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Years in Production / 1940–1953

J.I. Case

LA

Explore the specifications, hardware, and original references for the J.I. Case LA.

Case Tractor at Gazebo — Ellin Beltz, CC BY-SA 3.0. Resized; converted to WebP. · Ellin Beltz · CC BY-SA 3.0 commons.wikimedia.org source ↗

64hp

Engine estimate · from belt

2WD Only

Drive

1940–1953

Production years

J.I. Case

Manufacturer

LA / 01

At a glance

Production

Standard-tread tractor

Built in Racine, Wisconsin, USA

The stout Case LA was often a candidate for re-powering with a Detroit Diesel 3-71 engine.

Manufacturer
J.I. Case
Total Built
35,493

Pto

Rear Type
550

Serial Numbers

FAQ: How to read a serial number table.

1940
4400001
1941
4500001
1942
4600001
1943
4700001
1944
4800001
1945
4900001
1946
5000001
1947
5100001
1948
5200001
1949
5300001
1950
5400001
1951
5500001
1952
5600001
1953
5700001

Belt Pulley

Diameter
13 inches33 cm
Width
8.25 inches20 cm
Rpm
814
Speed
2770 ft/min844.30 meters/min

Mechanical

Two-wheel drive

Manual steering

Differential mechanical disc brakes

Open operator station.

LA / 02

Under the hood

Engine Detail (Option 1)

J.I. Case

gasoline

4-cylinder

liquid-cooled

Displacement
403.2 ci6.6 L
Bore Stroke
4.625x6.00 inches117 x 152 mm
Air Cleaner
oil bath
Compression Ratio
4.83:1
Rated Rpm
1100
Firing Order
1-3-4-2
Starter Volts
6
Oil Capacity
15 qts14.2 L
Coolant Capacity
61 qts57.7 L
Sparkplug Gap
0.030 inches0.762 mm
Intake Valve Clearance
0.018 inches*Cold0.457 mm
Exhaust Valve Clearance
0.018 inches*Cold0.457 mm
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled

Engine Detail (Option 2)

J.I. Case

tractor fuel

4-cylinder

liquid-cooled

Displacement
403.2 ci6.6 L
Bore Stroke
4.625x6 inches117 x 152 mm
Air Cleaner
oil bath
Compression Ratio
4.09 : 1
Rated Rpm
1100
Firing Order
1-3-2-4
Starter Volts
6
Oil Capacity
15 qts14.2 L
Sparkplug Gap
0.030 inches0.762 mm
Intake Valve Clearance
0.018 inches0.457 mm
Exhaust Valve Clearance
0.018 inches0.457 mm
Cylinders
4
Cooling
liquid-cooled

Engine Detail (Option 3)

J.I. Case

LP gas

4-cylinder

liquid-cooled

Displacement
403.2 ci6.6 L
Bore Stroke
4.625x6.00 inches117 x 152 mm
Air Cleaner
oil bath
Compression Ratio
7.58:1
Rated Rpm
1150
Firing Order
1-3-2-4
Fuel Type
LP gas
Cylinders
4
Cooling
liquid-cooled

Engine Options

J.I. Case 6.6L 4-cyl gasoline

J.I. Case 6.6L 4-cyl tractor fuel

J.I. Case 6.6L 4-cyl LP gas

Fuel Tank
31 gal (gas)117.3 L
Fuel Tank
29 gal (tractor fuel)109.8 L
Aux Fuel
2 gal7.6 L

LA / 03

Gears & controls

Transmission

Transmission Type
unsynchronized gear
Gears
4 forward and 1 reverse
Clutch
mechanical wet disc

LA / 04

Size. Stance. Footprint.

Dimensions

Length
140 in355 cm
Width
67 in170 cm
Height
58.5 in148 cm
Wheelbase
82 in208 cm

Dimensions And Tires

Wheelbase
82 inches208 cm
Weight
7515 lbs3408 kg
Front Tire
7.50-18
Rear Tire
15-30

Tires And Tracks

Front Ag
7.50-18
Front Ag
30x6 (steel)
Rear Ag
15-30
Rear Ag
14-30
Rear Ag
48x12 (steel)

LA / 05

Tractor Photos

Case Tractor at Gazebo — Ellin Beltz, CC BY-SA 3.0. Resized; converted to WebP. · Ellin Beltz · CC BY-SA 3.0 commons.wikimedia.org source ↗

See it in action

Videos

Watch J.I. Case LA videos from their original YouTube creators.

LA / 07

Tests (NTTL)

Nebraska Tractor Test 480

Gasoline 4-speed 2WDAugust 15 - 28, 1952

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
480
Belt Power Max
58.53 hp43.6 kW
Belt Fuel Use Max
5.8 gal/hour22.0 l/hour
Max Power
51.68 hp38.5 kW
Max Pull
6,659 lbs3020 kg

Nebraska Tractor Test 481

Tractor fuel 4-speed 2WDAugust 18 - 29, 1952

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
481
Belt Power Max
48.86 hp36.4 kW
Belt Fuel Use Max
5.0 gal/hour18.9 l/hour
Max Power
44.51 hp33.2 kW
Max Pull
6,444 lbs2922 kg

Nebraska Tractor Test 482

LP gas 4-speed 2WDAugust 21 - September 6, 1952

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
482
Belt Power Max
59.60 hp44.4 kW
Belt Fuel Use Max
6.7 gal/hour25.4 l/hour
Max Power
51.73 hp38.6 kW
Max Pull
6,874 lbs3118 kg

J.I. Case LA · photo 1 / 1

Case Tractor at Gazebo

Case Tractor at Gazebo — Ellin Beltz, CC BY-SA 3.0. Resized; converted to WebP. · Ellin Beltz · CC BY-SA 3.0 commons.wikimedia.org source ↗