The Kubota STV40 tractor engine horsepower found is 34.7 hp. PTO horsepower found is 30.6 hp.
Engine HP34.7 hp
PTO HP30.6 hp
Power / weight13.9 hp per 1,000 lb
Kubota STV40 Horsepower Specs
Engine horsepower
34.7 hp
PTO horsepower
30.6 hp
Rated engine RPM
2,670 rpm
Engine torque
88.5 lb-ft (120 Nm)
Engine displacement
109.8 cu in (1.8 L)
Engine cylinders
3 cylinders
Engine
Kubota 1.8L
Operating weight
2,502 lb (1,135 kg)
PTO-to-engine ratio
88.2% of engine horsepower
Power-to-weight
13.9 hp per 1,000 lb
Horsepower class
mid-size compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
34.7 hp
Average
32 hp
Low
16 hp
High
60 hp
PTO horsepower benchmark
This model
30.6 hp
Average
25 hp
Low
12 hp
High
50 hp
Operating weight benchmark
This model
2,502 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
13.9 hp/1k lb
Average
14 hp/1k lb
Low
8 hp/1k lb
High
25 hp/1k lb
Benchmarks are general reference ranges for compact tractors.
Kubota STV40 Horsepower FAQ
Engine horsepower
The Kubota STV40 tractor engine horsepower found is 34.7 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota STV40 is 30.6 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota STV40 is listed as mid-size compact tractor horsepower based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota STV40 is 2,670 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota STV40 is 88.5 lb-ft (120 Nm). Torque helps describe low-speed pulling feel, while horsepower describes power output over engine speed.
Engine specs found
Engine specs found for the Kubota STV40 include Kubota 1.8L, 109.8 cu in (1.8 L) displacement, and 3 cylinders.
Operating weight
The operating weight found for the Kubota STV40 is 2,502 lb (1,135 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 STV40 is 88.2% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota STV40 is 13.9 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
When comparing the Kubota STV40, 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.
