Sprinter Wheel Well Water Tank (29 Gallon)

INSTALLATION DOCUMENT

Curious Campervans Sprinter Wheel Well Water Tank – 29.4 Gallons

Maximize your van’s water capacity without sacrificing interior space with the Curious Campervans 29.4 Gallon Sprinter Wheel Well Water Tank. Designed to fit neatly around the Mercedes-Benz Sprinter wheel well, this freshwater tank transforms otherwise unused space into practical onboard water storage for extended off-grid travel.

Constructed from food-grade, BPA-free linear low-density polyethylene (LLDPE) and approved for potable water use in Canada and the United States, this tank also helps reduce road noise around the wheel well area for a quieter driving experience.

Features

• Custom fit around the Mercedes-Benz Sprinter wheel well
• Space-efficient design preserves interior cargo capacity
• Symmetrical design allows installation on driver or passenger side
• Squared edges simplify integration into custom builds
• Additional weight placement over the rear axle may improve traction
• Helps reduce road noise around the wheel well
• Food-grade, BPA-free construction
• Durable polyethylene designed for long-term outdoor use
• Compatible with KUS S5U Water Level Sender
• Optional fittings and mounting kits available

Specifications

• Capacity: 29.4 US gal / 111.2 L
• Dimensions (L × W × H): 47" × 15.5" × 15.5"
• Material: Linear low-density polyethylene (LLDPE)
• Wall Thickness: Approx. 3/16"
• Certification: Food-grade / BPA-free / CSA approved
• Thread Type: Female NPT

Ports & Connections

• 1 × 1½" drill-out membrane port (top, one end)
• 2 × 1¼" drill-out membrane ports (top)
• 2 × 1¼" drill-out membrane ports (one per end)
• 2 × ¾" ports (one per end)
• 4 × ½" ports (two per end)
• Membrane ports only require drilling if used

Available Add-On Kits

• Fresh Water Fittings Kit
• Aluminum Strapping Kit
• Water Level Sender & Gauge Kit

Fresh Water Fittings Kit Includes

• 1 × 1¼" PVC 90°
• 2 × ¾" PVC 90°
• 1 × ¾" PVC ball valve
• 3 × PVC nipples (6", 4", 1½")
• 1 × ½" poly adaptor
• 2 × ½" poly elbows
• 1 × ¾" PVC plug
• 2 × ½" PVC plugs
• Fill port
• Hose clamps
• Teflon tape
• 5 ft fill hose
• 5 ft ⅝" ID vinyl hose

Aluminum Strapping Kit Includes

• Heavy-duty weather-resistant aluminum straps
• Aluminum mounting hardware
• Strap dimensions: 1/8" thick × 1.5" wide

How It Works / Installation Overview

The tank installs directly around the Sprinter wheel well to convert unused space into integrated water storage without reducing overall interior width. Installation is compatible with vans equipped with or without flooring.

Its symmetrical design allows mounting on either the driver or passenger side, and dual-tank configurations can be installed to increase total onboard water capacity.

Tank fittings are spin-welded during manufacturing. Additional ports or modifications require specialized spin-welding equipment.

Compatibility

• Compatible with Mercedes-Benz Sprinter vans (all wheelbases)
• Fits a single wheel well position
• Compatible as an interior water tank for most vans
• Compatible with KUS Water Level Sensors and Gauges
• Compatible with 17 Gallon Sprinter Undermount Water Tank
• Dually Sprinter applications require the dedicated wheel well tank version
• T1N compatibility not officially verified — compare wheel well measurements before installation