Vent
Long lasting for the use I put it through
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.
Maintain optimal engine health with the Harddrive Crankcase Breather Filter. This essential component is designed to prevent oil mist and contaminants from entering your intake system, while still allowing your V-twin engine to breathe properly. It's a direct replacement for existing Harddrive breather assemblies on Harley-Davidson and Indian Motorcycle engines.
Proper crankcase ventilation is critical for the longevity and performance of your V-twin. This Harddrive filter ensures that excess crankcase pressure can escape efficiently, without introducing harmful oil mist or particulates into your engine's intake. Its compact design allows for easy integration into your existing Harddrive breather setup, providing peace of mind on every ride.
Regular inspection and replacement of your crankcase breather filter are key to maintaining your V-twin's performance. This Harddrive filter makes that maintenance simple. By keeping your engine's internal environment clean, you help protect vital components and ensure consistent power delivery. It’s a small part that plays a big role in your bike's overall health.
What is the primary function of this crankcase breather filter?
This filter allows your engine to vent excess crankcase pressure safely while effectively filtering out oil mist and other contaminants, preventing them from re-entering the intake system.
How often should I inspect and replace this filter?
You should inspect this filter during routine maintenance, such as oil changes. Replace it annually or more frequently if you notice it's clogged with oil residue or dirt to ensure optimal performance.
Will this filter fit any Harley-Davidson or Indian Motorcycle?
This specific filter is designed to fit V-twin engines equipped with the Harddrive 820-51578 breather assembly. Please verify your current breather setup for compatibility before purchasing.
| BRAND | Harddrive |
| TYPE | Engine |
| SKU | 820-51579 |
| WEIGHT | 0.18 lb |
Long lasting for the use I put it through
Exactly what I needed! Looks great!
ordered the wrong ones, but they look cool sitting on the work bench. will be giving them to my son.
exactly the same as before...correct..g
great item works well looks great
Like the looks and made well perfect for what it is intended for