NW Conversions 28 Gallon Dodge Promaster Wheel Well Water Tank - Center (PM-C-28)

The NW Conversions 28-Gallon Ram Promaster Centered Wheel Well Water Tank is designed to maximize unused space over the wheel well, turning otherwise wasted volume into practical fresh water storage. Its centered layout allows cabinetry, beds, and interior structures to sit flush against the van walls while maintaining a low center of gravity.

Manufactured from BPA-free, food-grade polyethylene, this rotomolded tank is built for durability and long-term use in camper vans, RV builds, and custom overland conversions.

Features

• 28-gallon fresh water capacity
• Centered wheel well design for optimal space utilization
• Flexible installation on driver or passenger side
• Rotomolded BPA-free, food-grade polyethylene construction
• Multiple plumbing ports for customizable system layouts
• Made in the USA

Specifications

• Capacity: 28 gallons
• Dimensions: 48" L × 14" W × 20" H
• Dry weight: 31 lbs
• Plumbing connections:
  • 2 × ½" NPT ports (open)
  • 2 × 1½" NPT end ports (closed; drill as needed)
  • 1 × 1½" NPT top port (closed; drill as needed for fill or level sensor)
• Tank type: Non-pressurized (requires venting)

Compatibility & Installation

• Designed for Ram Promaster wheel well layouts
• Compatible with Mercedes Sprinter and Ford Transit (may leave minor clearance for insulation)
• Suitable for other vans, box trucks, and custom builds (verify dimensions before installation)
• Flexible installation: driver or passenger side depending on layout
• Ports may require drilling depending on plumbing configuration