| Production | |
| Manufacturer | J.I. Case |
| Standard-tread tractor | |
| Built in Racine, Wisconsin, USA | |
| Total built | 35,493 |
| The stout Case LA was often a candidate for re-powering with a Detroit Diesel 3-71 engine. | |
| J.I. Case LA Engines | |
| 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 |
|   | 29 gal (tractor fuel) 109.8 L |
| Aux. fuel | 2 gal 7.6 L |
| J.I. Case LA Transmission | |
| 4-speed unsynchronized gear | |
| J.I. Case LA Power | |
| Drawbar (claimed) | 51 hp 38.0 kW |
| Belt (claimed) | 58 hp 43.3 kW |
| Plows | 5 |
| Drawbar (tested) | 51.73 hp 38.6 kW |
| Belt (tested) | 59.60 hp 44.4 kW |
| Mechanical | |
| Two-wheel drive | |
| Manual steering | |
| Differential mechanical disc brakes | |
| Open operator station. |
| Photos | |
![]() | |
| Power Take-off (PTO) | |
| Rear PTO Type | 550 |
| Dimensions & Tires | |
| Wheelbase | 82 inches 208 cm |
| Weight | 7515 lbs 3408 kg |
| Front tire | 7.50-18 |
| Rear tire | 15-30 |
| LA Serial Numbers | |
| 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 |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 13 inches 33 cm |
| Width | 8.25 inches 20 cm |
| RPM | 814 |
| Speed | 2770 ft/min 844.30 meters/min |
| References | |
![]() | |
| 4 Great Tractors published in 1945, by J.I. Case |
| Page information | |
![]() | |
| Copyright 2025 TractorData.com® | |
| Email me: Peter@TractorData.com | |
| TractorData is a family-owned small business located in Minnesota. I have been researching tractor history and providing specifications for free since 1999. | |
| Peter Easterlund - owner/author | |
| This machine's data modified on October 24, 2025 |