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Northwest Conversions 25 Gallon Dually Wheel Well Water Tank

$ 329.00
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The Northwest Conversions 25 Gallon Dually Wheel Well Water Tank is designed to use the wasted space around the well. It is designed to fit the Sprinter 3500, Sprinter T1N and Transit dual wheel vans. The tank can also fit other vehicle makes and models.

Note: Free Shipping in Continental US!

Key Features: Northwest Conversions 25 Gallon Dually Wheel Well Water Tank

  • 25 Gallon Wheel Well Water tank
  • Designed for the Sprinter 3500 Dually.  Fits Transit Dually also.
  • Will fit other makes and models
  • 46" Long, 20" Tall and 14" Wide
  • (2) 1.5" NPT ports and (2) 1/2" NPT Ports on larger end
  • (1) 1.5" NPT port on TOP
  • (1) 1.5" NPT port and (1) 1/2" NPT port on end that goes above wheel well
  • Support plate and hardware for the support plate are included.
  • TRANSIT Van wheel wells are slightly smaller than the Sprinter so there is a bit more room for insulation around wheel well.
  • **PROMASTER**  needs to be elevated 3.5" to fit the large wheel wells.
  • Can be placed either driver or passenger side
  • Tank is designed NOT to be PRESSURIZED  (I.e.  Needs to be vented).
  • Tanks are made from BPA Free Food Grade Plastic
  • IAPMO TS 4 Tested and Certified
  • Made in the USA

Specifications: Northwest Conversions 25 Gallon Dually Wheel Well Water Tank

Weight: 28 lbs
Dimensions: 48 × 14 × 20 in

Vehicle fitment

Product type
Water system component
Vehicle
Camper vans, RVs, trailers, and mobile builds
Summary
Camper vans, RVs, trailers, and mobile builds that need a compatible water system component. Confirm capacity, fitting sizes, hose routing, mounting location before ordering. Product listing notes: Northwest Conversions 25 Gallon Dually Wheel Well Water Tank The Northwest Conversions 25 Gallon Dually Wheel Well Water Tank is designed to use the wasted space around the well. It is designed to fit the Sprinter 3500, Sprinter T1N and Transit dual wheel vans. The tank can also fit other vehicle makes and models. 25 Gallon Wheel Well Water tank

Fitment FAQ

What does this Northwest Conversions 25 Gallon Dually Wheel Well fit?

This Northwest Conversions 25 Gallon Dually Wheel Well fits Camper vans, RVs, trailers, and mobile builds.

Is this product vehicle-specific?

This water system component is not tied to one van generation. Fit depends on measurements, installation requirements, and the build layout.

What should I verify before ordering?

Confirm capacity, fitting sizes, hose routing, mounting location before checkout.

What installation details matter?

Confirm capacity, fitting sizes, hose routing, mounting location before ordering. Use professional installation when safety-critical, structural, electrical, fuel, water, or suspension work needs to be verified.

Who is this product best for?

This water system component is intended for camper van conversions, RV upgrades, overland builds, and mobile installations where the product specifications match the build.

Campervan HQ fitment guide

Northwest Conversions 25 Gallon Dually Wheel Well Water Tank for camper van and RV builds

Northwest Conversions 25 Gallon Dually Wheel Well Water Tank supports Camper vans, RVs, trailers, and mobile builds applications where fitment, measurements, installation requirements, and build layout should be confirmed before ordering.

Why choose this product?

  • Supports camper van, RV, and mobile build planning
  • Helps confirm measurements, installation needs, and clearances before checkout
  • Useful for matching the product to the build layout before ordering

Installation context

  • Confirm measurements and clearances
  • Review wiring, mounting, sealant, or material requirements where relevant
  • Use professional installation when the build requires it

Compatibility notes

Camper vans, RVs, trailers, and mobile builds that need a compatible water system component. Confirm capacity, fitting sizes, hose routing, mounting location before ordering. Product listing notes: Northwest Conversions 25 Gallon Dually Wheel Well Water Tank The Northwest Conversions 25 Gallon Dually Wheel Well Water Tank is designed to use the wasted space around the well. It is designed to fit the Sprinter 3500, Sprinter T1N and Transit dual wheel vans. The tank can also fit other vehicle makes and models. 25 Gallon Wheel Well Water tank

Common use cases

  • Camper van conversions
  • RV upgrades
  • Trailer and overland builds