John Deere M Specs ( 1947-1952 )
Production
| Description | Utility tractor / Built in Dubuque, Iowa, USA / Original price was $1,075 in 1952 |
|---|---|
| Manufacturer | John Deere |
| Total built | 45,799 |
Engine
| Description | Image courtesy of John |
|---|---|
| Engine type | John Deere 1.6L 2-cyl gasoline |
| Fuel tank | 10 gal (37.9 L) |
| Bore/Stroke | 4.00x4.00 inches (102 x 102 mm) |
| Compression | 6:1 |
| Coolant capacity | 14 qts (13.2 L) |
| Description | John Deere / gasoline / 2-cylinder / liquid-cooled / The model M engine was also available as an all-fuel engine. Production numbers are unknown. |
| Displacement | 100.5 ci (1.6 L) |
| Exhaust valve clearance | 0.012 inches*Cold (0.305 mm) |
| Firing order | 1-2 |
| Intake valve clearance | 0.012 inches*Cold (0.305 mm) |
| Oil capacity | 5 qts (4.7 L) |
| Point gap | 0.022 inches (0.559 mm) |
| Rated RPM | 1650 |
| Sparkplug gap | 0.025 inches (0.635 mm) |
| Starter volts | 6 |
| Belt (claimed) | 20 hp (14.9 kW) |
| Belt (tested) | 20.45 hp (15.2 kW) |
| Drawbar (claimed) | 18 hp (13.4 kW) |
| Drawbar (tested) | 18.15 hp (13.5 kW) |
Transmission
| Gears | 4 forward and 1 reverse |
|---|---|
| Transmission type | 4-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Differential mechanical disc brakes |
| Drive type | Two-wheel drive |
Hydraulics
| Oil type | 10W |
|---|---|
| Pressure | 700 psi (48.3 bar) |
| Total flow | 4.25 gpm (16.1 lpm) |
| Type | Touch-O-Matic |
Hitch
| Type | Deere Quik-Tatch |
|---|
PTO
| Rear PTO | transmission |
|---|---|
| Rear PTO Type | 550 |
Electrical
| Battery volts | 6 |
|---|---|
| Ground | positive |
Dimensions & Tires
| Front tread | 38 to 52 inches (96 to 132 cm) |
|---|---|
| Ground clearance | 21 inches (53 cm) |
| Height (exhaust) | 66 inches (167 cm) |
| Height (hood) | 56 inches (142 cm) |
| Length | 110 inches (279 cm) |
| Operating weight | 2600 lbs (1179 kg) |
| Rear tread | 38 to 52 inches (96 to 132 cm) |
| Wheelbase | 70 inches (177 cm) |
| Width | 51 inches (129 cm) |
| Front tire | 4.00x15 |
| Rear tire | 8-24 |
| Weight | 2600 lbs (1179 kg) |
| Wheelbase | 70 inches (177 cm) |
| Ag front | 4.00x15 / 5.00x15 |
| Ag rear | 8-24 / 9-24 |
Belt Pulley
| Diameter | 7.25 inches (18 cm) |
|---|---|
| RPM | 1575 |
| Speed | 2989 ft/min (911.05 meters/min) |
| Width | 6.4 inches (16 cm) |
Links
| Description | M 3-point Hitch Conversion: Modification of the M's hitch to a three-point hitch |
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M Serial Number Location
| Description | Serial number plate located on the lower part of dash. |
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M Serial Numbers
| 1947 | 10001 |
|---|---|
| 1948 | 13734 |
| 1949 | 25604 |
| 1950 | 35659 |
| 1951 | 43525 |
| 1952 | 50580 |
| Description | FAQ: How to read a serial number table. |
| Final | 55799 |
Nebraska Tractor Test 387
| Belt fuel use (max) | 2.0 gal/hour (7.6 l/hour) |
|---|---|
| Belt power (max) | 20.45 hp (15.2 kW) |
| Description | Gasoline 4-speed 2WDOctober 6 - 16, 1947Link: Nebraska Tractor Test 387 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 18.15 hp (13.5 kW) |
| Max pull | 2,329 lbs (1056 kg) |
References
| Description | The John Deere Styled "Letter" Series by J.R. Hobbs / Tractors 1918-1976 published by John Deere* / Model "M" General-Purpose Tractor published in 1946, by John Deere / Operator's Manual Model "M" Tractor (OM-TM3) published in 1951 / *Publication contains known errors. |
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Speeds
| Description | With 9-24 rear tires. |
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Variants
| M | utility |
|---|---|
| MC | crawler |
| MI | industrial |
| MT | row-crop |