The Cub Cadet 580 tractor engine horsepower found is 16 hp. PTO horsepower found is 12.5 hp.
Engine HP16 hp
PTO HP12.5 hp
Power / weight27.4 hp per 1,000 lb
Cub Cadet 580 Horsepower Specs
Engine horsepower
16 hp
PTO horsepower
12.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
40 cu in (0.66 L)
Engine model
Briggs & Stratton 655cc 2-cylinder
Operating weight
585 lb (265 kg)
PTO-to-engine ratio
78.1% of engine horsepower
Power-to-weight
27.4 hp per 1,000 lb
Horsepower class
low-power mower / garden tractor
Horsepower Benchmarks
Engine horsepower benchmark
This model
16 hp
Average
23 hp
Low
12 hp
High
40 hp
PTO horsepower benchmark
This model
12.5 hp
Average
18 hp
Low
8 hp
High
35 hp
Operating weight benchmark
This model
585 lb
Average
1,200 lb
Low
500 lb
High
2,600 lb
Power-to-weight benchmark
This model
27.4 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.
Cub Cadet 580 Horsepower FAQ
Engine horsepower
The Cub Cadet 580 tractor engine horsepower found is 16 hp. Use engine horsepower for comparing engine output, not necessarily implement power at the PTO.
PTO horsepower
The PTO horsepower found for the Cub Cadet 580 is 12.5 hp. PTO horsepower is the more useful figure when sizing PTO-driven implements.
Horsepower class
The Cub Cadet 580 is listed as low-power mower / garden tractor based on the engine horsepower found.
Rated engine RPM
The rated engine speed found for the Cub Cadet 580 is 3,600 rpm. This is the engine speed used for the listed power rating.
Engine specs found
Engine specs found for the Cub Cadet 580 include Briggs & Stratton 655cc 2-cylinder and 40 cu in (0.66 L) displacement.
Operating weight
The operating weight found for the Cub Cadet 580 is 585 lb (265 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 Cub Cadet 580 is 78.1% of engine horsepower based on the figures found.
Power-to-weight
The calculated power-to-weight figure for the Cub Cadet 580 is 27.4 hp per 1,000 lb based on the engine horsepower and operating weight found.
Horsepower planning note
For the Cub Cadet 580, use 16 hp as the engine comparison number and 12.5 hp as the implement-power number.
Official information note
Mistakes do happen. Check the operator manual, service manual and official cubcadet.com website for official horsepower, PTO horsepower, engine RPM, torque and operating-weight specifications before buying implements or servicing the machine.
