John Deere LA Specs ( 1941-1946 )
Overview
The John Deere Model LA is a 1.3L two-cylinder gasoline utility tractor produced from 1941 to 1946 as a larger version of the Model L. It features a 3-speed unsynchronized gear transmission and was tested at 14.34 belt horsepower and 13.10 drawbar horsepower in Nebraska Tractor Test 373. The machine is configured with an open operator station, a 61-inch wheelbase, and a 6-volt positive ground electrical system.
Ideal Applications
Tested Performance Data:
Nebraska Tractor Test 373 recorded a maximum drawbar pull of 1,936 lbs and a maximum belt power of 14.34 hp at a rated engine speed of 1850 RPM.
Engine and Transmission Configuration:
The unit is powered by a 77 cubic inch liquid-cooled 2-cylinder engine and utilizes a three-speed unsynchronized gear transmission with a mechanical dry disc clutch.
Physical Dimensions and Tread:
The tractor has a shipping weight of 2,200 lbs and features adjustable rear tread widths in increments of 38, 43, 48, and 54 inches.
Production
| Description | Utility tractor / Built in Moline, Illinois, USA / The John Deere model LA was a larger version of the model L. The LA featured a larger engine with increased RPMs. |
|---|---|
| Manufacturer | John Deere |
Engine
| Engine type | John Deere 1.3L 2-cyl gasoline |
|---|---|
| Fuel tank | 8 gal (30.3 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 3.50x4.00 inches (89 x 102 mm) |
| Coolant capacity | 10 qts (9.5 L) |
| Description | John Deere / gasoline / 2-cylinder / liquid-cooled |
| Displacement | 77 ci (1.3 L) |
| Firing order | 1-2 |
| Oil capacity | 3 qts (2.8 L) |
| Rated RPM | 1850 |
| Starter volts | 6 |
| Belt (claimed) | 12.93 hp (9.6 kW) |
| Belt (tested) | 14.34 hp (10.7 kW) |
| Drawbar (claimed) | 10.46 hp (7.8 kW) |
| Drawbar (tested) | 13.10 hp (9.8 kW) |
| Plows | 1 (16-inch) |
Transmission
| Clutch | mechanical dry disc |
|---|---|
| Gears | 3 forward and 1 reverse |
| Transmission type | 3-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station with steel pan seat. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
PTO
| Rear PTO | transmission ((Optional) |
|---|---|
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 6 |
|---|---|
| Ground | positive |
Dimensions & Tires
| Ground clearance | 20.5 inches (52 cm) |
|---|---|
| Height | 60 inches (152 cm) |
| Length | 93 inches (236 cm) |
| Rear tread | 38/43/48/54 inches (96/109/121/137 cm) |
| Shipping weight | 2200 lbs (997 kg) |
| Wheelbase | 61 inches (154 cm) |
| Width | 47 inches (119 cm) |
| Front tire | 5.00-15 |
| Rear tire | 8.00-24 |
| Weight | 2200 lbs (997 kg) |
| Wheelbase | 61 inches (154 cm) |
| Ag front | 5.00-15 |
| Ag rear | 8.00-24 |
Belt Pulley
| Diameter | 6.75 inches (17 cm) |
|---|---|
| RPM | 1770 |
| Speed | 3115 ft/min (949.45 meters/min) |
| Width | 4.5 inches (11 cm) |
LA Serial Number Location
| Description | Back of rear axle on right side. |
|---|
LA Serial Numbers
| 1941 | 1001 |
|---|---|
| 1942 | 5361 |
| 1943 | 6029 |
| 1944 | 6159 |
| 1945 | 9732 |
| 1946 | 11529 |
| Description | FAQ: How to read a serial number table. |
| Final | 13475 |
Nebraska Tractor Test 373
| Belt power (max) | 14.34 hp (10.7 kW) |
|---|---|
| Description | Gasoline 3-speed 2WDJune 20 - 28, 1941Link: Nebraska Tractor Test 373 file / Drawbar performance / Gear 1 used for pull test. |
| Max power | 13.10 hp (9.8 kW) |
| Max pull | 1,936 lbs (878 kg) |
References
| Description | The John Deere Styled "Letter" Series by J.R. Hobbs / Tractors 1918-1976 published by John Deere* / General Catalog published in 1940, by John Deere / Models "L" and "LA" General-Purpose Tractors published in 1941, by John Deere / The New, More Powerful Model "LA" published in 1940, by John Deere / Instructions for Model LA Tractor (DIR-207) / *Publication contains known errors. |
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