The Case IH 2120 tractor PTO horsepower is 40 hp | 29.8 kW.
Case IH 2120 Horsepower Specs
| PTO horsepower claimed | 40 hp | 29.8 kW |
|---|
Case IH 2120 Useful Horsepower Calculations
| Engine size per PTO horsepower | 4.6 ci per PTO hp |
|---|---|
| PTO horsepower per liter | 13.3 PTO hp per L |
| Torque per PTO horsepower | 2.9 lb-ft per PTO hp |
| Rated speed per PTO horsepower | 58.8 rpm per PTO hp |
Case IH 2120 Engine Specs
| Displacement | 183.1 ci | 3.0 L |
|---|---|
| Bore and stroke | 4.134×4.547 inches | 105 x 115 mm |
| Compression | 17:1 |
| Rated RPM | 2350 |
| Torque | 115.1 lb-ft | 156.1 Nm |
| Torque RPM | 1200 |
Case IH 2120 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
| Firing order | 1-3-2 |
| Intake valve clearance | Cold: 0.008 inches | 0.203 mm |
| Exhaust valve clearance | Cold: 0.008 inches | 0.203 mm |
Case IH 2120 Horsepower Comparison Charts
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 compact and small utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Case IH 2120 Horsepower FAQ
How much PTO horsepower does the Case IH 2120 have?
The listed PTO output is 40 hp, above the 28 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 40 hp.
How big is the Case IH 2120 engine?
The engine displacement is 183.1 ci, above the 110 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the Case IH 2120 engine stressed for its PTO horsepower?
The engine has about 4.6 cubic inches per PTO hp, using 183.1 ci and 40 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the Case IH 2120 make?
The output density is about 13.3 PTO hp per liter, using 40 PTO hp and 3 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 2120 have?
The listed torque is 115.1 lb-ft, above the 95 lb-ft benchmark average. The 115.1 lb-ft figure is useful for lugging, loader work and heavy PTO load recovery.
Does the Case IH 2120 have good torque for its PTO horsepower?
The torque-to-PTO-power figure is about 2.9 lb-ft per PTO hp, using 115.1 lb-ft and 40 PTO hp. A higher number usually points to a slower, gruntier working feel.
What rpm is the Case IH 2120 rated at?
The rated speed is 2,350 rpm, close to the 2,400 rpm benchmark average. The 2,350 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.



