The Case IH 1594 tractor engine horsepower is 97 hp | 72.3 kW, PTO horsepower is 86 hp | 64.1 kW, and the drawbar horsepower is 74 hp | 55.2 kW.
Case IH 1594 Horsepower Specs
| Engine horsepower | 97 hp | 72.3 kW |
|---|---|
| PTO horsepower claimed | 86 hp | 64.1 kW |
| PTO horsepower tested | 85.90 hp | 64.1 kW |
| Drawbar horsepower claimed | 74 hp | 55.2 kW |
| Drawbar horsepower tested | 72.17 hp | 53.8 kW |
Case IH 1594 Useful Horsepower Calculations
| PTO-to-engine power transfer | 88.7% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 76.3% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 86% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 3.8 ci per PTO hp |
| PTO horsepower per liter | 15.9 PTO hp per L |
| Engine size per engine horsepower | 3.4 ci per engine hp |
| Engine horsepower per liter | 18 engine hp per L |
| Torque per PTO horsepower | 2.8 lb-ft per PTO hp |
| Rated speed per PTO horsepower | 26.7 rpm per PTO hp |
Case IH 1594 Engine Specs
| Displacement | 329 ci | 5.4 L |
|---|---|
| Bore and stroke | 3.937×4.500 inches | 100 x 114 mm |
| Compression | 16:1 |
| Rated RPM | 2300 |
| Torque | 242.7 lb-ft | 329.1 Nm |
| Torque RPM | 1425 |
Case IH 1594 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
Case IH 1594 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar 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 1594 Horsepower FAQ
How much horsepower does the Case IH 1594 have?
The listed engine output is 97 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 97 hp.
How much PTO horsepower does the Case IH 1594 have?
The listed PTO output is 86 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 86 hp.
How much drawbar horsepower does the Case IH 1594 have?
The listed drawbar output is 74 hp, above the 55 hp benchmark average. That makes the 74 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the Case IH 1594?
The PTO-to-engine transfer works out to 88.7%, from 97 engine hp to 86 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the Case IH 1594 for pulling work?
The drawbar-to-engine transfer is about 76.3%, from 97 engine hp to 74 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Case IH 1594 better judged by PTO hp or drawbar hp?
The drawbar output is about 86% of PTO output, comparing 74 drawbar hp with 86 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH 1594 engine?
The engine displacement is 329 ci, above the 260 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the Case IH 1594 engine stressed for its PTO horsepower?
The engine has about 3.8 cubic inches per PTO hp, using 329 ci and 86 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH 1594 make?
The output density is about 15.9 PTO hp per liter, using 86 PTO hp and 5.4 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.
