Mustang Gas Tanks

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