The Case IH Farmall 85C tractor engine horsepower is 84 hp | 62.6 kW, PTO horsepower is 70 hp | 52.2 kW, and the drawbar horsepower is 64.4 hp | 48.0 kW.
Case IH Farmall 85C Horsepower Specs
| Engine gross horsepower | 84 hp | 62.6 kW |
|---|---|
| PTO horsepower claimed | 70 hp | 52.2 kW |
| PTO horsepower tested | 75.1 hp | 56.0 kW |
| Drawbar horsepower tested | 64.4 hp | 48.0 kW |
Case IH Farmall 85C Useful Horsepower Calculations
| PTO-to-engine power transfer | 83.3% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 76.7% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 92% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 3.9 ci per PTO hp |
| PTO horsepower per liter | 15.6 PTO hp per L |
| Engine size per engine horsepower | 3.3 ci per engine hp |
| Engine horsepower per liter | 18.7 engine hp per L |
| Rated speed per PTO horsepower | 32.9 rpm per PTO hp |
Case IH Farmall 85C Engine Specs
| Engine model | year |
|---|---|
| Engine type | turbocharged intercooled diesel |
| Displacement | 274 ci | 4.5 L |
| Bore and stroke | 4.094×5.197 inches | 104 x 132 mm |
| Compression | 17.5:1 |
| Rated RPM | 2300 |
Case IH Farmall 85C Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
Case IH Farmall 85C Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Displacement 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 Farmall 85C Horsepower FAQ
How much horsepower does the Case IH Farmall 85C have?
The listed engine output is 84 hp, close to the 80 hp benchmark average. That puts the tractor in a normal working range for this benchmark group, with 84 hp as the main engine number.
How much PTO horsepower does the Case IH Farmall 85C have?
The listed PTO output is 70 hp, close to the 65 hp benchmark average. Use 70 PTO hp as the practical implement-sizing number.
How much drawbar horsepower does the Case IH Farmall 85C have?
The listed drawbar output is 64.4 hp, above the 55 hp benchmark average. That makes the 64.4 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the Case IH Farmall 85C?
The PTO-to-engine transfer works out to 83.3%, from 84 engine hp to 70 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Case IH Farmall 85C for pulling work?
The drawbar-to-engine transfer is about 76.7%, from 84 engine hp to 64.4 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Case IH Farmall 85C better judged by PTO hp or drawbar hp?
The drawbar output is about 92% of PTO output, comparing 64.4 drawbar hp with 70 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH Farmall 85C engine?
The engine displacement is 274 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 Farmall 85C engine stressed for its PTO horsepower?
The engine has about 3.9 cubic inches per PTO hp, using 274 ci and 70 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH Farmall 85C make?
The output density is about 15.6 PTO hp per liter, using 70 PTO hp and 4.5 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
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.
