The Kubota B40 tractor engine horsepower found is 40 hp.
Engine HP40 hp
Power / weight14.3 hp per 1,000 lb
Kubota B40 Horsepower Specs
Engine horsepower
40 hp
Rated engine RPM
2,600 rpm
Engine torque
40.5 lb-ft (55 Nm)
Engine displacement
54.9 cu in (0.9 L)
Engine cylinders
3 cylinders
Engine
Kubota 0.9L
Operating weight
2,800 lb (1,270 kg)
Power-to-weight
14.3 hp per 1,000 lb
Horsepower class
mid-size compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
40 hp
Average
32 hp
Low
16 hp
High
60 hp
Operating weight benchmark
This model
2,800 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
14.3 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 B40 Horsepower FAQ
Engine horsepower
The Kubota B40 tractor engine horsepower found is 40 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
Horsepower class
The Kubota B40 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 B40 is 2,600 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota B40 is 40.5 lb-ft (55 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 B40 include Kubota 0.9L, 54.9 cu in (0.9 L) displacement, and 3 cylinders.
Operating weight
The operating weight found for the Kubota B40 is 2,800 lb (1,270 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 B40 is 14.3 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
When comparing the Kubota B40, start with the listed engine horsepower and then check PTO power if you are sizing implements.
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.
