20 Gallon Wheel Well Water Tank (Centered)

Space-Saving Design for Sprinter, Transit & Promaster Van Conversions

The 20 Gallon Wheel Well Water Tank (SP-C-20) is engineered to maximize storage by reclaiming the unused space surrounding your wheel well. Centered over the wheel arch, this tank provides a clean, efficient way to add onboard water capacity without sacrificing interior layout or cabinetry space.

Fitment

Compatible With:

• Mercedes Sprinter 2500 (All Years)

• Sprinter T1N

• Ford Transit (Single Rear Wheel)
  – Transit wheel wells are slightly smaller, allowing extra insulation space

• Ram Promaster
  – Must be elevated 3.5” to clear the larger wheel wells

Placement Options

• Mounts on driver or passenger side

Key Features

Centered Wheel Well Design

Shaped to sit directly over the wheel arch, making use of space that normally remains unusable.

Durable, Food-Safe Construction

• Made from BPA-free, food-grade plastic

• IAPMO TS-4 certified for quality and safety

• Can be used for fresh or grey water

Flexible Plumbing Layout

Includes multiple NPT ports for custom plumbing:

• (2) 1.5" NPT ports (must be drilled out)

• (2) 1/2" NPT ports on each end

• (1) 1.5" NPT top port for fill or level sensor

• Tank must be vented — not rated for pressurization

Efficient Interior Use

Ideal for camper builds that require maximum storage, open walkways, or large cabinetry layouts.

Dimensions

• Capacity: 20 gallons

• Length: 46.5"

• Height: 16"

• Depth: 11"

Why Choose This Tank?

This wheel well tank delivers:

✔ A smart way to add water capacity without losing valuable floor space
✔ Compatibility across Sprinter, Transit, and Promaster platforms
✔ Durable, safe materials built for life on the road
✔ A centered-over-wheel-well design preferred by professional van builders

The 20 Gallon Wheel Well Water Tank offers an ideal balance of capacity, size, and usability—perfect for efficient, space-optimized van conversions.