Case IH Farmall 70A Horsepower & PTO HP

Quick answer:

The Case IH Farmall 70A tractor engine horsepower is 70 hp | 52.2 kW, and PTO horsepower is 62 hp | 46.2 kW.

Engine HP70 hp | 52.2 kW
PTO HP62 hp | 46.2 kW
PTO Transfer88.6%
Displacement135.9 ci | 2.2 L

Case IH Farmall 70A Horsepower Specs

Engine gross horsepower 70 hp | 52.2 kW
PTO horsepower claimed 62 hp | 46.2 kW
PTO horsepower tested 63.99 hp | 47.7 kW

Case IH Farmall 70A Useful Horsepower Calculations

PTO-to-engine power transfer 88.6% of engine hp reaches the PTO
Engine size per PTO horsepower 2.2 ci per PTO hp
PTO horsepower per liter 28.2 PTO hp per L
Engine size per engine horsepower 1.9 ci per engine hp
Engine horsepower per liter 31.8 engine hp per L
Rated speed per PTO horsepower 41.9 rpm per PTO hp

Case IH Farmall 70A Engine Specs

Engine type turbocharged aftercooled diesel
Displacement 135.9 ci | 2.2 L
Bore and stroke 3.70×4.21 inches | 94 x 107 mm
Rated RPM 2600

Case IH Farmall 70A Fuel, Cooling, Starting & Service Specs

Starter volts 12
Battery volts 12

Case IH Farmall 70A Horsepower Comparison Charts

Engine horsepower comparison

This model

70 hp

Average

35 hp

Low

15 hp

High

60 hp

PTO horsepower comparison

This model

62 hp

Average

28 hp

Low

12 hp

High

50 hp

Displacement comparison

This model

135.9 ci

Average

110 ci

Low

50 ci

High

180 ci

Rated RPM comparison

This model

2,600 rpm

Average

2,400 rpm

Low

1,800 rpm

High

3,000 rpm

Engine size per PTO HP

This model

2.2 ci/hp

Average

3.1 ci/hp

Low

1.8 ci/hp

High

5 ci/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 Farmall 70A Horsepower FAQ

How much horsepower does the Case IH Farmall 70A have?

The listed engine output is 70 hp, above the 35 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 70 hp.

How much PTO horsepower does the Case IH Farmall 70A have?

The listed PTO output is 62 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 62 hp.

How much engine power reaches the PTO on the Case IH Farmall 70A?

The PTO-to-engine transfer works out to 88.6%, from 70 engine hp to 62 PTO hp. That is a normal usable range for judging PTO implement fit.

How big is the Case IH Farmall 70A engine?

The engine displacement is 135.9 ci, above the 110 ci benchmark average. Bigger displacement can help low-rpm pull and load-holding feel.

Is the Case IH Farmall 70A engine stressed for its PTO horsepower?

The engine has about 2.2 cubic inches per PTO hp, using 135.9 ci and 62 PTO hp. That is a smaller-displacement, higher-output style result.

How much PTO horsepower per liter does the Case IH Farmall 70A make?

The output density is about 28.2 PTO hp per liter, using 62 PTO hp and 2.2 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 Farmall 70A rated at?

The rated speed is 2,600 rpm, close to the 2,400 rpm benchmark average. The 2,600 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.