The Kubota F3680 tractor engine horsepower found is 36 hp. PTO horsepower found is also 36 hp.
Engine HP36 hp
PTO HP36 hp
Power / weight22.8 hp per 1,000 lb
Kubota F3680 Horsepower Specs
Engine horsepower
36 hp
PTO horsepower
36 hp
Rated engine RPM
3,200 rpm
Engine torque
70 lb-ft (95 Nm)
Engine displacement
91.5 cu in (1.5 L)
Engine cylinders
4 cylinders
Engine model
Kubota V1505
Operating weight
1,581 lb (717 kg)
Power-to-weight
22.8 hp per 1,000 lb
Horsepower class
high-power mower / garden tractor
Horsepower Benchmarks
Engine horsepower benchmark
This model
36 hp
Average
23 hp
Low
12 hp
High
40 hp
PTO horsepower benchmark
This model
36 hp
Average
18 hp
Low
8 hp
High
35 hp
Operating weight benchmark
This model
1,581 lb
Average
1,200 lb
Low
500 lb
High
2,600 lb
Power-to-weight benchmark
This model
22.8 hp/1k lb
Average
20 hp/1k lb
Low
12 hp/1k lb
High
35 hp/1k lb
Benchmarks are general reference ranges for lawn and garden tractors and mowers.
Kubota F3680 Horsepower FAQ
Engine horsepower
The Kubota F3680 tractor engine horsepower found is 36 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Kubota F3680 is 36 hp. Confirm this against the operator manual because PTO output is often lower than engine horsepower.
Horsepower class
The Kubota F3680 is listed as high-power mower / garden tractor based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Kubota F3680 is 3,200 rpm. This is the engine speed used for the listed power rating.
Engine torque
The engine torque found for the Kubota F3680 is 70 lb-ft (95 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 F3680 include Kubota V1505, 91.5 cu in (1.5 L) displacement, and 4 cylinders.
Operating weight
The operating weight found for the Kubota F3680 is 1,581 lb (717 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 F3680 is 22.8 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
The Kubota F3680 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.
