Quick answer:
The Kubota Z421T machine fuel tank capacity found is 3.6 gal (13.6 L). Fuel type is diesel.
Fuel tank3.6 gal (13.6 L)
Fuel typediesel
5-gal cansone 5-gal can
Full fuel weightabout 26 lb (12 kg) of diesel
Kubota Z421T Fuel Tank Specs
| Fuel tank capacity | 3.6 gal (13.6 L) |
|---|---|
| Fuel type | diesel |
| Engine model | Kubota Z421T is a zero-turn mower |
| Engine displacement | 44.5 cu in (0.73 L) |
| Fuel tank size class | medium mower fuel tank |
| 5-gallon fuel cans | one 5-gal can |
| 10-litre fuel jugs | about 2 x 10-L jugs |
| Estimated full tank fuel weight | about 26 lb (12 kg) of diesel |
Fuel Tank Benchmarks
Fuel tank capacity benchmark
Benchmarks are general reference ranges for lawn and garden tractors and mowers.
Kubota Z421T Fuel Tank FAQ
| Fuel tank capacity | The Kubota Z421T machine holds 3.6 gallons, which is about 13.6 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 Z421T machine is diesel. Match the fuel type to the operator manual and the engine fitted to your exact model. |
| Fuel tank size class | The Kubota Z421T is listed as having a medium mower fuel tank based on the fuel tank capacity found. |
| Fuel cans needed from empty | From empty, the Kubota Z421T needs one 5-gal can or about 2 x 10-L jugs to cover a full refill. |
| Estimated full tank fuel weight | A full tank on the Kubota Z421T adds about 26 lb (12 kg) of diesel before allowing for the tank itself. |
| Engine specs found | Engine specs found for the Kubota Z421T include Kubota Z421T is a zero-turn mower, 44.5 cu in (0.73 L). |
| Fuel refill planning note | Plan around roughly 3.6 gal of fuel for a full refill. This is best treated as a short-job or frequent-refill tank. Tank class: small fuel tank. Fuel type: diesel and gasoline. |
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.


