S&S Cycle Stealth Air Cleaner Kit Tri-Spoke Cover - Harley Milwaukee-Eight
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.
Enhance the performance and aesthetics of your 2017 and newer Harley-Davidson Milwaukee-Eight with the S&S Cycle Stealth Air Cleaner Kit. This advanced kit features a high-strength synthetic polymer backplate designed to reduce heat transfer, ensuring cooler, denser intake air for improved combustion. It's a complete, street-legal upgrade for your V-twin.
Why riders pick this
- Synthetic polymer backplate reduces heat transfer to intake air
- Conceals throttle-by-wire servo for a clean engine look
- Includes stylish Tri-Spoke Cover for custom appeal
- Improves cylinder fill for enhanced performance
- 50-State legal and CARB exempt for peace of mind
The S&S Cycle Stealth Air Cleaner Kit is specifically engineered for 2017+ Harley-Davidson Milwaukee-Eight models equipped with a stock throttle body. This kit goes beyond just filtration, incorporating a synthetic polymer backplate that actively reduces heat soak to the intake charge. Cooler air means denser air, which translates directly into better cylinder fill and more efficient power production from your Milwaukee-Eight engine. The included tri-spoke cover and actuator shroud clean up the look by hiding the throttle-by-wire servo, giving your bike a custom, intentional appearance.
Innovative Design for Cooler, Denser Air
- High-strength synthetic polymer backplate reduces intake air heat
- Included actuator cover conceals the throttle-by-wire servo motor
- Tri-Spoke Cover provides a distinctive custom look
- Designed to improve cylinder fill and overall engine performance
- 50-State legal for broad street use
Performance and Style for Your M8 Bagger
This S&S Cycle Stealth Air Cleaner Kit offers a dual benefit of performance enhancement and visual upgrade for your Milwaukee-Eight. The ability to run cooler, denser air into your engine is a fundamental principle of performance tuning, and this kit delivers on that promise. For riders who appreciate a clean aesthetic, the included actuator shroud is a thoughtful detail that elevates the overall appearance of your engine bay. Plus, with the option to use your stock Harley air cleaner cover (adapter sold separately), you have flexibility in styling your ride.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 170-0392C
- Category: Air Intake Systems / Air Intake Components
- Weight: 3.2 lb
Common questions
Will this S&S Stealth Air Cleaner Kit fit my older Twin Cam or Evolution engine?
No, this specific S&S Cycle Stealth Air Cleaner Kit is engineered exclusively for 2017 and newer Harley-Davidson Milwaukee-Eight models with a stock throttle body. Please use our Shop by Bike tool for correct fitment for other engine platforms.
Can I use my original Harley-Davidson air cleaner cover with this kit?
Yes, you can use your stock Harley-Davidson air cleaner cover with this S&S Cycle Stealth kit, but it requires a separate adapter, which is sold by S&S Cycle. The kit includes its own Tri-Spoke Cover.
Is this air cleaner legal for use on public roads in all states?
Yes, this S&S Cycle Stealth Air Cleaner Kit is 50-State legal and holds CARB Executive Order exemption #D-355-30, making it compliant for street use across the United States.
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 | Air Intake Components |
| SKU | T14-661684 |
| WEIGHT | 3.2 lb |
