| Production | |
| Manufacturer | David Brown |
| Agricultural Crawler tractor | |
| Built in Meltham Mills, Huddersfield, England | |
| David Brown 40TD Engine | |
| David Brown 2.7L 4-cyl diesel | |
| Fuel tank | 69.7 gal 263.8 L |
| David Brown 40TD Transmission | |
| 6-speed gear | |
| David Brown 40TD Power | |
| Drawbar (claimed) | 33 hp 24.6 kW |
| PTO (claimed) | 39 hp 29.1 kW |
| Mechanical | |
| Drive | crawler |
| Open operator station. | |
| Photos | |
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| Power Take-off (PTO) | |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 580@1800 |
|   | 1110@1800 |
|   | 1240@1800 |
|   | 2360@1800 |
| Dimensions & Tracks | |
| Weight | 8050 to 8450 pounds |
| 13-inch tracks | |
| References | |
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| 40TD published in 1962, by David Brown |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on August 28, 2022 |