The John Deere 5420 fuel tank capacity is 18.83 gal (71.3 L). It is listed with diesel fuel, a half-tank amount of 9.42 gal (35.6 L), and about 4 x 5-gal cans.
Fuel tank capacity18.83 gal (71.3 L)Empty-to-full tank amount
Half tank9.42 gal (35.6 L)Planning guide
5-gal cansabout 4 x 5-gal cans to have enough fuel from emptyPortable fuel estimate
Fuel typedieselUse correct fuel
John Deere 5420 fuel tank capacity specs
Fuel tank capacity
18.83 gal (71.3 L)
Fuel capacity in litres
71.3 L
Half tank amount
9.42 gal (35.6 L)
5-gallon fuel cans
about 4 x 5-gal cans to have enough fuel from empty
10-litre fuel jugs
8 x 10-L jugs
Fuel type
diesel
Estimated full tank fuel weight
134 lb (61 kg) of diesel
Engine horsepower
65 hp
Engine displacement
4.6 L (280.7 cu in)
Fuel capacity per horsepower
0.29 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 5420 fuel planning notes
Fuel capacity note
The John Deere 5420 fuel tank is listed at 18.83 gal (71.3 L). Runtime changes heavily with load, throttle, terrain and implement use.
Refill planning
The John Deere 5420 is easiest to plan by container count: about 4 x 5-gal cans or 8 x 10-L jugs. Do not overfill past the filler-neck guidance.
Fuel type note
For the John Deere 5420, fuel choice is listed as diesel. Capacity tells you how much; fuel type tells you what to put in it.
Full tank weight
The John Deere 5420 tank capacity equals roughly 134 lb (61 kg) of diesel when full. This helps when thinking about transport weight and fuel handling.
Engine context
The engine context for the John Deere 5420 is engine horsepower 65 hp, engine displacement 4.6 L (280.7 cu in), and tank-to-power ratio 0.29 gal per hp. Use this for comparison only; runtime still depends on workload.
Fuel tank capacity guide
This model
18.83 gal
Guide low
18 gal
Guide typical
28 gal
Guide high
50 gal
Compared with a broad Utility tractor guide, not the full tractor dataset.
John Deere 5420 fuel capacity FAQ
How much fuel fits in the John Deere 5420 tank?
The John Deere 5420 tank holds 18.83 gal (71.3 L) from empty. Do not confuse full tank capacity with normal top-up amount.
What is the John Deere 5420 fuel capacity in litres?
In litres, the John Deere 5420 fuel capacity is about 71.3 L based on the listed 18.83 gal (71.3 L) tank size.
How many gallons is half a tank on the John Deere 5420?
Half a tank on the John Deere 5420 is about 9.42 gal (35.6 L). Treat it as a planning number because gauge accuracy varies.
How many 5-gallon cans fill the John Deere 5420?
From empty, the John Deere 5420 needs about 4 x 5-gal cans or 8 x 10-L jugs. If the tank already has fuel, you will need less.
What fuel type does the John Deere 5420 use?
The John Deere 5420 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 5420 run on 18.83 gal (71.3 L)?
The John Deere 5420 may run very different hours on the same 18.83 gal (71.3 L) tank depending on loader work, PTO implements, mowing, pulling, road travel and terrain. Use fuel capacity for planning, not as a fuel-burn rating.
How does the John Deere 5420 tank size compare?
For the John Deere 5420, plan fuel before field work because a full empty-to-full refill is more than a quick splash from one small can.
Official information note
Mistakes do happen. Check the operator manual, service manual and official deere.com website for official fuel capacity specifications.
