Transit Undermount Water Tank (10 Gallon)

10.43 Gallon Ford Transit Undermount Water Tank

Features:

• Space-Saving Undermount Design – Mounts under your Transit van’s chassis to free up interior storage.
• Driver or Passenger Side Compatibility – Designed to fit securely on either side of the vehicle.
• Low Profile – Maintains ground clearance while providing essential water storage.
• Fresh or Grey Water Use – CSA-approved, BPA-free materials suitable for drinking water or grey water.
• Expandable System – Compatible with fittings, strapping, gauges, and other Transit-specific water tanks.

Product Description

Maximize your van’s interior space with this 10.43-gallon undercarriage water tank, specifically designed to fit the Ford Transit (all wheelbases, 2015–present). Whether you’re storing freshwater or managing grey water, this tank offers a compact and versatile solution for vanlife or commercial use.

Constructed from food-grade linear low-density polyethylene, the tank is both CSA-certified and BPA-free for safe water storage. With multiple NPT-threaded ports, including drill-out membrane ports, the design accommodates various plumbing configurations. Its low-profile form ensures minimal impact on ground clearance.

This tank can be mounted on either the passenger or driver side. For a hassle-free install on the passenger side, an aluminum strapping kit is available. For driver-side installs, we recommend corrosion-resistant galvanized or aluminum slotted strapping and 1/4" riv-nuts.

Need more water capacity? Pair this tank with our:

• 17 Gallon Transit Undermount Water Tank
• 29 Gallon Transit Wheel Well Water Tank
• [32 Gallon Dually Wheel Well Water Tank]

Dimensions & Capacity

• Tank Volume: 10.43 Gallons / 39.4 Litres
• Dimensions (L x W x H): 36" x 9.5" x 8"
• Material: Food-grade linear low-density polyethylene
• Certifications: CSA Approved, BPA-Free

Port Configuration

• Top:
  • 1 x 1 ½" membrane port (drill-out)
  • 1 x 1 ¼" membrane port (drill-out)
• End:
  • 1 x 1 ¼" membrane port (drill-out)
  • 1 x ¾" port (open)
  • 2 x ½" ports (open)
• Threads: All ports are female NPT
• Orientation: Typically mounted with ports facing the rear but can face either direction

Add-On Kits (Optional)

Grey Water Fittings Kit

Includes PVC fittings, ball valve, nipples, adaptors, hose clamps, vinyl hose, and Teflon tape.

Fresh Water Fittings Kit

Includes fill port, PVC fittings, ball valve, vinyl hose, adaptors, hose clamps, and Teflon tape.

Strapping Kit (Passenger Side Only)

Made from 1/8" thick, 1.5" wide weather-resistant aluminum for secure undermount installation.

Water Level Sender & Gauge Kit

Tank includes a port designed for use with the KUS S5U Water Level Sender (sold separately).

Installation & Compatibility

• Vehicle: Ford Transit (2015–present)
• Fitment: All wheelbases
• Mounting Options:
  • Passenger Side: Compatible with included aluminum strapping kit
  • Driver Side: Use corrosion-resistant slotted strapping with 1/4" riv-nuts
• Interior Use: Also compatible for mounting inside any van as a freshwater tank

Installation instructions:

• Freshwater Fittings Kit Instructions
• Grey Water Fittings Kit Instructions
• Strapping Kit Instructions – 10 Gallon Tank (Passenger Side)