SPECS / COMPARISON

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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

Feature	John Deere ATractor	David Brown 50TDTractor
Tractor Type	Row-Crop Tractor	Agricultural Crawler Tractor
Weight	2085.0 kg	2025.0 kg
Transmission Type	Unsynchronized gear with dry disc clutch	Gear type with dry disc clutch
Length	340.0 cm	307.0 cm
Years Made	1939-1947	1953-1958
Engine Model	John Deere	David Brown
Engine Type	4-stroke, liquid-cooled, inline	4-stroke, liquid-cooled, inline
Fuel Type	All-fuel / Gasoline	Diesel
Cylinders	2	6
Horsepower (Drawbar)	34.0 HP (25.4 kW) at 975 rpm	—
Displacement	5260 cc	4065 cc
Bore	14.00 cm	9.19 cm
Stroke	17.09 cm	10.21 cm
Rear PTO Type	Transmission	—
Rear PTO Speed	540 RPM	540 RPM
Compression Ratio	All-fuel: 4.45:1Gasoline: 6.50:1	15.9:1
Battery	6 V	12 V, 108Ah
Starter	Manual or electric	Electric
Height	162.0 cm	142.0 cm
Fuel Tank Capacity	68.1 l	66.0 l
Oil Capacity	10.4 l	13.6 l
Coolant Capacity	36.0 l	18.0 l
Transmission Model	John Deere	David Brown
Gears	6 forward and 1 reverse	6 forward and 2 reverse
Chassis	4×2 2WD	Crawler
Max. Travel Speed	5.6 km/h	4.2 km/h
Brakes	Differential mechanical expanding shoe	—
Cabin Type	Open operator station	Open operator station
Steering Type	Manual	Controlled differential
Front Tires	Ag: 24×4 steelAg: 5.50×16	—
Rear Tires	Ag: 50×6 steelAg: 9/10/11.00×38	—
Horsepower	—	37.3 kW
Rated RPM	—	1800 RPM
Track Size	—	14-inch tracks
Optional Track Size	—	16-inch tracks, 18-inch tracks
Transmission Oil Capacity	—	54.0 l
Source	heavyequipments.net archive (imported 2026-10)	heavyequipments.net archive (imported 2026-10)

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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051