The Kubota M6121 tractor fuel tank capacity found is 50.2 gal (190 L). Fuel type is diesel, and the DEF tank capacity found is 10 gal (37.9 L).
Fuel tank50.2 gal (190 L)
Fuel typediesel
5-gal cansabout 11 x 5-gal cans
Full fuel weightabout 356 lb (162 kg) of diesel
Kubota M6121 Fuel Tank Specs
Fuel tank capacity
50.2 gal (190 L)
Fuel type
diesel
DEF tank capacity
10 gal (37.9 L)
Engine
6.1L 4-cylinder diese
Engine horsepower
115 hp
Fuel capacity per horsepower
0.44 gal per hp
Fuel tank size class
large utility-tractor fuel tank
DEF-to-fuel ratio
19.9% of fuel tank capacity
5-gallon fuel cans
about 11 x 5-gal cans
10-litre fuel jugs
about 19 x 10-L jugs
Estimated full tank fuel weight
about 356 lb (162 kg) of diesel
Fuel Tank Benchmarks
Fuel tank capacity benchmark
This model
50.2 gal
Average
31 gal
Low
14 gal
High
58 gal
Engine horsepower benchmark
This model
115 hp
Average
85 hp
Low
45 hp
High
150 hp
Fuel per horsepower benchmark
This model
0.44 gal/hp
Average
0.38 gal/hp
Low
0.22 gal/hp
High
0.7 gal/hp
Benchmarks are general reference ranges for utility tractors.
Kubota M6121 Fuel Tank FAQ
Fuel tank capacity
The Kubota M6121 tractor holds 50.2 gallons, which is about 190 litres. Use that as the refill figure when planning diesel storage, fuel cans or workshop servicing.
Fuel type
The fuel type found for the Kubota M6121 tractor is diesel. Match the fuel type to the operator manual and the engine fitted to your exact model.
Fuel tank size class
The Kubota M6121 is listed as having a large utility-tractor fuel tank based on the fuel tank capacity found.
Fuel cans needed from empty
From empty, the Kubota M6121 needs about 11 x 5-gal cans or about 19 x 10-L jugs to cover a full refill.
Estimated full tank fuel weight
A full tank on the Kubota M6121 adds about 356 lb (162 kg) of diesel before allowing for the tank itself.
DEF tank capacity
The DEF tank capacity found for the Kubota M6121 is 10 gal (37.9 L). DEF is separate from diesel fuel, so do not mix the two tanks.
DEF-to-fuel ratio
The DEF-to-fuel ratio found for the Kubota M6121 is 19.9% of fuel tank capacity.
Engine specs found
Engine specs found for the Kubota M6121 include 6.1L 4-cylinder diese, 115 hp.
Fuel capacity per horsepower
The fuel capacity per horsepower for the Kubota M6121 is 0.44 gal per hp based on the fuel tank and engine horsepower figures found.
Fuel refill planning note
Plan around roughly 50.2 gal of fuel for a full refill. This is a field-work size fuel tank, so storage and clean fuel handling matter. Tank class: medium field/utility tractor fuel tank. Fuel type: diesel. DEF is separate from diesel fuel and should be planned separately.
Official information note
Mistakes do happen. Check the operator manual, service manual and official kubotausa.com website for official fuel capacity specifications before refuelling, servicing or buying parts.
