Harddrive 40MM CV Carburetor - V-Twin
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.
The Harddrive 40mm CV Carburetor is built as a direct OEM Keihin interchange for V-twin motorcycles, offering reliable performance right out of the box. It comes pre-assembled with a brass fuel inlet and a selection of tuning jets, ready for installation on compatible manifolds.
Why riders pick this
- 40mm CV carburetor for V-twin motorcycles
- Direct interchange for OEM Keihin CV carbs
- Upgraded brass fuel inlet for durability
- Includes fuel line and vent hose
- Multiple tuning jets for custom applications
When your V-twin needs a new heart for its fuel system, the Harddrive 40mm CV Carburetor delivers. This unit is designed as a direct replacement for OEM Keihin CV carbs, making it a straightforward upgrade or repair. It arrives with an upgraded brass fuel inlet and essential tuning jets, ensuring your Harley or Indian runs strong.
Optimized for Performance and Reliability
- 40mm CV carburetor body for consistent fuel delivery
- Upgraded brass fuel inlet for enhanced durability
- Includes fuel line and vent hose for convenience
- Multiple tuning jets for dialing in your V-twin's performance
- Direct interchange with OEM Keihin CV carburetors
Ready for the Road
This Harddrive carburetor is more than just a replacement; it's a performance-minded component. With its pre-assembled design and included tuning jets, you can fine-tune your V-twin for optimal throttle response and power. It's compatible with stock-style choke cables, simplifying the swap and getting you back on the road with improved carburation.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 40037
- UPC: 191361512230
- Bore: 40mm
- Type: CV Carburetor
- Dimensions: 6.5 in L × 5 in W × 4.5 in H
- Weight: 3 lbs
- Country of Origin: China (Mainland)
Common questions
What's included with this 40mm CV carburetor?
The carburetor body, fuel line, and vent hose are included. Choke cables and rebuild kits are sold separately.
Will this carburetor fit my Harley-Davidson or Indian Motorcycle?
This 40mm CV carb is designed to fit most V-twin motorcycles with OEM Keihin CV carburetor mounting. Please verify your bike's intake manifold flange before ordering.
Do I need to tune this carburetor after installation?
Yes, while it comes with a selection of tuning jets, proper tuning is recommended after installation to ensure optimal performance for your specific V-twin setup.
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 | Intake/Carb/Fuel System |
| SKU | 820-27500 |
| WEIGHT | 3.0 lb |
