The Kubota B2311 tractor engine horsepower found is 30.6 hp. PTO horsepower found is 21.5 hp.
Engine HP30.6 hp
PTO HP21.5 hp
Power / weight12.2 hp per 1,000 lb
Kubota B2311 Horsepower Specs
Engine horsepower
30.6 hp
PTO horsepower
21.5 hp
Rated engine RPM
2,600 rpm
Engine torque
54.2 lb-ft (74 Nm)
Engine displacement
91.5 cu in (1.5 L)
Engine cylinders
4 cylinders
Engine
Kubota 1.5L
Operating weight
2,513 lb (1,140 kg)
PTO-to-engine ratio
70.3% of engine horsepower
Power-to-weight
12.2 hp per 1,000 lb
Horsepower class
mid-size compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
30.6 hp
Average
32 hp
Low
16 hp
High
60 hp
PTO horsepower benchmark
This model
21.5 hp
Average
25 hp
Low
12 hp
High
50 hp
Operating weight benchmark
This model
2,513 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
12.2 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 B2311 Horsepower FAQ
Engine horsepower
The Kubota B2311 tractor engine horsepower found is 30.6 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota B2311 is 21.5 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota B2311 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 B2311 is 2,600 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota B2311 is 54.2 lb-ft (74 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 B2311 include Kubota 1.5L, 91.5 cu in (1.5 L) displacement, and 4 cylinders.
Operating weight
The operating weight found for the Kubota B2311 is 2,513 lb (1,140 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 B2311 is 70.3% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota B2311 is 12.2 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
When comparing the Kubota B2311, 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.
