The Case IH 785 tractor engine horsepower is 77 hp | 57.4 kW, and PTO horsepower is 69 hp | 51.5 kW.
Case IH 785 Horsepower Specs
| Engine horsepower | 77 hp | 57.4 kW |
|---|---|
| PTO horsepower claimed | 69 hp | 51.5 kW |
Case IH 785 Useful Horsepower Calculations
| PTO-to-engine power transfer | 89.6% of engine hp reaches the PTO |
|---|---|
| Engine size per PTO horsepower | 3.6 ci per PTO hp |
| PTO horsepower per liter | 17.2 PTO hp per L |
| Engine size per engine horsepower | 3.2 ci per engine hp |
| Engine horsepower per liter | 19.2 engine hp per L |
| Torque per PTO horsepower | 2.7 lb-ft per PTO hp |
| Rated speed per PTO horsepower | 33.3 rpm per PTO hp |
Case IH 785 Engine Specs
| Displacement | 246.4 ci | 4.0 L |
|---|---|
| Bore and stroke | 3.937×5.059 inches | 100 x 128 mm |
| Rated RPM | 2300 |
| Torque | 188.8 lb-ft | 256.0 Nm |
| Torque RPM | 1600 |
Case IH 785 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Displacement comparison
Torque comparison
Rated RPM comparison
Engine size per PTO HP
Benchmarks use practical low, average and high ranges for the utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Case IH 785 Horsepower FAQ
How much horsepower does the Case IH 785 have?
The listed engine output is 77 hp, close to the 80 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 77 hp as the main engine number.
How much PTO horsepower does the Case IH 785 have?
The listed PTO output is 69 hp, close to the 65 hp benchmark average. Use 69 PTO hp as the practical implement-sizing number.
How much engine power reaches the PTO on the Case IH 785?
The PTO-to-engine transfer works out to 89.6%, from 77 engine hp to 69 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH 785 engine?
The engine displacement is 246.4 ci, close to the 260 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the Case IH 785 engine stressed for its PTO horsepower?
The engine has about 3.6 cubic inches per PTO hp, using 246.4 ci and 69 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH 785 make?
The output density is about 17.2 PTO hp per liter, using 69 PTO hp and 4 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
How much torque does the Case IH 785 have?
The listed torque is 188.8 lb-ft, below the 240 lb-ft benchmark average. With 188.8 lb-ft listed, gearing matters more when the tractor is loaded hard.
Does the Case IH 785 have good torque for its PTO horsepower?
The torque-to-PTO-power figure is about 2.7 lb-ft per PTO hp, using 188.8 lb-ft and 69 PTO hp. A higher number usually points to a slower, gruntier working feel.
What rpm is the Case IH 785 rated at?
The rated speed is 2,300 rpm, close to the 2,200 rpm benchmark average. The 2,300 rpm figure is around normal for this class.
Horsepower and engine specs can vary by year, market, engine option, fuel system, test standard and tractor configuration. Check the operator manual, spec plate, parts book and official caseih.com website before buying parts, sizing implements or making repair decisions.
