The Drag Specialties Mustang Gas Tank is a Fat Bob–style steel fuel tank designed for custom Harley-Davidson applications. Featuring classic ribbed styling and a single-cap configuration, this tank delivers traditional custom aesthetics while maintaining durability for custom builds and restorations.
With an approximate 3.3-gallon capacity and low-tunnel design, this tank is ideal for carbureted motorcycles requiring a classic Fat Bob profile. Manufactured from steel and shipped in a raw finish, the tank allows builders to properly fit, pressure test, and prepare the surface before final paint for best results.
Designed for custom applications, this tank includes a 3/8" NPT petcock mount and dual 1/4" NPT crossover fittings, making it suitable for a wide range of custom Harley projects where fitment verification is required.
Features
Fat Bob–style custom application fuel tank
Ribbed top design for classic custom appearance
Approximately 3.3 gallon fuel capacity
Durable steel construction
Single gas cap configuration
3/8" NPT petcock mount
Dual 1/4" NPT crossover fittings
Ships unpainted for custom finishing
Bolt-on mounting tabs included
Specifications
Style: Fatbob, Smooth or Ribbed
Application: Carbureted models only. NOT for use on fuel-injected models.
Material: Steel
Color/finish: Raw
Tank capacity: 3.3 US gallons (12.5 liters)
Length: 19-3/4" (50 cm) including mounting tabs
Width: 11-1/2" (29 cm)
Height/depth: 7-1/2"
Fuel tank outlet size: 3/8" NPT
Cap style: Cam
Mounting style: Bolt-on
Riding style: Street
Fitment
Custom application fuel tank.
Designed for carbureted Harley-Davidson and custom motorcycle builds
Not for use on fuel-injected models
Smooth: 1973–1981 style gas cap
Ribbed: 1982–Early 1996 Harley-Davidson threaded gas cap
Fitment and clearance must be verified prior to painting or final installation
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