John Deere 40 tractor
John Deere 40 Specs
Production
| Production | John Deere | 
| Type | Utility tractor | 
| Factory | Dubuque, Iowa, USA | 
| Total built | 18,000 | 
| Original price | $1,500 (1954 ) | 
Variants
| 40C | Tracked tractor | 
| 40H | High-crop | 
| 40S | Standard | 
| 40T | Tricycle | 
| 40V | Special | 
| 40U | Utility | 
| 40W | Two-row utility | 
Power
| Drawbar (claimed) | 16.77 hp | 
| Belt (claimed) | 21.13 hp | 
| Drawbar (tested) | 21.71 hp | 
| Belt (tested) | 24.25 hp | 
Engines
| Engines | John Deere 1.6L 2-cyl all-fuel | 
| Fuel tank | 10.5 gal | 
| Aux. fuel | 0.9 gal | 
Mechanical
| Chassis | 4x2 2WD | 
| Steering | manual | 
| Cab | Open operator station | 
| Transmission | 4-speed gear | 
Tractor hitch
| Rear Type | I | 
Power Take-off (PTO)
| Rear PTO | transmission | 
| Rear RPM | 540 | 
Dimensions & Tires
| Weight | 2900 to 3220 pounds | 
| Front tire | 5.00-15 | 
| Rear tire | 9-24 | 
Attachments
| Attachments | front-end loader | 
Serial Numbers
| 1953 | 60001 (Utility) | 
| 1954 | 60001 (Hi-Crop) | 
| 1955 | 60060 (Hi-Crop) | 
Belt Pulley
| Diameter | 9.1 inches | 
| Width | 6.375 inches | 
| RPM | 1267 | 
| Speed | 3006 ft/min | 
Electrical
| Ground | positive | 
| Battery volts | 6 | 
John Deere 40 engine specs
Engines overview
| Engines overview | 
 | 
Engine Detail (gasoline)
| Engine Detail | John Deere,gasoline,2-cylinder 4-valve,liquid-cooled | 
| Displacement | 100.5 ci | 
| Bore/Stroke | 4.00x4.00 inches | 
| Air cleaner | oil bath | 
| Compression | 6.5:1 | 
| Rated RPM | 1850 | 
| Firing order | 1-2 | 
| Starter volts | 6 | 
| Oil capacity | 5 qts | 
| Coolant capacity | 14 qts | 
Engine Detail (all-fuel)
| Engine Detail | John Deere,all-fuel,2-cylinder 4-valve,liquid-cooled | 
| Displacement | 100.5 ci | 
| Bore/Stroke | 4.00x4.00 inches | 
| Air cleaner | oil bath | 
| Compression | 6.5:1 | 
| Rated RPM | 1850 | 
| Firing order | 1-2 | 
| Starter volts | 6 | 
| Oil capacity | 5 qts | 
| Sparkplug gap | 0.025 inches | 
| Point gap | 0.022 inches | 
| Intake valve clearance | 0.012 inches | 
| Exhaust valve clearance | 0.012 inches | 
John Deere 40 transmission
Transmission
| Manufacturer | John Deere | 
| Type | gear | 
| Gears | 4 forward and 1 reverse | 
| Clutch | Dry disc | 
John Deere 40 dimensions
Tires
| Ag front | 
 | 
| Ag rear | 
 | 
Dimensions
| Length | 130.625 inches | 
| Length (40S) | 114.75 inches | 
| Width | 89.75 inches | 
| Width (40S) | 55.5 inches | 
| Height | 58.75 inches | 
| Height (40S) | 56 inches | 
| Front tread (40S) | 39.125 to 54 inches | 
| Rear tread (40T) | 47.25 to 96 inches | 
| Rear tread (40S) | 38.75 to 54.128 inches | 
Weight
| 40S Operating | 2900 lbs | 
| 40T Operating | 3220 lbs | 
| 40S Ballasted | 4189 lbs | 
| 40T Ballasted | 4553 lbs | 
John Deere 40 attachments
John Deere 30 Loader
| Height (to pin) | 114 inches | 
| Breakout force (lift) | 1400 lbs | 
| Lift to full height (at pin) | 800 lbs | 
| Bucket width | 34 inches | 
 
			   
			  