The Kubota Z421 machine engine horsepower found is 24 hp.
Engine HP24 hp
Power / weight27.6 hp per 1,000 lb
Kubota Z421 Horsepower Specs
Engine horsepower
24 hp
Rated engine RPM
3,000 rpm
Engine displacement
44.3 cu in (0.73 L)
Engine cylinders
2 cylinders
Operating weight
870 lb (395 kg)
Power-to-weight
27.6 hp per 1,000 lb
Horsepower class
mid-power mower / garden tractor
Horsepower Benchmarks
Engine horsepower benchmark
This model
24 hp
Average
23 hp
Low
12 hp
High
40 hp
Operating weight benchmark
This model
870 lb
Average
1,200 lb
Low
500 lb
High
2,600 lb
Power-to-weight benchmark
This model
27.6 hp/1k lb
Average
20 hp/1k lb
Low
12 hp/1k lb
High
35 hp/1k lb
Benchmarks are general reference ranges for lawn and garden tractors and mowers.
Kubota Z421 Horsepower FAQ
Engine horsepower
The Kubota Z421 machine engine horsepower found is 24 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
Horsepower class
The Kubota Z421 is listed as mid-power mower / garden tractor based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota Z421 is 3,000 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Kubota Z421 include 44.3 cu in (0.73 L) displacement and 2 cylinders.
Operating weight
The operating weight found for the Kubota Z421 is 870 lb (395 kg). Weight matters because the same horsepower feels different in a light mower than in a heavy tractor.
Power-to-weight
The calculated power-to-weight figure for the Kubota Z421 is 27.6 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
For the Kubota Z421, use 24 hp as the main horsepower comparison figure.
Official information note
Mistakes do happen. Check the operator manual, service manual and official kubotausa.com website for official horsepower, PTO horsepower, engine RPM, torque and operating-weight specifications before buying implements or servicing the machine.
