The Kubota Z422 machine engine horsepower found is 24 hp. PTO horsepower found is 22.5 hp.
Engine HP24 hp
PTO HP22.5 hp
Power / weight26.5 hp per 1,000 lb
Kubota Z422 Horsepower Specs
Engine horsepower
24 hp
PTO horsepower
22.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
44.3 cu in (0.73 L)
Operating weight
904 lb (410 kg)
PTO-to-engine ratio
93.8% of engine horsepower
Power-to-weight
26.5 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
PTO horsepower benchmark
This model
22.5 hp
Average
18 hp
Low
8 hp
High
35 hp
Operating weight benchmark
This model
904 lb
Average
1,200 lb
Low
500 lb
High
2,600 lb
Power-to-weight benchmark
This model
26.5 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 Z422 Horsepower FAQ
Engine horsepower
The Kubota Z422 machine engine horsepower found is 24 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota Z422 is 22.5 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota Z422 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 Z422 is 3,600 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Kubota Z422 include 44.3 cu in (0.73 L) displacement.
Operating weight
The operating weight found for the Kubota Z422 is 904 lb (410 kg). Weight matters because the same horsepower feels different in a light mower than in a heavy tractor.
PTO-to-engine horsepower ratio
The PTO-to-engine horsepower ratio for the Kubota Z422 is 93.8% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota Z422 is 26.5 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
When comparing the Kubota Z422, engine horsepower is the headline figure, while PTO horsepower is the better implement-sizing 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.
