Caterpillar D4
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| Production | |
| Manufacturer | Caterpillar |
| Agricultural Crawler tractor | |
| Built in Peoria, Illinois, USA | |
| Variants | |
| D4 6U | 44-inch |
| D4 7U | 60-inch |
| Caterpillar D4 Engine | |
| Caterpillar 5.7L 4-cyl diesel | |
| Fuel tank | 20 gal 75.7 L |
 Engine details ... | |
| Caterpillar D4 Transmission | |
| 5-speed gear | |
 Transmission details ... |
| Caterpillar D4 Power | |
| Engine | 63 hp 47.0 kW |
| Drawbar (claimed) | 50 hp 37.3 kW |
| Belt (claimed) | 57 hp 42.5 kW |
| Drawbar (tested) | 50.18 hp 37.4 kW |
| Belt (tested) | 58.88 hp 43.9 kW |
 Performance test details ... | |
| Mechanical | |
| Drive | crawler |
| Steering | manual clutches |
| Open operator station. | |
| Photos | |
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 Caterpillar D4 photos... | |
| Dimensions & Tracks | |
| Wheelbase | 61.125 inches 155 cm |
| Weight | 11020 to 11425 pounds |
| 13-inch tracks | |
 Full dimensions and tracks ... | |
| D4 Serial Numbers | |
| 1947 | 6U1/7U1 |
| 1948 | 6U1166/7U1798 |
| 1949 | 6U2309/7U4258 |
| 1950 | 6U3783/7U8028 |
| 1951 | 6U5811/7U11888 |
| 1952 | 6U7131/7U16009 |
| 1953 | 6U8256/7U26193 |
| 1954 | 6U9699/7U26194 |
| 1955 | 6U10532/7U30584 |
| 1956 | 6U11305/7U35570 |
| 1957 | 6U11888/7U39597 |
| 1958 | 6U12393/7U42013 |
| 1959 | 6U12504/7U42726 |
| 1958 | 29A1/30A1 |
| 1959 | 30A175 |
FAQ: How to read a serial number table. | |
| Links | |
| Caterpillar D-4: A story on the use of a D-4 by VanNatta Forestry |
| References | |
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| Product Line published in 1953, by Caterpillar | |
| Owner's report: on Caterpillar Farm Tractors published in 1949 | |
| Built for the farm published in 1954, by Caterpillar | |
| Easier, More Profitable Farming published by Caterpillar | |
| Farming on the contour published in 1954, by Caterpillar | |
| D4 published by Caterpillar |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on May 31, 2022 | |
| https://catpublications.com/ - Official operator manuals from Caterpillar. |