A PERFECT FIT
Space is valuable inside a campervan. Each tank is 3D modelled to fit perfectly around the wheel wells of your van.
Wheel wells are awkward and difficult to build around. Usually, they end up getting boxed in. Why not use that space for water storage?


5 STAR RATINGS
Made from food grade and BPA free polyethylene - the tanks are both approved for drinking water in the US and Canada. The threaded inserts are professionally spin welded into the tank and are guaranteed to never leak.
Speaking of leak-free, the walls are thick and durable. Made from 3/16" polyethylene these tanks can take a beating will last longer than your van will!
IMPROVE TRACTION
Distributing weight over your wheel wells will help increase traction in slick terrain. If you've ever driven an empty cargo van you will know how cautious you need to be on wet and icy roads.

Holding 27 gallons of freshwater goodness, these water tanks are custom-designed to fit around the Sprinter’s wheel well.
If you're looking for more volume, check out our 29 Gallon Wheel Well Water Tank!
- Space Saving - A unique way to make efficient use of that awkward wheel well area and shape.
- Perfectly Shaped - Not only do these tanks mold to the shape of your wheel well but the top and outside are also squared off to account for further building. Last we checked, it’s easier to build a square box than a round one.
- Build Options - Option to choose a passenger or driver side tank - whichever wheel well works best for your build. Need more water? Choose both and place one on either side of your van for mega-volume!
- Distributes Weight - Adds weight over your rear axle to help increase traction if you get in a sticky spot. No more slips and skids, not to mention unwanted wheel wear, thanks to the perfect weight distribution of these tanks.
- Sound Proofing - When it comes to road noise, these tanks step it up with added noise reduction around your wheel well.
- BPA-Free and Food Grade Approved - Feel safe knowing these tanks are food grade CSA approved! Wash the dishes, have a shower, fill the dog bowl, and stay hydrated, while exploring in your van!
- Fittings Kit Add-On Available - Save yourself the headache and multiple trips to the plumbing store when you bundle this tank with our Freshwater Fittings Kit!
- Compatible - Pairs well with our 17 Gallon Sprinter Undermount Tank.
Dimensions & Specifications:
Designed for the Mercedes Sprinter, all wheelbases.
Compatible as an interior water tank, for any van.
Tanks are made from linear low-density polyethylene.
Food grade CSA approved and BPA free - safe for freshwater use.
26.8 US Gallons / 101.4 Litres
44.5” x 13” x 19” (Length x Width x Height)
2 x 1 ¼" port (on top)
1 x 1 ¼" port (on rear end)
1 x ¾" port (on rear end)
2 x ½” ports (on rear end)
1 x ½” ports (on front end)
All ports are NPT female-threaded.
Tank can be placed on either the PASSENGER SIDE or DRIVER SIDE of the van.
- Passenger side tank sits 9” behind wheel well on passenger side / in front of the wheel well on driver’s side.
- Driver side tank sits 9” behind wheel well on drivers side / in front of the wheel well on passenger side.
Fits around the wheel well with or without flooring installed in the van.
More Information:
Full Details of the Grey Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!
Full Details of the Fresh Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!
Full Details of the Stainless-Steel Strapping Kit Add-On
Select this add-on with your tank purchase and save $30 vs buying separately!
Check out our Sprinter Undermount Water Tank (10 Gallon)
Check out our Sprinter Wheel Well Water Tank (29 Gallon)
Check out our Sprinter Dually Wheel Well Water Tank (32 Gallon)
FAQ
Items may be returned within 14 days of delivery. Must be unused, and in original packaging.
You are responsible for return shipping. Water tanks and batteries are subject to an $80 restocking fee.
Please ship your return to:
Curious Campervans
238 Hastings Ave
Penticton, BC, Canada, V2A 2V6
Email us at support@curiouscampervans.com when you are submitting a return, so we can watch out for your item. We will issue a refund, less restocking fee, once we receive the item back in resellable condition.