The John Deere 9RX 640 fuel tank capacity is 400 gal (1,514.1 L). It is listed with diesel fuel, a half-tank amount of 200 gal (757.1 L), and about 80 x 5-gal cans.
Fuel tank capacity400 gal (1,514.1 L)Empty-to-full tank amount
Half tank200 gal (757.1 L)Planning guide
5-gal cansabout 80 x 5-gal cans to have enough fuel from emptyPortable fuel estimate
Fuel typedieselUse correct fuel
John Deere 9RX 640 fuel tank capacity specs
Fuel tank capacity
400 gal (1,514.1 L)
Fuel capacity in litres
1,514.1 L
Half tank amount
200 gal (757.1 L)
5-gallon fuel cans
about 80 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs
152 x 10-L jugs
Fuel type
diesel
Estimated full tank fuel weight
2,840 lb (1,288 kg) of diesel
Engine horsepower
640 hp
Fuel capacity per horsepower
0.625 gal per hp
Fuel capacity is a tank-size figure. Actual top-up amount and runtime depend on remaining fuel, workload, throttle use, terrain and machine condition.
John Deere 9RX 640 fuel planning notes
Fuel capacity note
The main fuel number for the John Deere 9RX 640 is 400 gal (1,514.1 L). Use it as the empty-to-full tank amount, not as a guaranteed runtime figure.
Refill planning
The John Deere 9RX 640 is easiest to plan by container count: about 80 x 5-gal cans or 152 x 10-L jugs. Do not overfill past the filler-neck guidance.
Fuel type note
The listed fuel type for the John Deere 9RX 640 is diesel. Match the fuel type before filling; do not assume every John Deere machine uses diesel.
Full tank weight
The John Deere 9RX 640 tank capacity equals roughly 2,840 lb (1,288 kg) of diesel when full. This helps when thinking about transport weight and fuel handling.
Engine context
The engine context for the John Deere 9RX 640 is engine horsepower 640 hp and tank-to-power ratio 0.625 gal per hp. Use this for comparison only; runtime still depends on workload.
Fuel tank capacity guide
This model
400 gal
Guide low
150 gal
Guide typical
280 gal
Guide high
420 gal
Compared with a broad 9 Series guide, not the full tractor dataset.
John Deere 9RX 640 fuel capacity FAQ
How much fuel fits in the John Deere 9RX 640 tank?
The John Deere 9RX 640 tank holds 400 gal (1,514.1 L) from empty. Do not confuse full tank capacity with normal top-up amount.
What is the litre conversion for the John Deere 9RX 640 fuel tank?
In litres, the John Deere 9RX 640 fuel capacity is about 1,514.1 L based on the listed 400 gal (1,514.1 L) tank size.
How many gallons is half a tank on the John Deere 9RX 640?
Half a tank on the John Deere 9RX 640 is about 200 gal (757.1 L). Treat it as a planning number because gauge accuracy varies.
How many 5-gallon cans fill the John Deere 9RX 640?
From empty, the John Deere 9RX 640 needs about 80 x 5-gal cans or 152 x 10-L jugs. If the tank already has fuel, you will need less.
What fuel type does the John Deere 9RX 640 use?
The John Deere 9RX 640 is listed for diesel. Confirm at the cap, decal or manual before refueling if the machine history is unclear.
How many hours will the John Deere 9RX 640 run on 400 gal (1,514.1 L)?
Runtime depends on tillage load, PTO load, hydraulic demand, pulling load, transport speed, throttle and field conditions. The 400 gal (1,514.1 L) tank gives the storage amount, not a fixed hour rating.
What does the John Deere 9RX 640 tank size mean for refueling?
With a listed capacity of 400 gal (1,514.1 L), the John Deere 9RX 640 is best planned as a large tractor tank for fuel handling.
Official information note
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.
