The Case IH JX55 Maxxima tractor engine horsepower is 58 hp | 43.3 kW, PTO horsepower is 42 hp | 31.3 kW, and the drawbar horsepower is 37.8 hp | 28.2 kW.
Engine HP58 hp | 43.3 kW
PTO HP42 hp | 31.3 kW
Drawbar HP37.8 hp | 28.2 kW
PTO Transfer72.4%
Displacement165.4 ci | 2.7 L
Case IH JX55 Maxxima Horsepower Specs
Engine gross horsepower
58 hp | 43.3 kW
PTO horsepower claimed
42 hp | 31.3 kW
PTO horsepower tested
45.1 hp | 33.6 kW
Drawbar horsepower tested
37.8 hp | 28.2 kW
Case IH JX55 Maxxima Useful Horsepower Calculations
PTO-to-engine power transfer
72.4% of engine hp reaches the PTO
Drawbar-to-engine power transfer
65.2% of engine hp reaches the drawbar
Drawbar-to-PTO power ratio
90% 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
2.9 ci per engine hp
Engine horsepower per liter
21.5 engine hp per L
Rated speed per PTO horsepower
59.5 rpm per PTO hp
Case IH JX55 Maxxima Engine Specs
Engine model
year
Displacement
165.4 ci | 2.7 L
Bore and stroke
3.937×4.528 inches | 100 x 115 mm
Compression
17.0:1
Rated RPM
2500
Case IH JX55 Maxxima Fuel, Cooling, Starting & Service Specs
Starter volts
12
Battery volts
12
Case IH JX55 Maxxima Horsepower Comparison Charts
Engine horsepower comparison
This model
58 hp
Average
80 hp
Low
45 hp
High
120 hp
PTO horsepower comparison
This model
42 hp
Average
65 hp
Low
35 hp
High
105 hp
Drawbar horsepower comparison
This model
37.8 hp
Average
55 hp
Low
30 hp
High
95 hp
Displacement comparison
This model
165.4 ci
Average
260 ci
Low
150 ci
High
380 ci
Rated RPM comparison
This model
2,500 rpm
Average
2,200 rpm
Low
1,800 rpm
High
2,700 rpm
Engine size per PTO HP
This model
3.9 ci/hp
Average
3.5 ci/hp
Low
2.2 ci/hp
High
5.8 ci/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 JX55 Maxxima Horsepower FAQ
How much horsepower does the Case IH JX55 Maxxima have?
The listed engine output is 58 hp, below the 80 hp benchmark average. That is a lower-power result, so the smarter match is lighter implements and jobs that do not demand more than about 58 hp.
How much PTO horsepower does the Case IH JX55 Maxxima have?
The listed PTO output is 42 hp, below the 65 hp benchmark average. For real use, size PTO implements below or near 42 hp rather than using a bigger engine-horsepower number.
How much drawbar horsepower does the Case IH JX55 Maxxima have?
The listed drawbar output is 37.8 hp, below the 55 hp benchmark average. For pulling work, the safer assumption is about 37.8 hp at the drawbar before soil, ballast and tire limits are considered.
How much engine power reaches the PTO on the Case IH JX55 Maxxima?
The PTO-to-engine transfer works out to 72.4%, from 58 engine hp to 42 PTO hp. That is a noticeable drop, so implement sizing should be conservative.
How efficient is the Case IH JX55 Maxxima for pulling work?
The drawbar-to-engine transfer is about 65.2%, from 58 engine hp to 37.8 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the Case IH JX55 Maxxima better judged by PTO hp or drawbar hp?
The drawbar output is about 90% of PTO output, comparing 37.8 drawbar hp with 42 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the Case IH JX55 Maxxima engine?
The engine displacement is 165.4 ci, below the 260 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
Is the Case IH JX55 Maxxima engine stressed for its PTO horsepower?
The engine has about 3.9 cubic inches per PTO hp, using 165.4 ci and 42 PTO hp. That points to a larger-displacement, lower-stress style setup.
How much PTO horsepower per liter does the Case IH JX55 Maxxima make?
The output density is about 15.6 PTO hp per liter, using 42 PTO hp and 2.7 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
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.
