31 Litre Black Tower Wheel Arch Tank incl. Fitting Kit

Description / 31 Litre Black Tower Wheel Arch Tank incl. Fitting Kit
31 litre tower-shaped wheel arch water tank (MDPE) – robust, narrow and space-efficient design for installation over the wheel arch in campervans, motorhomes and caravans. Suitable for fresh and waste water. Supplied with stainless-steel fitting kit (brackets and screws).
Fit & Compatibility
- Capacity: 31 L – tall tower shape maximises vertical space
- Mounts securely over the wheel arch with 6× M8 moulded-in inserts
- Specifically designed for the Ford Transit Custom (from 2023) and VW Transporter T7 (from 2025) for precise installation over the wheel arch on either side of the vehicle
- Universal wheel arch tank – fits both nearside and offside in many other vehicle models
- Dimensions: 35 × 15.5 × 75 cm (H excl./incl. lid)
- Weight: 8.0 kg | Wall thickness: 4-5 mm
- Connections: 1 × 1¼″ BSP inlet (top), 4 × ½″ BSP inserts (two top for vents/fillers, two lower for outlets)
- Colour: Traffic Black (RAL 9017)
- Material: MDPE | Food-grade, UV-stabilised and impact-resistant
Features & Benefits
- Tower design for vertical wheel-arch installation and efficient space use
- Strong 4-5 mm walls for lightweight durability
- Roto-moulded MDPE – seamless, UV-resistant and food-safe
- Universal fit for a wide range of campervan and conversion projects
- Quick installation with stainless-steel fitting kit included
Installation & Handling
- Includes 1¼″ BSP filler and 4 × ½″ BSP ports for venting or outlet connections
- 6× M8 threaded inserts for secure mounting to vehicle frame or floor
- Stainless-steel fitting kit included (brackets and screws)
- For adding extra connections such as fillers, vents or outlets use our PP Tank Connection Sets
Applications
- Campervans & motorhomes: 31 L wheel arch tank for fresh or waste water
- Caravans & RVs: compact tower tank for vertical installations
- Professional vehicle builders: universal fit for Transit Custom, T7 and many other vehicles
Drawings & Certificates
Technical drawing, WRAS food-safety certificate and REACH/RoHS compliance available for download below.
Drawings & Certificates
More Information
| General Information | |
|---|---|
| Capacity (L) | 31 |
| Dimensions (LxWxH cm) | 35 x 15.5 x 75 |
| Height incl. Lid (cm) | 75 |
| Shape & Type | Wheel Arch Tank |
| Weight (kg) | 8 |
| Material & Durability | |
| Material | MDPE |
| Wall Thickness (mm) | 4 |
| Food-Safe Certification | WRAS approved - natural / black / light blue |
| UV Resistance | Yes |
| Temperature Resistance (°C) | max. + 70°C |
| Chemical Resistance | Yes with undrilled BSP Outlet |
| Suitable for Waste Water & Diesel | Yes |
| Design Features | |
| Baffles | No |
| 3D file available | Yes, on request |
| Connections & Installation | |
| BSP Connections | Yes |
| BSP Connection Size | 4x 1/2" / 1x 1 1/4" |
| Spin Weld Outlet possible | No |
| Installation Type | upright, vertical |
| Mounting Options | Fitting Kit |
| Accessory Compatibility | Brass & Plastic, Filters, Float-Valves |
Installation Push-In BSP Fittings
Our Push-In BSP Fittings can be installed quickly, easily, and completely from the outside; even in areas that are not accessible from the inside. This allows connections to be made flexibly at any flat section of the water tank; without opening or dismantling the tank.
Simple. Fast. Flexible. Our PP tank connectors feature an external thread from ½" to 2" and an internal thread from 3/8" to 1 ½" inside the fitting.
Tip: For liquids other than water, versions with NBR seals (diesel-resistant) and FKM seals (chemical-resistant) are available
Video: Installing Push-In BSP Fitting on watertank























