S&S Cycle Intake Runner - 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.
The S&S Cycle Intake Runner is engineered to significantly improve intake flow and engine breathing response on your Harley-Davidson Milwaukee-Eight engine. This component serves as a direct replacement for the stock M8 intake manifold runner, designed for riders seeking to optimize their engine's performance. It's a crucial step in ensuring your V-twin gets the air it needs to perform at its best.
Why riders pick this
- Direct replacement for stock M8 intake runner
- Optimized design for improved intake flow
- Enhances engine breathing response
- Engineered specifically for Milwaukee-Eight architecture
This S&S Cycle intake runner is a key upgrade for any Milwaukee-Eight owner looking for better engine efficiency and power delivery. It's meticulously designed to replace your stock M8 intake manifold runner without the need for modifications, ensuring a straightforward installation. By optimizing the internal flow path, this runner helps to deliver a more consistent and efficient air charge to the combustion chamber, translating into improved throttle response and overall engine performance on your Harley Touring or Softail.
Optimized Airflow for M8 Engines
- Direct replacement for the stock Milwaukee-Eight intake runner
- Engineered for improved intake flow and engine breathing
- Designed to enhance throttle response and power delivery
- Integrates seamlessly into the Milwaukee-Eight engine architecture
Simple Performance Upgrade
For Milwaukee-Eight riders, upgrading the intake runner is a smart move to unlock more of your engine's potential. This S&S Cycle component is a simple, direct bolt-on part that can make a noticeable difference in how your bike breathes and performs. It's an excellent foundation for further performance modifications or a standalone upgrade for those looking for a quick win in engine efficiency.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 170-0643
- Weight: 2.5 lbs
- Category: Air Intake Systems / Air Intake Components
Common questions
Will this intake runner fit my Twin Cam Harley?
No, this S&S Cycle intake runner is engineered specifically for Milwaukee-Eight (M8) engines. Twin Cam models require a different part number for proper fitment.
Is this a direct bolt-on replacement part?
Yes, this S&S Cycle intake runner is designed as a direct replacement for the stock M8 intake manifold runner, requiring no modifications for installation.
Will I need to tune my bike after installing this intake runner?
Any modification to the intake system can affect fuel delivery. It's always recommended to consult with S&S Cycle or a professional Harley tuner to determine if your bike needs a fuel map adjustment for optimal performance.
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 | T14-664162 |
| WEIGHT | 2.5 lb |
