31 Litre Underslung Tank – Ford Transit Custom 2023 Onwards
This 31 litre underslung water tank is designed specifically for the Ford Transit Custom (2023 onwards). Mounted neatly on the offside of the van, it provides a compact and reliable fresh water storage solution without taking up valuable interior space.
Developed by water tank specialists in partnership with campervan conversion experts, this underslung tank is the ideal choice for professional builds and DIY van conversions.
Made by Water Tank experts alongside Camper Converters, the 31 Litre Ford Transit Custom Underslung Water Tank comes with the following features;
Compatibility
- Ford Transit Custom (2023 onwards)
- VW Transporter T7 (2025 onwards)
- Please note – this tank will not fit vehicles with twin sliding doors or Left Hand Drive (LHD) vehicles.
Key Features
- 2 x ½” BSP inlets – choose the most convenient inlet location
- 1 x ½” BSP sump outlet – ensures maximum drainage
- 2 x pre-installed vents – prevents airlocks and improves flow
- 5” internal access lid – easy cleaning and maintenance
- Level sensor recess – ready for water level monitoring systems
- UK manufactured from highly durable polymer
Note: Outlets are pre-drilled as standard.
Optional Extras
- Fitting Kit 2 x Brackets, 6 x TEK 3 Screw, 2 x 50mm Square Plate, 2 x M12 x 30 Flanged Hexset, 2 x M12 Washer
- Plumbing Kit 1 x 1/2″ BSP x 13mm hose tail, 2 x 1/2″ BSP x 13mm 90° hose tail, PTFE tape, 1 x 1/2″ BSP Plug
Product Information
31 Litre Ford Transit Custom Underslung Tank Product Specification Sheet
Ford Transit Custom Water Tank Fitting Instructions













