The Kubota M5640SU tractor engine horsepower found is 56 hp. PTO horsepower found is 50 hp.
Engine HP56 hp
PTO HP50 hp
Power / weight14.5 hp per 1,000 lb
Kubota M5640SU Horsepower Specs
Engine horsepower
56 hp
PTO horsepower
50 hp
Rated engine RPM
2,700 rpm
Engine displacement
146.5 cu in (2.4 L)
Engine cylinders
4 cylinders
Engine
2.4L
Operating weight
3,858 lb (1,750 kg)
PTO-to-engine ratio
89.3% of engine horsepower
Power-to-weight
14.5 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
3,858 lb
Average
8,000 lb
Low
4,500 lb
High
15,000 lb
Power-to-weight benchmark
This model
14.5 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 M5640SU Horsepower FAQ
Engine horsepower
The Kubota M5640SU 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 M5640SU is 50 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Kubota M5640SU is listed as small utility tractor horsepower based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota M5640SU is 2,700 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Kubota M5640SU include 2.4L, 146.5 cu in (2.4 L) displacement, and 4 cylinders.
Operating weight
The operating weight found for the Kubota M5640SU is 3,858 lb (1,750 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 M5640SU is 89.3% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Kubota M5640SU is 14.5 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
The practical split on the Kubota M5640SU is engine power at 56 hp and PTO power at 50 hp.
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.
