55L Fresh Water Tank Kit (Top Fill) - Mercedes Sprinter (RWD 2006–Present)

This 55 litre underfloor fresh water tank kit (Top Fill) is designed specifically for the Mercedes Sprinter RWD (2006–present). It installs perfectly along the driver’s-side sill behind the exhaust, using the large RWD sill cavity for secure and discreet fresh-water storage.

Constructed from high-strength, algae-resistant polyethylene, the tank offers long-lasting durability with a matt-black finish suitable for underbody installation.

What’s Included (Top Fill Kit)

1 × 55L Fresh Water Tank (1140 × 300 × 175 mm)

1 × ½" Elbow (for breather pipe)

1 × ½" Straight Connector (to connect to pump line)

1 × 1½" / 40mm Elbow (for large inlet hose)

1 × 1m Length of ½" Breather Pipe

1 × 1m Length of 40mm Blue Flexible Inlet Pipe

1 × Black Locking Filler Neck + 2 Keys

3 × Jubilee Clips (for smaller pipe connections)

2 × 40mm Wire Hose Clips (for securing fill hose)

1 × Universal Tank Strap Mounting Kit & Fixings

A complete, ready-to-install fresh-water top-fill system.

Locating Instructions — Sprinter RWD (Top Fill)

Installs longitudinally along the driver’s-side sill, positioned behind the exhaust box.

Filler neck mounts to the body panel; the 40mm hose routes directly into the tank’s inlet port.

Ensure clearance from exhaust routing, heat shields, brake lines and handbrake cable.

Important Information

Compatible water-level sensors available (Victron & SRNE).

Tank is leak-tested and may contain minor water traces.

Clean thoroughly before use with drinking water.

Specifications

Capacity: 55 litres

Dimensions: 1140 × 300 × 175 mm

Material: Polyethylene