Harddrive Left-Side Speedometer Drive OE# 67166-88 - Harley Softail
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.
A functional speedometer is key for safe riding and avoiding unnecessary tickets. This Harddrive left-side speedometer drive is a direct OE-specification replacement for OE# 67166-88, ensuring your speed readings are accurate.
Why riders pick this
- Direct OE replacement for 67166-88
- Transfers wheel rotation to speedometer cable
- Restores accurate road speed readings
- Compact and durable design
When your factory speedometer drive wears out, you'll notice erratic readings or no speed indication at all. This Harddrive unit is built to OE specifications, providing a reliable mechanical link from your wheel to your speedometer cable. It's a critical component for maintaining accurate road speed information on your V-twin.
Restore Accurate Speed Readings
- Direct OE replacement for part number 67166-88
- Ensures proper transfer of wheel rotation to the speedometer cable
- Helps eliminate erratic or non-functional speedometer displays
Seamless Integration for Your Softail
Designed for straightforward installation, this speedometer drive integrates directly into your existing setup. It's an ideal choice for riders looking to restore their bike's original functionality without complicated modifications. If your Softail Springer or Softail Bad Boy uses OE# 67166-88, this Harddrive drive will get your speedo working correctly again.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 51-021
- UPC: 191361165498
- Length: 5.98 in
- Width: 5 in
- Height: 1.49 in
- Weight: 0.6613 lbs
- Country of Origin: China (Taiwan)
Common questions
What are the signs of a failing speedometer drive?
Common signs include an erratic speedometer needle, a speedometer that stops working entirely, or grinding noises from the drive area.
Is this a genuine Harddrive part?
Yes, this is a genuine Harddrive speedometer drive, manufactured to OE specifications for reliable performance.
Will this fit my Softail Springer?
This speedometer drive is designed for Harley-Davidson Softail Springer models that use OE# 67166-88. Always confirm your motorcycle's specific part number before ordering.
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 | Drive |
| SKU | 820-50401 |
| WEIGHT | 0.66 lb |
