John Deere

John Deere M

The John Deere M was produced from 1947 to 1952 as a utility tractor replacing the H, L, and LA models. It was the first tractor produced at Deere's Dubuque factory and introduced Deere's Touch-O-Matic hydraulic system. It featured PTO and electric starting as standard. Variants included the MT row-crop, MC crawler, and MI industrial models. The M was powered by a 1.6L 2-cylinder gasoline engine and had a 4-speed unsynchronized transmission.

Power22 hp[B]

Founded1947 - 1952

ModelM

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Technical Specifications

Detailed specifications and technical data for John Deere M

Power

Belt (tested)	20.45 hp (15.2 kW)
Belt (claimed)	20 hp (14.9 kW)
Drawbar (tested)	18.15 hp (13.5 kW)
Drawbar (claimed)	18 hp (13.4 kW)

Engine

Type	John Deere 1.6L 2-cyl gasoline
Details	John Deere gasoline 2-cylinder liquid-cooled. The model M engine was also available as an all-fuel engine. Production numbers are unknown.
Fuel tank	10 gal (37.9 L)
Point gap	0.022 inches (0.559 mm)
Rated RPM	1650
Bore/Stroke	4.00x4.00 inches (102 x 102 mm)
Compression	6:1
Displacement	100.5 ci (1.6 L)
Firing order	1-2
Oil capacity	5 qts (4.7 L)
Sparkplug gap	0.025 inches (0.635 mm)
Starter volts	6
Coolant capacity	14 qts (13.2 L)
Intake valve clearance	0.012 inches Cold (0.305 mm)
Exhaust valve clearance	0.012 inches Cold (0.305 mm)

Variants

M	utility
MC	crawler
MI	industrial
MT	row-crop

Electrical

Ground	positive
Battery volts	6

Hydraulics

Type	Touch-O-Matic
Oil type	10W
Pressure	700 psi (48.3 bar)
Total flow	4.25 gpm (16.1 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Differential mechanical disc brakes
Steering	Manual steering
Operator station	Open operator station

Production

Type	Utility tractor
Notes	The M had been in development for several years during World War II prior to its introduction in 1947. The M replaced the H, L, and LA models. Three additional variants; the MT tricycle, MC crawler model, and MI industrial model were also built. The M was the first tractor to be produced at Deere's new Dubuque factory. It was the first to use Deere's Touch-O-Matic hydraulic system. PTO and electric starting were standard features.
Built in	Dubuque, Iowa, USA
Total built	45,799
Manufacturer	John Deere
Original price	$1,075 in 1952
Years produced	1947 - 1952

Belt Pulley

RPM	1575
Speed	2989 ft/min (911.05 meters/min)
Width	6.4 inches (16 cm)
Diameter	7.25 inches (18 cm)

Transmission

Type	unsynchronized gear
Gears	4 forward and 1 reverse

Tractor hitch

Type	Deere Quik-Tatch

Serial Numbers

1947	10001
1948	13734
1949	25604
1950	35659
1951	43525
1952	50580
Final	55799

Dimensions & Tires

Width	51 inches (129 cm)
Length	110 inches (279 cm)
Rear tire	8-24, 9-24, 10-24
Wheelbase	70 inches (177 cm)
Front tire	4.00x15, 5.00x15
Rear tread	38 to 52 inches (96 to 132 cm)
Front tread	38 to 52 inches (96 to 132 cm)
Height (hood)	56 inches (142 cm)
Ground clearance	21 inches (53 cm)
Height (exhaust)	66 inches (167 cm)
Operating weight	2600 lbs (1179 kg)