55L Underslung Waste Water Tank Kit – Mercedes Sprinter (RWD, 2006–Present)

This 55 litre underfloor waste water tank kit is purpose-designed for the Mercedes Sprinter RWD (2006–present). It fits perfectly along the driver’s-side sill behind the exhaust, a proven mounting location widely used in professional campervan and motorhome conversions.

Manufactured from high-strength, corrosion-resistant polyethylene, the tank features a discreet matt-black finish and excellent resistance to road debris, salt, algae and long-term moisture exposure.

A threaded access point on the tank allows easy installation of sensors or internal components and enables routine maintenance and cleaning.

What’s Included

1 × 55L Water Tank (L: 1140mm, W: 300mm, D: 175mm)

1 × ½″ Elbow Breather

1 × ¾″ Elbow Outlet Connector

1 × 1m Long ⅜″ Breather Pipe

1 × 1m Long ¾″ Convoluted Black Hose

1 × ¾″ Drain Tap

1 × Universal Mounting Strap Kit & Fixings

Locating Instructions – Mercedes Sprinter RWD

Mounts lengthways along the driver’s-side outer sill.

Positioned behind the exhaust silencer and ahead of the rear axle.

Use the supplied straps to secure the tank to the sill/rail.

Ensure clearance from:

RWD exhaust routing

Heat shields

Handbrake cable run

Fuel & brake lines

Because RWD Sprinters have a deeper sill cavity than FWD/4x4 models, this tank fits neatly without compromising ground clearance.

Important Information

Optional water level senders are available, including Victron & SRNE-compatible models.

Tank may contain small amounts of residual water from leak-testing.

Clean thoroughly before use.

Intended for grey water collection only.

Specifications

Capacity: 55 litres

Dimensions: 1140mm (L) × 300mm (W) × 175mm (H)

Material: Rotomoulded polyethylene

Finish: Matt black

Dry Weight: ~5kg