John Deere 40: all source data

All 90 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.

Overview

Production
ManufacturerJohn Deere
(no label)Utility tractor
(no label)Built in Dubuque, Iowa, USA
Total built18,000
(no label)Original price was $1,500 in 1954
(no label)The John Deere model 40 was the replacement for the M. The 40 variants included the 40S standard, utility, high-crop, 2-row utility, and a crawler model (the 40C). The 40C and the utility were used as industrial models, although there was no official John Deere designation for 40 industrial models.
Engine
(no label)John Deere 1.6L 2-cyl gasoline
(no label)John Deere 1.6L 2-cyl all-fuel
Fuel tank10.5 gal | 39.7 L
Aux. fuel0.9 gal | 3.4 L
Transmission
(no label)4-speed gear
Power
Drawbar (claimed)16.77 hp | 12.5 kW
Belt (claimed)21.13 hp | 15.8 kW
Drawbar (tested)21.71 hp | 16.2 kW
Belt (tested)24.25 hp | 18.1 kW
Mechanical
(no label)Two-wheel drive
(no label)Manual steering
(no label)Open operator station.
Hitch
Rear TypeI
Pto
Rear PTOtransmission
Rear PTO Type540
Dimensions
Weight2900 to 3220 pounds
Front tire5.00-15
Rear tire9-24
Serial location
(no label)Serial number plate on the left side of the ttransmission housing.
Belt pulley
Diameter9.1 inches | 23 cm
Width6.375 inches | 16 cm
RPM1267
Speed3006 ft/min | 916.23 meters/min
Electrical
Groundpositive
Battery volts6

Engine

Engine options
(no label)John Deere 1.6L 2-cyl gasoline
(no label)John Deere 1.6L 2-cyl all-fuel
Engine detail
(no label)John Deere
(no label)gasoline
(no label)2-cylinder 4-valve
(no label)liquid-cooled
Displacement100.5 ci | 1.6 L
Bore/Stroke4.00x4.00 inches | 102 x 102 mm
Air cleaneroil bath
Compression6.5:1
Rated RPM1850
Firing order1-2
Starter volts6
Oil capacity5 qts | 4.7 L
Coolant capacity (Coolant)14 qts | 13.2 L
(no label)John Deere
(no label)all-fuel
(no label)2-cylinder 4-valve
(no label)liquid-cooled
Displacement100.5 ci | 1.6 L
Bore/Stroke4.00x4.00 inches | 102 x 102 mm
Air cleaneroil bath
Compression6.5:1
Rated RPM1850
Firing order1-2
Starter volts6
Oil capacity5 qts | 4.7 L
Sparkplug gap0.025 inches | 0.635 mm
Point gap0.022 inches | 0.559 mm
Intake valve clearance0.012 inches (cold) | 0.305 mm
Exhaust valve clearance0.012 inches (cold) | 0.305 mm

Transmission

Transmission
ManufacturerJohn Deere
Typegear
Gears4 forward and 1 reverse
Clutchdry disc

Dimensions

Tires
Ag front5.00-15
Ag front6.00x16
Ag rear9-24 (40S)
Ag rear10-24 (40S/U)
Ag rear11-24 (40S/U)
Ag rear11-26 (40U)
Ag rear13-26 (40U)
Ag rear9-34 (40W/T/V)
Ag rear10-34 (40W/V/T)
Ag rear10-38 (40H)
Ag rear11-38 (40H)
Dimensions
Length130.625 inches | 331 cm
Length114.75 inches (40S) | 291 cm
Width89.75 inches | 227 cm
Width55.5 inches (40S) | 140 cm
Height58.75 inches | 149 cm
Height56 inches (40S) | 142 cm
Front tread39.125 to 54 inches (40S) | 99 to 137 cm
Rear tread47.25 to 96 inches (40T) | 120 to 243 cm
Rear tread38.75 to 54.128 inches (40S) | 98 to 137 cm
Weight
40S Operating (40S)2900 lbs | 1315 kg
40T Operating (40T)3220 lbs | 1460 kg
40S Ballasted (40S)4189 lbs | 1900 kg
40T Ballasted (40T)4553 lbs | 2065 kg