The Case IH 7120 tractor PTO horsepower is 150 hp | 111.9 kW, and the drawbar horsepower is 135.55 hp | 101.1 kW.
PTO HP150 hp | 111.9 kW
Drawbar HP135.55 hp | 101.1 kW
Displacement504.5 ci | 8.3 L
Case IH 7120 Horsepower Specs
PTO horsepower claimed
150 hp | 111.9 kW
PTO horsepower tested
155.38 hp | 115.9 kW
Drawbar horsepower tested
135.55 hp | 101.1 kW
Case IH 7120 Useful Horsepower Calculations
Drawbar-to-PTO power ratio
90.4% drawbar hp vs PTO hp
Engine size per PTO horsepower
3.4 ci per PTO hp
PTO horsepower per liter
18.1 PTO hp per L
Fuel tank per PTO horsepower
0.5 gal per PTO hp
Rated speed per PTO horsepower
14.7 rpm per PTO hp
Case IH 7120 Engine Specs
Engine type
turbocharged diesel
Displacement
504.5 ci | 8.3 L
Bore and stroke
4.488×5.315 inches | 114 x 135 mm
Compression
17.3:1
Rated RPM
2200
Case IH 7120 Fuel, Cooling, Starting & Service Specs
Fuel capacity
78 gal | 295.2 L
Starter volts
12
Battery volts
12
Case IH 7120 Horsepower Comparison Charts
PTO horsepower comparison
This model
150 hp
Average
175 hp
Low
100 hp
High
320 hp
Drawbar horsepower comparison
This model
135.6 hp
Average
150 hp
Low
85 hp
High
280 hp
Displacement comparison
This model
504.5 ci
Average
520 ci
Low
360 ci
High
750 ci
Rated RPM comparison
This model
2,200 rpm
Average
2,100 rpm
Low
1,600 rpm
High
2,500 rpm
Engine size per PTO HP
This model
3.4 ci/hp
Average
3.3 ci/hp
Low
2 ci/hp
High
5.2 ci/hp
Benchmarks use practical low, average and high ranges for the large ag tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Case IH 7120 Horsepower FAQ
How much PTO horsepower does the Case IH 7120 have?
The listed PTO output is 150 hp, below the 175 hp benchmark average. For real use, size PTO implements below or near 150 hp rather than using a bigger engine-horsepower number.
How much drawbar horsepower does the Case IH 7120 have?
The listed drawbar output is 135.6 hp, close to the 150 hp benchmark average. It gives a realistic pulling-power figure of about 135.6 hp.
Is the Case IH 7120 better judged by PTO hp or drawbar hp?
The drawbar output is about 90.4% of PTO output, comparing 135.6 drawbar hp with 150 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH 7120 engine?
The engine displacement is 504.5 ci, close to the 520 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the Case IH 7120 engine stressed for its PTO horsepower?
The engine has about 3.4 cubic inches per PTO hp, using 504.5 ci and 150 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH 7120 make?
The output density is about 18.1 PTO hp per liter, using 150 PTO hp and 8.3 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
What rpm is the Case IH 7120 rated at?
The rated speed is 2,200 rpm, close to the 2,100 rpm benchmark average. The 2,200 rpm figure is around normal for this class.
Official information note
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.
