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Long range fuel tanks
One tank fits the GX550.
LGX550A1 · 81 litre transfer auxiliary
Adds 81 litres down the passenger side. It fills through the factory filler with a T-piece and transfers into the main tank, so you fill up as normal. A new centre exhaust section comes in the kit.
| Part number | LGX550A1 |
| Tank type | Transfer auxiliary |
| Material | Steel |
| Capacity | 81 L |
| Tank location | Down the passenger side |
| Filler point | T-piece in the factory filler neck |
| Fuel supply | Transfers to the main tank |
| Fitting time | 6 hours |
| Modifications | New centre exhaust section supplied |
| Fitment notes | 2024-on models. |
Fuel and range: standard vs Brown Davis
+81 L
more fuel
+101%
more capacity
+675 km
extra range (approx.)
Standard figure is the factory capacity (80 L factory tank). Range assumes 12 L/100 km, typical for a loaded touring 4×4. Towing, sand and corrugations use more fuel. Never run a tank completely dry.
Molly Dixon
Questions
Does the kit include everything I need?
Yes. Every Brown Davis tank comes with the brackets, hoses, fittings and step-by-step instructions. Auxiliary tanks also include the pump or changeover wiring and a gauge.
Will my fuel gauge still work?
Replacement tanks use the factory sender, so your gauge keeps working. Auxiliary tanks come with their own gauge.
Why is the distance-to-empty reading wrong?
The vehicle’s computer still thinks it has the factory tank size, so the distance-to-empty figure will read low. Use the fuel gauge and your trip meter instead.
Does it change my ground clearance?
No. Our tanks follow the factory lines and keep your ramp-over and departure angles.