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

The NW Conversions 11-Gallon Mercedes Sprinter Undercarriage Water Tank is designed for compact fresh or grey water storage beneath 2007+ Sprinter vans. Its low-profile design fits efficiently under the slider door step area or driver-side mounting locations, preserving interior space for cabinetry and galley layouts.

Built from BPA-free, food-grade polyethylene, this tank is IAPMO TS-4 certified, made in the USA, and engineered for durability in DIY and professional van conversions.

Features

• 11-gallon water capacity
• Undercarriage mounting for space-efficient installation
• Compatible with passenger-side slider area or driver-side under-mount positions
• Suitable for fresh or grey water applications
• Rotomolded BPA-free, food-grade polyethylene construction
• Compatible with AMP Research power steps
• IAPMO TS-4 certified
• Made in the USA

Specifications

• Capacity: 11 gallons
• Dimensions: 37.5" L × 12.25" W × 9.25" H
• Dry weight: 12 lbs
• Material: BPA-free, food-grade polyethylene
• Plumbing connections:
  • 2 × 1½" NPT ports (rear-facing end)
  • 2 × ½" NPT ports (rear-facing end)
  • 1 × 1½" NPT top port (for gravity fill, vent, or sensor)
• Tank type: Non-pressurized (requires venting)

Compatibility & Installation

• Compatible with Mercedes Sprinter (2007–present)
• Gas engine models require a heat shield between tank and exhaust (not included)
• May be adapted to other van platforms with sufficient clearance
• Includes mounting hardware:
  • 2 stainless steel laser-cut straps
  • 3/8” hardware and rivnuts (rivnut tool not included; 17/32” drill bit required)
• Ideal for underbody installation while preserving interior space for storage or cabinetry