11-Gallon Mercedes Sprinter Undercarriage Water Tank (SP-UC-11)

SKU: NWS0241
In stock
Regular price $289.00
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Ready to install and hit the road!

All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!

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Claim the unused space under your slider door without drilling a single new hole in your floor. This tank mounts between the Sprinter's frame and the passenger-side slider door step cutout, using otherwise wasted undercarriage space. Ideal as a dedicated grey tank paired with a larger fresh water setup, or used standalone for fresh water.

⚠️ Gas engine Sprinters: The exhaust runs closer to the frame on gas models. A heat shield (not included) should be installed between the tank and exhaust before use.

Dimensions & Weight

  • Size: 37.5" long × 12.25" wide × 9.25" tall
  • Capacity: 11 gallons
  • Weight: 12 lbs

Ports & Plumbing

  • (1) 1.5" NPT port on the rear-facing end
  • (2) 1/2" NPT ports on the rear-facing end
  • (1) 1.5" NPT port on top
  • Not designed for pressurized systems, must be vented

Included With Every Order

  • (2) stainless steel laser-cut mounting straps
  • Stainless 3/8" hardware and 3/8" rivnuts
  • Note: rivnut tool required, not included

Materials & Certifications

  • BPA-free, food-grade polyethylene
  • IAPMO TS 4 Certified
  • Made in the USA

Vehicle Compatibility

  • Mercedes Sprinter 1500/2500/3500 (2007-present), wheelbases 144", 170", and 170" EXT
  • Passenger side, under slider door step area
  • May fit other makes and models, confirm dimensions before ordering
  • Compatible with AMP Research PowerStep Electric Running Boards for 2019-2021 Mercedes Sprinter (part #76264-01A), may be compatible with additional running boards