The Case IH Farmall 100C tractor engine horsepower is 99 hp | 73.8 kW, PTO horsepower is 85 hp | 63.4 kW, and the drawbar horsepower is 66 hp | 49.2 kW.
Case IH Farmall 100C Horsepower Specs
| Engine gross horsepower | 99 hp | 73.8 kW |
|---|---|
| PTO horsepower claimed | 85 hp | 63.4 kW |
| PTO horsepower tested | 85.8 hp | 64.0 kW |
| Drawbar horsepower tested | 66 hp | 49.2 kW |
Case IH Farmall 100C Useful Horsepower Calculations
| PTO-to-engine power transfer | 85.9% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 66.7% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 77.6% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 2.4 ci per PTO hp |
| PTO horsepower per liter | 25 PTO hp per L |
| Engine size per engine horsepower | 2.1 ci per engine hp |
| Engine horsepower per liter | 29.1 engine hp per L |
Case IH Farmall 100C Engine Specs
| Engine model | year |
|---|---|
| Engine type | wastegate turbocharged and aftercooled diesel |
| Displacement | 206.7 ci | 3.4 L |
| Bore and stroke | 3.90×4.33 inches | 99 x 110 mm |
Case IH Farmall 100C Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
Case IH Farmall 100C Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Displacement 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 100C Horsepower FAQ
How much horsepower does the Case IH Farmall 100C have?
The listed engine output is 99 hp, above the 80 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 99 hp.
How much PTO horsepower does the Case IH Farmall 100C have?
The listed PTO output is 85 hp, above the 65 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 85 hp.
How much drawbar horsepower does the Case IH Farmall 100C have?
The listed drawbar output is 66 hp, above the 55 hp benchmark average. That makes the 66 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 100C?
The PTO-to-engine transfer works out to 85.9%, from 99 engine hp to 85 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Case IH Farmall 100C for pulling work?
The drawbar-to-engine transfer is about 66.7%, from 99 engine hp to 66 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Case IH Farmall 100C better judged by PTO hp or drawbar hp?
The drawbar output is about 77.6% of PTO output, comparing 66 drawbar hp with 85 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH Farmall 100C engine?
The engine displacement is 206.7 ci, below the 260 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
Is the Case IH Farmall 100C engine stressed for its PTO horsepower?
The engine has about 2.4 cubic inches per PTO hp, using 206.7 ci and 85 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the Case IH Farmall 100C make?
The output density is about 25 PTO hp per liter, using 85 PTO hp and 3.4 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.
