The Case IH MX135 Maxxum tractor engine horsepower is 135 hp | 100.7 kW, and PTO horsepower is 115 hp | 85.8 kW.
Engine HP135 hp | 100.7 kW
PTO HP115 hp | 85.8 kW
PTO Transfer85.2%
Displacement359 ci | 5.9 L
Case IH MX135 Maxxum Horsepower Specs
Engine horsepower
135 hp | 100.7 kW
PTO horsepower claimed
115 hp | 85.8 kW
Case IH MX135 Maxxum Useful Horsepower Calculations
PTO-to-engine power transfer
85.2% of engine hp reaches the PTO
Engine size per PTO horsepower
3.1 ci per PTO hp
PTO horsepower per liter
19.5 PTO hp per L
Engine size per engine horsepower
2.7 ci per engine hp
Engine horsepower per liter
22.9 engine hp per L
Fuel tank per PTO horsepower
0.6 gal per PTO hp
Rated speed per PTO horsepower
19.1 rpm per PTO hp
Case IH MX135 Maxxum Engine Specs
Engine type
turbocharged diesel
Displacement
359 ci | 5.9 L
Bore and stroke
4.016×4.724 inches | 102 x 120 mm
Compression
17.5:1
Rated RPM
2200
Case IH MX135 Maxxum Fuel, Cooling, Starting & Service Specs
Fuel capacity
72 gal | 272.5 L
Starter volts
12
Battery volts
12
Case IH MX135 Maxxum Horsepower Comparison Charts
Engine horsepower comparison
This model
135 hp
Average
80 hp
Low
45 hp
High
120 hp
PTO horsepower comparison
This model
115 hp
Average
65 hp
Low
35 hp
High
105 hp
Displacement comparison
This model
359 ci
Average
260 ci
Low
150 ci
High
380 ci
Rated RPM comparison
This model
2,200 rpm
Average
2,200 rpm
Low
1,800 rpm
High
2,700 rpm
Engine size per PTO HP
This model
3.1 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 MX135 Maxxum Horsepower FAQ
How much horsepower does the Case IH MX135 Maxxum have?
The listed engine output is 135 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 135 hp.
How much PTO horsepower does the Case IH MX135 Maxxum have?
The listed PTO output is 115 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 115 hp.
How much engine power reaches the PTO on the Case IH MX135 Maxxum?
The PTO-to-engine transfer works out to 85.2%, from 135 engine hp to 115 PTO hp. That is a normal usable range for judging PTO implement fit.
How big is the Case IH MX135 Maxxum engine?
The engine displacement is 359 ci, above the 260 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.
Is the Case IH MX135 Maxxum engine stressed for its PTO horsepower?
The engine has about 3.1 cubic inches per PTO hp, using 359 ci and 115 PTO hp. That is close to the normal benchmark for this category.
How much PTO horsepower per liter does the Case IH MX135 Maxxum make?
The output density is about 19.5 PTO hp per liter, using 115 PTO hp and 5.9 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 MX135 Maxxum rated at?
The rated speed is 2,200 rpm, close to the 2,200 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.
