Harddrive Fat Bob Tank - 3.5 Gallon Cam-Lock Type - Harley Big Twin 4-Speed
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.
Bring your classic Harley Big Twin back to life with this Harddrive Fat Bob reproduction gas tank. With a 3.5-gallon capacity and OEM-specification mounting, it's designed to fit stock 4-speed frames, making it ideal for restorations or period-correct custom builds. This raw steel tank accepts both FX dual-dash and FL-FXWG large-speedo configurations, giving you options for instrumentation.
Why riders pick this
- OEM-spec mounting for Big Twin 4-speed frames
- 3.5-gallon capacity Fat Bob style
- Accepts dual dash or large speedo configurations
- Raw steel, ready for custom paint
- Compatible with OEM and aftermarket fuel components
For enthusiasts of vintage Harley-Davidson Big Twins, this Harddrive Fat Bob tank offers an authentic reproduction with modern build quality. Its 3.5-gallon capacity provides a practical range, while the raw steel construction is ready for your chosen finish – whether it's a factory-correct paint job or a custom scheme. Designed to accept both classic FX dual-dash setups and FL-FXWG large-speedo dashes, this tank ensures compatibility with a range of instrumentation options, preserving the classic look of your machine.
Classic Design, Modern Versatility
- OEM-specification mounting for stock Big Twin 4-speed frames
- Compatible with FX style dual instrument dash or FL-FXWG large speedo dash
- Accepts OEM and aftermarket fuel caps and fuel valves
- 3.5-gallon capacity for classic touring or custom builds
- Raw metal construction, ready for custom prep and paint
Essential Prep for a Lasting Finish
This Harddrive Fat Bob gas tank ships in raw steel, requiring thorough prep work before it's ready for the road. It's crucial to test-fit the tank on your frame, pressure test it for leaks, and properly seal the interior to prevent rust and ensure fuel integrity. After these steps, the tank will need bodywork and paint preparation to achieve a flawless finish that complements your classic Harley Big Twin, ensuring both durability and a show-quality appearance.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 011303
- UPC: 191361146459
- Capacity: 3.5 gallons
- Weight: 16.509 lbs
- Country of Origin: China (Taiwan)
Common questions
Does this tank fit my 1985+ Harley?
No, this tank is engineered for Big Twin 4-speed frames through 1984. Later models require different mounting configurations.
Will this fit my Softail frame?
No, Softail frames are specifically excluded from this fitment. This tank is designed for classic Big Twin 4-speed frames.
Does this tank come ready for paint?
No, the tank arrives as raw steel. It requires final prep, pressure testing, sealing, and paint before installation.
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 | 820-52205 |
| WEIGHT | 16.51 lb |
