S&B 36-Gallon Undercarriage Water Tank for 2013–2024 Dodge Ram ProMaster 1500, 2500, 3500 (159" & 159" EXT) – Available at Tameless Performance

Maximize Water Storage with a Space-Saving Undercarriage Design

The S&B 36-Gallon Undercarriage Water Tank is a purpose-built solution for maximizing fresh or grey water capacity in 2013–2024 Dodge Ram ProMaster vans. Designed to mount underneath the chassis, this tank preserves valuable interior space while offering reliable, long-term water storage for extended trips and off-grid adventures.

Key Features

Large 36-Gallon Capacity
This tank holds up to 36 gallons, significantly extending time between water fill-ups, making it ideal for van life, mobile workstations, or long road trips.

Durable, Food-Grade Construction
Constructed from BPA-free, food-grade polyethylene, this tank is safe for potable water and durable enough to withstand road conditions and temperature fluctuations.

TEI Listed and RVIA Approved
Meets recognized safety and quality standards, ensuring the tank is suitable for fresh or grey water storage in recreational vehicle applications.

Precision-Molded Undercarriage Fit
Custom-molded for a perfect fit on 159" and 159" EXT wheelbase ProMaster 1500, 2500, and 3500 vans, this tank offers excellent ground clearance and a low-profile installation.

Compatibility

• Dodge Ram ProMaster 1500, 2500, 3500

• Model Years: 2013–2024

• Wheelbases: 159" and 159" EXT

Installation Notes

• Manual Parking Brake Adjustments May Be Required
  For vans equipped with a manual parking brake, routing adjustments or conversion to an electronic brake may be needed to fit the tank properly.

• Installation Support
  Tank comes with detailed documentation and support for a straightforward installation process, even for DIY enthusiasts.

Conclusion

The S&B 36-Gallon Undercarriage Water Tank, available at Tameless Performance, is a rugged, intelligently designed solution for ProMaster owners seeking to optimize their vehicle’s water storage without sacrificing interior space. With its secure underbody fit, large capacity, and food-grade materials, it’s the perfect upgrade for van lifers, contractors, and off-grid explorers alike.