Harddrive Speed Sensor 74437-96 - Harley Big Twin & Sportster
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 accurate speedometer and ABS function on your Harley with the Harddrive transmission-mounted speed sensor. This OEM-specification replacement is compatible with Sportster and Big Twin models, as well as most aftermarket 5 and 6-speed transmissions, including Right Side Drive units. It reliably reads wheel speed to keep your bike's systems operating correctly.
Why riders pick this
- OEM transmission-mount design
- Compatible with Sportster and Big Twin models
- Fits most aftermarket 5 and 6-speed transmissions
- Includes Right Side Drive transmission compatibility
A failing speed sensor can lead to erratic speedometer readings, issues with your ABS system, and even affect engine performance. This Harddrive speed sensor is built to OEM specifications, providing a direct and reliable replacement for your V-twin. Its transmission-mounted design ensures precise data collection, which is crucial for modern motorcycle electronics and rider safety.
Precise Data for Critical Systems
- OEM transmission-mount design for accurate readings
- Compatible with Harley Sportster and Big Twin models
- Fits most aftermarket 5 and 6-speed transmissions
- Supports Right Side Drive transmission configurations
Reliable Replacement for Seamless Operation
Whether you're running a stock transmission or an aftermarket setup, this Harddrive speed sensor offers a dependable solution to restore proper functionality. It's engineered for straightforward installation, getting your speedometer and ABS back online quickly. Don't let a faulty sensor compromise your ride; upgrade to a Harddrive for peace of mind.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 237509
- UPC: 191361119170
- Weight: 0.3045 lbs
- Country of Origin: China (Taiwan)
Common questions
Will this speed sensor work with my aftermarket transmission?
Yes, this sensor is designed to be compatible with most aftermarket 5 and 6-speed transmissions, including Right Side Drive units. We recommend verifying your specific transmission brand for less common setups.
What functions does this speed sensor control?
This transmission-mounted speed sensor reads your wheel speed and provides that data to your bike's systems for accurate speedometer readings and proper ABS function.
Does this fit all Harley-Davidson models?
This sensor fits Harley-Davidson Sportster and Big Twin models with OEM transmission mounts, as well as many aftermarket transmissions. Please confirm fitment for your specific year and model using our Shop by Bike tool.
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 | 820-52358 |
| WEIGHT | 0.3 lb |
