gear
Definitely recommend replacing the stock plastic gear with this! It fixed the issue I was having blowing oil out of my breather hose. Very happy with it
Exactly What I Needed
Fixed a problem that was plaguing me for a long time
Perfect replacement for the stock plastic part. I highly recommend it.
A little pricey but feel more comfortable with it than a plastic one
Good quality and fast shipping . Thanks