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 BTractor	Oliver 77 Row-CropTractor
Tractor Type	Row-Crop Tractor	Row-Crop Tractor
Weight	1950.0 kg	2040.0 kg
Transmission Type	Unsynchronized gear	Unsynchronized gear with dry disc clutch
Length	340.0 cm	353.0 cm
Years Made	1938-1952	1948-1954
Engine Model	John Deere	Waukesha-Oliver
Engine Type	4-stroke, liquid-cooled, inline	4-stroke, liquid-cooled, inline
Fuel Type	All-fuel	LP-gas
Cylinders	2	6
Displacement	3120 cc	3179 cc
Bore	11.91 cm	8.41 cm
Stroke	14.00 cm	9.50 cm
Rear PTO Type	Transmission	—
Rear PTO Speed	540 RPM	540 RPM
Compression Ratio	4.71:1	6.75:1
Battery	6 V	—
Starter	Electric	Electric
Height	151.0 cm	190.0 cm
Fuel Tank Capacity	45.4 l	62.5 l
Coolant Capacity	34.1 l	17.0 l
Transmission Oil Capacity	17.0 l	—
Transmission Model	John Deere	—
Gears	6 forward and 1 reverse	6 forward and 2 reverse
Chassis	4×2 2WD	4×2 2WD
Max. Travel Speed	4.0 km/h	7.2 km/h
Brakes	Differential mechanical expanding shoe	Differential mechanical drum
Cabin Type	Open operator station	Open operator station
Hitch Type	Power Lift	—
Steering Type	Manual	Manual
Front Tires	Ag: 5.50×16	Ag: 5.50-16
Rear Tires	Ag: 10.00×38	Ag: 10-38, 11-38, 12-38
Hydraulic Type	Powr-Trol	—
Wheelbase	—	230.0 cm
Ground Clearance	—	63.0 cm
Oil Capacity	—	7.6 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