Harddrive Black Regulator - Harley Sportster 1984-1990
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.
Ensure your Harley-Davidson Sportster's electrical system is up to the task with this Harddrive black regulator. Designed for 1984-1990 models, this unit is engineered to meet or exceed OEM specifications, providing dependable voltage regulation and improved heat management for consistent power delivery.
Why riders pick this
- Engineered to meet or exceed OEM specifications
- High-power SCR technology for cooler, extended operation
- Sealed, high-temperature encapsulation boosts durability
- Efficient surface-mount circuit board dissipates heat
- Includes OEM-grade wiring harness for straightforward install
An efficient voltage regulator is crucial for preventing electrical system issues and extending the life of your battery. This Harddrive regulator employs advanced technology to run cooler and more reliably than many original equipment units, making it an essential upgrade for any V-twin rider pushing their bike hard.
Enhanced Electrical Stability
- Meets or exceeds original equipment manufacturer specifications
- High-power SCR (Silicon Controlled Rectifier) technology ensures cooler operation
- Sealed, high-temperature encapsulation protects against environmental factors
- Surface-mount circuit board design for efficient heat dissipation
- Equipped with an OEM-grade wiring harness for direct fitment
Upgrade for Performance
Riders of older Sportster models understand the importance of reliable components. This Harddrive regulator offers a significant upgrade over potentially aged stock units, delivering peace of mind and consistent electrical performance. Its robust construction and thermal design are built to withstand the rigors of the road, keeping your V-twin charged and ready.
Specifications
- Brand: Harddrive
- Manufacturer Part #: H2386
- UPC: 191361170225
- Length: 4.9 in
- Width: 3.4 in
- Height: 2.7 in
- Weight: 1.03 lbs
- Country of Origin: China (Mainland)
Common questions
Will this regulator run cooler than the stock unit?
Yes, the high-power SCR technology and sealed encapsulation are specifically designed to dissipate heat more efficiently than many standard regulators, promoting cooler operation.
Does it meet OEM specifications for my 1984-1990 Sportster?
Yes, Harddrive regulators are engineered to meet or exceed original equipment specifications for compatible Harley-Davidson V-twin applications from 1984-1990.
Is this regulator compatible with all 1984-1990 Harley Sportster models?
This regulator is designed for V-twin motorcycles that use OEM part 74523-84a, covering most 1984-1990 Sportster models. Always confirm fitment for your specific year and model.
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 | 820-60144 |
| WEIGHT | 1.03 lb |
