S&S Cycle Performance Fuel Injector - Harley Milwaukee-Eight Touring & Softail
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.
This S&S Cycle performance fuel injector is designed for 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engines. It provides a higher fuel flow capacity than the OEM spec, making it ideal for performance builds. This single injector supports custom tuning to get the most out of your M8 powerplant.
Why riders pick this
- Higher fuel flow than stock OEM injectors
- Designed for 2017+ Harley Milwaukee-Eight engines
- Supports performance builds and custom tuning
- Direct bolt-in replacement for easy installation
Unleash the full potential of your Milwaukee-Eight engine with an S&S Cycle performance fuel injector. As you upgrade your exhaust, intake, and cam, the factory injectors can become a limiting factor. This S&S injector delivers the increased fuel volume necessary to properly feed your performance-tuned M8, ensuring optimal air-fuel ratios and maximum power output. It's a direct bolt-in replacement, simplifying the upgrade process.
Higher Flow for Tuned M8s
- Delivers higher fuel flow capacity than stock OEM injectors
- Designed specifically for 2017 and newer Milwaukee-Eight engines
- Supports performance builds and custom ECU tuning
- Direct bolt-in replacement for straightforward installation
Optimizing Your Fuel System
Upgrading to a higher-flow injector like this S&S Cycle unit is a crucial step when chasing serious power from your Milwaukee-Eight. To fully capitalize on its capabilities, custom fuel mapping is essential to dial in the air-fuel ratio for your specific engine configuration. While this is a single injector, some high-performance setups may utilize a pair; be sure to order two if your application requires dual injectors for optimal fueling.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 550-0983
- Weight: 0.02 lb
- Category: Fuel Delivery / Fuel Injectors - Single
Common questions
Will this S&S injector fit my 2019 Harley-Davidson Street Glide?
Yes, this S&S Cycle fuel injector is designed to fit all 2017 and newer Harley-Davidson Milwaukee-Eight models, including your Street Glide, Road Glide, Road King, and other Touring and Softail models.
Do I need an ECU tune after installing this injector?
Yes, S&S Cycle strongly recommends custom fuel mapping via ECU tuning. This will optimize your air-fuel ratio and allow you to fully utilize the higher flow capacity of this performance injector.
Is this a single injector or a set?
This product is for a single fuel injector. If your performance build requires a pair of injectors, you will need to order two units.
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 | Fuel Injectors - Single |
| SKU | T14-663940 |
| WEIGHT | 0.02 lb |