Harddrive HD Performance Single Fire Ignition Coil - Harley Milwaukee-Eight Softail
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
Elevate the ignition performance of your Harley Milwaukee-Eight Softail with the Harddrive HD Performance Single Fire Ignition Coil. This coil is engineered to provide a powerful, consistent spark, resulting in improved cold starting, reduced high-speed misfires, and enhanced fuel efficiency.
Why riders pick this
- 30,000 volt high-power output
- 20% higher peak spark voltage than stock
- Single-fire design for M8 Softail
- ION Sense feedback for OEM ECU compatibility
- Improves starting and eliminates high-speed misfire
- Increases fuel mileage and overall performance
Designed for 2018-2022 Harley-Davidson M8 Softail models, this Harddrive HD Performance coil is a direct bolt-on upgrade. Its ION Sense feedback technology ensures seamless compatibility with your factory EFI system, meaning you get a significant performance boost without the need for complex tuning or reprogramming.
Unleash Reliable Spark and Power
- Delivers up to 30,000 volts for robust ignition
- Provides 20% higher peak spark voltage than stock coils
- Single-fire configuration specifically for M8 Softail engines
- ION Sense feedback maintains OEM ECU compatibility
- Enhances starting reliability and eliminates misfires at speed
- Contributes to increased fuel mileage and overall engine responsiveness
A Crucial Upgrade for Your Softail
Whether you're running a stock M8 Softail or have already started down the path of performance upgrades, this Harddrive ignition coil is a smart investment. A stronger, more consistent spark is fundamental to efficient combustion, translating to a smoother running engine and more usable power throughout the RPM range. It's an ideal complement to a performance exhaust and air cleaner setup.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 10-2017
- UPC: 191361439537
- Coil Type: Single Fire
- Voltage Output: 30,000 volts
- Length: 5 in
- Width: 3 in
- Height: 4 in
- Weight: 3 lbs
- Country of Origin: China (Mainland)
Common questions
Is a tuner required when installing this performance coil?
No, thanks to ION Sense feedback, this Harddrive HD Performance coil is fully compatible with your stock Harley-Davidson EFI ECU, so no additional tuner or reprogramming is needed.
Which Harley-Davidson Softail models does this coil fit?
This ignition coil is designed for 2018-2022 Harley-Davidson Milwaukee-Eight Softail models. Please refer to our Shop by Bike tool to confirm fitment for your specific year and model.
How does this coil compare to the stock ignition coil?
This Harddrive coil delivers up to 30,000 volts and provides 20% higher peak spark voltage than the factory coil, leading to improved combustion efficiency and overall engine 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 | Harddrive |
| TYPE | Electrical |
| SKU | 820-60417 |
| WEIGHT | 3.0 lb |
