The Kubota Z231KW machine engine horsepower found is 21.5 hp.
Engine HP21.5 hp
Power / weight43 hp per 1,000 lb
Kubota Z231KW Horsepower Specs
Engine horsepower
21.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
44.3 cu in (0.73 L)
Engine model
Kawasaki FR651V
Operating weight
500 lb (227 kg)
Power-to-weight
43 hp per 1,000 lb
Horsepower class
mid-power mower / garden tractor
Horsepower Benchmarks
Engine horsepower benchmark
This model
21.5 hp
Average
23 hp
Low
12 hp
High
40 hp
Operating weight benchmark
This model
500 lb
Average
1,200 lb
Low
500 lb
High
2,600 lb
Power-to-weight benchmark
This model
43 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 Z231KW Horsepower FAQ
Engine horsepower
The Kubota Z231KW machine engine horsepower found is 21.5 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
Horsepower class
The Kubota Z231KW 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 Z231KW is 3,600 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Kubota Z231KW include Kawasaki FR651V and 44.3 cu in (0.73 L) displacement.
Operating weight
The operating weight found for the Kubota Z231KW is 500 lb (227 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 Z231KW is 43 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
The key power figure found for the Kubota Z231KW is 21.5 hp at the engine.
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.
