Harddrive Fat Bob 5-Gallon Fuel Tank - Harley 4-Speed Big 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.
This Harddrive Fat Bob fuel tank is a faithful reproduction designed for classic Harley-Davidson 4-Speed Big Twin frames through 1984. Built to OEM specifications, it offers a 5-gallon capacity, providing extended range for your vintage ride. Shipped in raw metal, it's ready for your custom paint and finish.
Why riders pick this
- OEM-spec reproduction for classic Harley-Davidson 4-Speed Big Twin
- 5-gallon capacity for extended range
- Raw metal ready for custom paint and finish
- Accepts FX dual-dash or FL-FXWG large-speedo mounting
- Compatible with OEM and aftermarket fuel caps and valves
When restoring a classic Harley-Davidson or building a period-correct custom, the fuel tank is a critical component for both aesthetics and function. This Harddrive Fat Bob tank delivers the iconic look and reliable performance needed for your project. Designed for 4-Speed Big Twin frames up to 1984, it’s a solid foundation for a show-winning finish.
Authentic Reproduction for Classic Builds
- Faithful reproduction of the classic Fat Bob fuel tank design
- Constructed to OEM specifications for precise fitment on 4-Speed Big Twin frames
- Generous 5-gallon capacity for longer rides between fill-ups
- Raw metal finish provides a blank canvas for custom paint and bodywork
- Compatible with both FX dual-dash and FL-FXWG large-speedo instrument mounting
Build Your Vision
This tank is ideal for restoration projects, crash repairs, or ground-up custom builds. Its raw metal construction means you have complete control over the final look, allowing for seamless integration with your bike's aesthetic. Remember to test fit the tank before any prep work or paint to ensure proper alignment and clearance on your specific frame. Professional prep and sealing are recommended for optimal longevity and safety.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 011302
- UPC: 191361146466
- Capacity: 5 gallons
- Length: 19 in
- Width: 15 in
- Height: 11 in
- Weight: 16.45 lbs
- Country of Origin: China (Taiwan)
Common questions
Will this tank fit my 1985 or newer Harley-Davidson?
No, this Harddrive Fat Bob tank is specifically designed for 4-Speed Big Twin frames through 1984. It will not fit 1985+ models or Softail frames due to different mounting points and frame geometry.
Does this tank come painted or ready for immediate installation?
No, this tank ships in raw metal. It requires final prep, bodywork, paint, and internal sealing before it can be installed and used safely. We recommend professional finishing.
What kind of fuel cap and petcock does this tank use?
This tank is designed to be compatible with OEM and aftermarket fuel caps and fuel valves (petcocks) for the specified vintage Harley-Davidson models.
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 | Body |
| SKU | 820-52206 |
| WEIGHT | 16.45 lb |
