John Deere MC

Last Updated: July 2024

Overview

The John Deere MC is a historical crawler tractor from the Two-Cylinder Letter series, produced by John Deere from 1949 to 1952 in Dubuque, Iowa. It comes with an open operator station, a track drive system, and mechanical differential disc brakes for superior stopping power in tough agricultural conditions. Powered by a 20.33 horsepower, 100.5 cubic inch, two-cylinder, liquid-cooled, gasoline engine rated at 1850 rpm, it supports a basic unsynchronized gear transmission with 4 forward and 1 reverse gears. Offering a rear PTO at 550 rpm, the John Deere MC is designed to cater to a variety of on-farm tasks with its robust construction and straightforward operator environment.
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Key Specifications

Category: Agricultural, Crawler

Power Output: 20.33

Transmission: Unsynchronized gear

Drive Type: Track

Operating Weight: 4,145

Fuel Type: Gasoline

John Deere MC vs. Similar Tractors

Power Output
Poor
Greater than 1% of similar tractors.
Operating Weight
Poor
Greater than 3% of similar tractors.

Technical Specifications

Engine

Manufacturer
John Deere
Model
John Deere
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Gasoline
Induction Type
Naturally Aspirated
Cylinders
2
Displacement (ci)
100.5
Bore (in)
4.02
Stroke (in)
4.02
Rated RPM
-
Power Output (hp)
20.33

Transmission

Type
Unsynchronized gear
Forward Gears
4
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
102
Width (in)
66.9
Height (in)
63.8
Operating Weight (lb)
4,145

Power Take-Off (PTO)

PTO Type
Rear
PTO Speed 1 (rpm)
550
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
Crawler
Drive Type
Track
Steering Type
-
Coolant Capacity (qts)
-
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
-
Manufacture - End Year
1952
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
Open
Starter Type
Electric
Brake Type
Differential mechanical disc
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: July 20, 1950

Maximum Power and Fuel Consumption

  • Maximum Power: 20.33 HP at 1850 rpm
  • Fuel Consumption at Maximum Power: 1.80 Gal/hr with a fuel efficiency of 0.489 lb/hp.hr

Drawbar Performance

  • Power at Rated Engine Speed: 18.34 HP with a drawbar pull of 2493 lbs and a speed of 2.37 mph
  • Fuel Consumption at Rated Speed: 0.460 lb/hp.hr with a fuel efficiency of 11.3 Hp.hr/gal

Belt Performance

  • Maximum Belt Power: 20.37 HP at 1850 rpm
  • Fuel Consumption at Maximum Belt Power: 1.80 Gal/hr with a fuel efficiency of 0.488 lb/hp.hr

Cooling System

  • Water Temperature: 172°F
  • Air Temperature: 64°F

    Nebraska Tractor Test Laboratory. (1950). Test 448: John Deere MC. University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/59

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