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HARDDRIVE
SKU: 820-60120
Harddrive Black Regulator - Harley Dyna 2004-2005
$238.95
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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.
Keep your 2004-2005 Dyna's electrical system in peak condition with this Harddrive regulator. Engineered to meet or exceed OEM specifications, it ensures reliable charging and battery performance.
Why riders pick this
- Meets or exceeds OEM specifications
- High-power SCR technology for efficient charging
- Sealed, high-temperature encapsulation
- Improved heat dissipation with advanced circuit board
- OEM-grade wiring harness
A properly functioning regulator is essential for the health of your V-twin's electrical system. This Harddrive unit is built with high-power SCR technology and sealed encapsulation, designed to provide consistent, efficient power delivery and withstand the demands of the road.
Consistent Charging Power
- Meets or exceeds OEM specifications for exact fit and function
- High-power SCR (Silicon Controlled Rectifier) technology for efficient energy conversion
- Sealed, high-temperature encapsulation for all-weather protection
- Surface-mount circuit board design for improved heat dissipation
- OEM-grade wiring harness ensures a secure and lasting connection
Maintain Your Dyna's Electrical Health
This Harddrive regulator is a critical component for your Dyna, managing the output from your alternator to charge the battery and power all your electrical components. Its robust design helps prevent common charging system issues, giving you peace of mind on every ride. It's an essential upgrade for any 2004-2005 Dyna owner looking for reliability.
Specifications
- Brand: Harddrive
- Manufacturer Part #: H3104
- UPC: 191361169984
- Dimensions: 5 in L × 5 in W × 2.75 in H
- Weight: 1.7 lbs
- Country of Origin: China (Mainland)
Common questions
Will this regulator fit my 2003 or 2006 Dyna?
No, this Harddrive regulator is specific to 2004-2005 Harley-Davidson Dyna models. Other model years require different regulators, so please confirm fitment for your specific bike.
What does the regulator do for my motorcycle?
The regulator manages your motorcycle's charging system, converting the alternator's AC voltage to DC to charge the battery and power all the electrical components, maintaining a consistent voltage.
Is this regulator a direct bolt-on replacement?
Yes, this Harddrive regulator is engineered for direct installation on 2004-2005 Dyna models, using OEM-style connections for straightforward replacement.
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 | 820-60120 |
| WEIGHT | 1.7 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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✓ VERIFIED
May 1, 2019
excellent
