The Kubota B3150 tractor engine horsepower found is 31.5 hp. PTO horsepower found is 23.3 hp.
Engine HP31.5 hp
PTO HP23.3 hp
Power / weight13.4 hp per 1,000 lb
Kubota B3150 Horsepower Specs
Engine horsepower
31.5 hp
PTO horsepower
23.3 hp
Rated engine RPM
2,600 rpm
Engine displacement
91.5 cu in (1.5 L)
Engine cylinders
4 cylinders
Operating weight
2,348 lb (1,065 kg)
PTO-to-engine ratio
74% of engine horsepower
Power-to-weight
13.4 hp per 1,000 lb
Horsepower class
mid-size compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
31.5 hp
Average
32 hp
Low
16 hp
High
60 hp
PTO horsepower benchmark
This model
23.3 hp
Average
25 hp
Low
12 hp
High
50 hp
Operating weight benchmark
This model
2,348 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
13.4 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 B3150 Horsepower FAQ
Engine horsepower
The Kubota B3150 tractor engine horsepower found is 31.5 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota B3150 is 23.3 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota B3150 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 B3150 is 2,600 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Kubota B3150 include 91.5 cu in (1.5 L) displacement and 4 cylinders.
Operating weight
The operating weight found for the Kubota B3150 is 2,348 lb (1,065 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 B3150 is 74% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota B3150 is 13.4 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
For the Kubota B3150, use 31.5 hp as the engine comparison number and 23.3 hp as the implement-power number.
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.
