John Deere

John Deere A

The John Deere A was produced from 1934 to 1952 and was John Deere's first true row-crop tractor, replacing the GP. It was built in Waterloo, Iowa, USA, with a total production of 300,000 units. The A model was the row-crop variant and the first Deere tractor to come from the factory with rubber tires. Several variants existed including the AR (standard front axle), AO (orchard), AOS (narrow orchard), AW (adjustable wide-front), AN (single front wheel), AWH (high-crop adjustable wide-front), and ANH (high-crop single front wheel). It featured a John Deere 5.1L 2-cylinder liquid-cooled horizontal engine with 18 hp drawbar power and a 4-speed unsynchronized gear transmission. The tractor had a rear PTO with 540 rpm and weighed 3783 lbs (1715 kg).

Power26 hp[P]

Founded1934 - 1952

ModelA

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Technical Specifications

Detailed specifications and technical data for John Deere A

Power

Plows	2 14-inch
PTO (tested)	23.63 hp (17.6 kW)
Belt (tested)	24.71 hp (18.4 kW)
Belt (claimed)	24 hp (17.9 kW)
Drawbar (tested)	18.72 hp (14.0 kW)
Drawbar (claimed)	18 hp (13.4 kW)

Tires

Ag rear	50x6 steel
Ag front	24x4 steel
Ag rear (alt)	9/10/11.25x36
Ag front (alt)	5.50x16

Engine

Cooling	liquid-cooled horizontal
Aux. fuel	1 gal (3.8 L)
Cylinders	2-cylinder 4-valve
Fuel tank	14 gal (53.0 L)
Fuel type	all fuel
Point gap	0.021 inches (0.533 mm)
Rated RPM	975
Air cleaner	oil bath
Bore/Stroke	5.50x6.50 inches (140 x 165 mm)
Displacement	309 ci (5.1 L)
Firing order	1-2
Manufacturer	John Deere
Oil capacity	9.25 qts (8.8 L)
Starter type	manual (Hand-crank of tractor flywheel)
Engine Detail	John Deere 5.1L 2-cyl all fuel
Sparkplug gap	.030 inches (0.762 mm)
Coolant capacity	38 qts (36.0 L)
Compression ratio	4.45:1
Intake valve clearance	0.020 inches Hot (0.508 mm)
Exhaust valve clearance	0.020 inches Hot (0.508 mm)

Variants

A	Row-crop
AN	Single front wheel
AO	Orchard
AR	Standard front axle
AW	Adjustable wide-front
ANH	High-crop, single-front wheel
AOS	narrow orchard
AWH	High-crop, adjustable wide-front

Dimensions

Width	83 inches (210 cm)
Height	60 inches (152 cm)
Length	124 inches (314 cm)
Weight	3783 lbs (1715 kg)
Width (alt)	86.325 inches (219 cm)
Height (alt)	63.875 inches (162 cm)

Mechanical

Drive	Two-wheel drive
Brakes	Differential mechanical expanding shoe brakes
Steering	Manual steering
Operator station	Open operator station with steel pan seat

Production

Type	Row-Crop tractor
Built in	Waterloo, Iowa, USA
Description	The A was John Deere's first true row-crop tractor, replacing the GP. There were several variants of the A. The A was the row-crop model. The AR was a standard (or fixed) tread model. The AO was an orchard model, with no exhaust stack and shielded fenders. There was also the AI industrial model, the AN with narrow front, the AW wide front, and the high-crop ANH and AWH. The model A was the first Deere tractor to come from the factory with rubber tires.
Total built	300,000
Manufacturer	John Deere
Years produced	1934 - 1952

Transmission

Type	unsynchronized gear
Gears	4 forward and 1 reverse
Clutch	dry disc
Manufacturer	John Deere

Serial Numbers

1934	410000
1935	412866
1936	424025
1937	442151
1938	466787
1939	477000
1940	488000
1941	499000
1942	510239
1943	520004
1944	524423
1945	542700
1946	555334
1947	569610
1948	587349
1949	611921
1950	640246
1951	666307
1952	682602
Final	703384