Harddrive HD Performance 40V-HP Single Fire Coil - Twin Cam Carbureted
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.
Transform your Twin Cam carbureted Harley's ignition with the Harddrive HD Performance 40V-HP single-fire coil. This high-output coil is engineered to deliver a significantly stronger spark, boosting peak spark voltage by 20% or more. Experience improved cold starts, eliminate high-speed misfires, and even see a bump in fuel economy.
Why riders pick this
- 40V-HP (30,000-volt) output for powerful spark
- 20%+ increase in peak spark voltage
- ION Sense feedback for stock EFI compatibility
- Improves cold starts and eliminates high-speed misfires
- Compatible with Twin Cam carbureted models
The Harddrive HD Performance 40V-HP single-fire coil is a targeted upgrade for carbureted Twin Cam Harley-Davidson models, designed to elevate your ignition system's capabilities. With a potent 30,000-volt output, this coil ensures a robust and consistent spark, leading to a more complete and efficient combustion cycle. Its advanced ION Sense feedback technology is a key feature, allowing it to maintain compatibility with stock Harley EFI systems, ensuring a smooth integration even on carbureted setups that might interact with other EFI components.
Ignite Your Twin Cam's Potential
- High-power 30,000-volt output for a strong, reliable spark
- Increases peak spark voltage by 20% or more over stock
- ION Sense feedback maintains compatibility with stock Harley EFI systems
- Improves cold starting for quicker engine firing
- Eliminates high-speed misfires for consistent power delivery
Precision Engineering for Your Carbureted Ride
This Harddrive performance coil is an ideal choice for Twin Cam riders who prefer the carbureted experience but still want modern ignition reliability and power. It's capable of both Dual Fire and Single Fire operation, offering flexibility for various ignition setups. By providing a hotter, more consistent spark, this coil helps your engine run cleaner and more efficiently, making it a valuable upgrade for everything from daily commutes to long-haul touring on your Harley.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 10-2001
- UPC: 191361439445
- Voltage Output: 40V-HP (30,000 volts)
- Dimensions: 5 in (L) × 3 in (W) × 4 in (H)
- Weight: 3 lbs
- Country of Origin: China (Mainland)
Common questions
Will this coil work with my stock Harley ECU, even on a carbureted bike?
Yes, the ION Sense feedback technology in this coil is engineered to ensure full compatibility with stock Harley EFI electronics, even on carbureted Twin Cam models, without requiring a separate tuner.
Does this coil improve fuel mileage?
By providing a stronger and more consistent spark, this coil can lead to a more efficient combustion, which may contribute to improved fuel economy for your Twin Cam.
Is this coil a direct replacement for my Twin Cam?
This coil is designed for Twin Cam carbureted V-twin motorcycles. Please use our 'Shop by Bike' feature to confirm exact 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 | 820-60408 |
| WEIGHT | 3.0 lb |
