The Kubota M5660SU tractor engine horsepower found is 56 hp. PTO horsepower found is 50 hp.
Engine HP56 hp
PTO HP50 hp
Power / weight12.8 hp per 1,000 lb
Kubota M5660SU Horsepower Specs
Engine horsepower
56 hp
PTO horsepower
50 hp
Rated engine RPM
2,600 rpm
Engine torque
154 lb-ft (209 Nm)
Engine displacement
146.5 cu in (2.4 L)
Engine cylinders
4 cylinders
Engine
Kubota 2.4L
Operating weight
4,387 lb (1,990 kg)
PTO-to-engine ratio
89.3% of engine horsepower
Power-to-weight
12.8 hp per 1,000 lb
Horsepower class
small utility tractor horsepower
Horsepower Benchmarks
Engine horsepower benchmark
This model
56 hp
Average
85 hp
Low
45 hp
High
150 hp
PTO horsepower benchmark
This model
50 hp
Average
70 hp
Low
38 hp
High
125 hp
Operating weight benchmark
This model
4,387 lb
Average
8,000 lb
Low
4,500 lb
High
15,000 lb
Power-to-weight benchmark
This model
12.8 hp/1k lb
Average
11 hp/1k lb
Low
7 hp/1k lb
High
18 hp/1k lb
Benchmarks are general reference ranges for utility tractors.
Kubota M5660SU Horsepower FAQ
Engine horsepower
The Kubota M5660SU tractor engine horsepower found is 56 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota M5660SU is 50 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota M5660SU is listed as small utility tractor horsepower based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota M5660SU is 2,600 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota M5660SU is 154 lb-ft (209 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 M5660SU include Kubota 2.4L, 146.5 cu in (2.4 L) displacement, and 4 cylinders.
Operating weight
The operating weight found for the Kubota M5660SU is 4,387 lb (1,990 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 M5660SU is 89.3% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota M5660SU is 12.8 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
For the Kubota M5660SU, use 56 hp as the engine comparison number and 50 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.
