The Kubota B1181 tractor engine horsepower found is 17.4 hp. PTO horsepower found is also 17.4 hp.
Engine HP17.4 hp
PTO HP17.4 hp
Power / weight12.3 hp per 1,000 lb
Kubota B1181 Horsepower Specs
Engine horsepower
17.4 hp
PTO horsepower
17.4 hp
Rated engine RPM
2,600 rpm
Engine torque
54.2 lb-ft (74 Nm)
Engine displacement
68.5 cu in (1.1 L)
Operating weight
1,411 lb (640 kg)
Power-to-weight
12.3 hp per 1,000 lb
Horsepower class
subcompact / small compact tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
17.4 hp
Average
32 hp
Low
16 hp
High
60 hp
PTO horsepower benchmark
This model
17.4 hp
Average
25 hp
Low
12 hp
High
50 hp
Operating weight benchmark
This model
1,411 lb
Average
2,500 lb
Low
1,300 lb
High
4,500 lb
Power-to-weight benchmark
This model
12.3 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 B1181 Horsepower FAQ
Engine horsepower
The Kubota B1181 tractor engine horsepower found is 17.4 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota B1181 is 17.4 hp. Confirm this against the operator manual because PTO output is often lower than engine horsepower.
Horsepower class
The Kubota B1181 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 B1181 is 2,600 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota B1181 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 B1181 include 68.5 cu in (1.1 L) displacement.
Operating weight
The operating weight found for the Kubota B1181 is 1,411 lb (640 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 B1181 is 12.3 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
For the Kubota B1181, engine horsepower and PTO horsepower are both listed as 17.4 hp; confirm the PTO rating in the manual before buying PTO-driven 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.
