Collection: Auxiliary Diesel Fuel Tanks for Ute, 4WD, Trailer and Under Tray use.

Auxiliary Diesel Fuel Tanks. Made and manufactured in Australia for harsh Australian conditions. These Heavy Duty Diesel Tanks offer superior vibration resistance to steel when traveling Australian country roads and corrugation at a superior price point.

Why you will love them:

  • Most tanks provided with in built mounting holes or options to add mounting brackets.
  • Australian made and Owned.
  • Heavy Duty with industry leading thick wall construction.
  • No need for stone guards due to wall thickness and durability.
  • Superior vibration resistance to steel
  • High Quality while remaining cost effective over fabricated tanks.
  • No long lead times: Items are stocked and generally dispatched within 3 working days.

Australian Made, Under Tray Diesel Storage Tanks For Utes

Aqua Armour’s Under Tray Diesel Tanks are built tough for serious touring and remote work. Designed to sit neatly beneath your tray, these slimline tanks provide a secure and space-efficient way to carry extra diesel - perfect for extended off-grid touring where every litre counts.

Constructed with a 6–8mm aimed wall thickness, our under tray diesel storage tanks offer outstanding durability and resistance to vibration stress—far superior to traditional aluminium or steel options. Available in 50L, 80L and 100L sizes, each tank is designed and manufactured in Australia to meet the demands of our harsh conditions and come supplied with high-quality galvanised and brass fittings for maximum longevity and corrosion resistance.

Whether you’re building a touring rig or outfitting a work ute, Aqua Armour’s undertray diesel tanks deliver long-lasting performance, secure fuel storage, and peace of mind - no matter where you're heading on your next trip.