NW Conversions 28 Gallon Spare Tire Water Tank (SP-ST-28)
Specifications
Capacity: 28 gallons
Dimensions: 28” W × 30” L × 10” H
Weight: 22 lbs
Material: BPA-free, food-grade polyethylene
Venting: Gravity fill/vent required (do not pressurize)
Fit Notes: Designed for Sprinter 2500 (1997–present), Winnebago Revel, and Storyteller; Sprinter 170 Extended and Dually 3500 may require bracket adjustments or spacers.
NW Conversions 28 Gallon Sprinter Spare Tire Water Tank
Introduction
The 28-gallon spare tire water tank is designed to fit Sprinter 2500 vans in the factory spare tire location, providing high-capacity fresh or grey water storage without compromising interior space. No extra hardware is required for standard Sprinter 2500 installations, making it a seamless addition to van conversions.
Features
Factory Spare Tire Fit: Installs directly in the Sprinter 2500 spare tire well using only factory hardware; compatible with Winnebago Revel and Storyteller vans.
Flexible Water Storage: Suitable for fresh or grey water for sinks, showers, or auxiliary systems.
Multiple Plumbing Ports:
Two 1.5” NPT ports and one ½” NPT port on the driver side
One 1.5” NPT port and one ½” NPT port on top for float sensor or vent
Non-Pressurized: Requires venting; not suitable for pressurized systems.
Safe & Durable: Made from BPA-free, food-grade polyethylene.
Certified & Reliable: IAPMO TS-4 certified and manufactured in the USA.
Optional Notes
Ideal for professional upfitters, DIY van builders, or RV conversions needing high-capacity water storage in the spare tire area.
Can be used with a spare tire ladder carrier or installed without a spare tire for full functionality.
Ensures efficient use of otherwise unused space while maintaining flexible interior layouts.

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