Compare/Farmall AM-7 vs Farmall MD

Farmall AM-7 vs Farmall MD

Verdict: Farmall AM-7 vs Farmall MD

The Farmall AM-7 and the Farmall MD are both tractors — here is how they stack up on the figures that matter. Farmall AM-7 leads on rated power with 37 hp against 35 hp. Farmall MD is the lighter machine (2,268 kg vs 3,084 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall AM-7 is the newer design (1957 vs 1941). In short: choose the Farmall AM-7 for outright pulling power, or the Farmall MD if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Farmall

Fit score

Best match

Clear

Farmall

Fit score

Best match

Clear

Rated power

37 hp

35 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Farmall (a part of International Harvester)Reference

dieselReference

Diesel 5-speed 2WDJune 1 - 16, 1951Link: Nebraska Tractor Test 460 fileReference

Total built

—

18,253Reference

Steering

—

manualReference

Variants

AW-7

standard-treadReference

—

WD-6

—

standard-frontReference

ID-6

—

industrialReference

—

gasoline engineReference

Engine

Kerosene Drawbar (claimed)

27.4 kWReference

—

Diesel Drawbar (claimed)

33.3 kWReference

—

Kerosene Belt (claimed)

30.6 kWReference

—

Diesel Belt (claimed)

36.4 kWReference

—

Displacement

4.3 LReference

4.1 LReference

Bore/Stroke

102 x 133 mmReference

98 x 133 mmReference

Compression

16.5:1Reference

16.8:1Reference

Rated RPM

1450Reference

Starter volts

12Reference

Fuel tank

—

75.7 LReference

Aux. fuel

—

3.8 LReference

Plows

—

3 (14-inch)Reference

Drawbar (tested)

—

25.0 kWReference

Belt (tested)

—

28.5 kWReference

Firing order

—

1-3-4-2Reference

Coolant capacity

—

28.4 LReference

Belt power (max)

—

28.5 kWReference

Max power

—

25.0 kWReference

Transmission

Type

gearReference

sliding gearReference

Gears

5 forward and 1 reverseReference

PTO & Hydraulics

Pressure

55.2 barReference

Pump flow

26.5 lpmReference

—

Rear Type

IIReference

—

Rear PTO Type

540Reference

PTO (claimed)

—

26.1 kWReference

Dimensions

Wheelbase

224 cmReference

—

Weight

3084 kgReference

2268 kgReference

Front tire

6.00x16Reference

6.50-16Reference

Rear tire

12x38Reference

12-38Reference

Ag front

6.00x16Reference

22.50x4 steelReference

Ag rear

12x38Reference

51x8 steelReference

Length

337 cmReference

322 cmReference

Ground clearance

67 cmReference

—

Rear tread

132 to 254 cmReference

—

Height

—

198 cmReference

Operating weight

—

2268 kgReference

Ballasted weight

—

3433 kgReference

Bar rear axle

—

69 mmReference

AM-7 Serial Numbers

1957

1067 (diesel)Reference

—

1958

1675 (diesel)Reference

—

1959

2901 (diesel)Reference

—

Final

4939 (diesel)Reference

—

Capacities

Diameter

27 cmReference

—

Width

256 cmReference

215 cmReference

RPM

899Reference

—

MD Serial Numbers

1941

—

25371Reference

1942

—

50988Reference

1943

—

60011Reference

1944

—

67424Reference

1945

—

88085Reference

1946

—

105564Reference

1947

—

122823Reference

1948

—

151708Reference

1949

—

180514Reference

1950

—

213579Reference

1951

—

247518Reference

1952

—

290923Reference

Electrical

Ground

—

positiveReference

Batteries

—

2Reference

Battery volts

—

6Reference

Test results

Belt fuel use (max)

—

10.2 l/hourReference

Max pull

—

2291 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.