The Kubota B2100 tractor engine horsepower found is 21 hp. PTO horsepower found is also 21.5 hp.
Engine HP21 hp
PTO HP21.5 hp
Power / weight14 hp per 1,000 lb
Kubota B2100 Horsepower Specs
Engine horsepower
21 hp
PTO horsepower
21.5 hp
Rated engine RPM
2,584 rpm
Engine torque
44 lb-ft (60 Nm)
Engine displacement
67.1 cu in (1.1 L)
Engine
Kubota 1.0L
Operating weight
1,500 lb (680 kg)
Power-to-weight
14 hp per 1,000 lb
Horsepower class
subcompact / small compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
21 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
1,500 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
14 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 B2100 Horsepower FAQ
Engine horsepower
The Kubota B2100 tractor engine horsepower found is 21 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota B2100 is 21.5 hp. Confirm this against the operator manual because PTO output is often lower than engine horsepower.
Horsepower class
The Kubota B2100 is listed as subcompact / small compact tractor horsepower based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota B2100 is 2,584 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota B2100 is 44 lb-ft (60 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 B2100 include Kubota 1.0L and 67.1 cu in (1.1 L) displacement.
Operating weight
The operating weight found for the Kubota B2100 is 1,500 lb (680 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 B2100 is 14 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
The Kubota B2100 PTO figure matches the engine horsepower in the data found, so treat the PTO number as a guide until confirmed against the operator manual.
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.
