Tractor · 1949Unverified
John Deere R
John Deere R — Two-Cylinder Letter Series · 35 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
35 hp
Max power
32.2 kW
Weight
7400 to 7603 pounds
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Standard-tread tractorReference
Built in Waterloo, Iowa, USAReference
Total built21,293Reference
Original price was $3,650 in 1954Reference
The model R was John Deere's first diesel tractor. The R was the first John Deere tractor with a live PTO, which used a separate clutch.Reference
Two-wheel driveReference
Manual steeringReference
Mechanical drum brakesReference
Open operator station.Reference
Engine
John Deere 6.8L 2-cyl dieselReference
Fuel tank83.3 LReference
Aux. fuel3.8 LReference
Drawbar (claimed)26.1 kWReference
Belt (claimed)32.1 kWReference
Plows4 (14-inch)Reference
Drawbar (tested)32.2 kWReference
Belt (tested)36.2 kWReference
John DeereReference
dieselReference
2-cylinderReference
liquid-cooledReference
Displacement6.8 LReference
Bore/Stroke146 x 203 mmReference
Air cleaneroil bathReference
Compression16:1Reference
Rated RPM1000Reference
Firing order1-2Reference
Starter type2-cylinder pony motorReference
Coolant capacity51.6 LReference
Oil capacity12.3 LReference
Belt power (max)36.2 kWReference
Max power32.2 kWReference
Transmission
5-speed gearReference
TypegearReference
Gears5 forward and 1 reverseReference
Clutchdry discReference
Oil capacity9.0 LReference
Oil typeSAE 90Reference
The tractor must be stopped and clutch used to shift gears.Reference
PTO & Hydraulics
Rear PTOliveReference
Rear PTO Type540Reference
Dimensions
Wheelbase217 cmReference
Weight7400 to 7603 poundsReference
Front tire7.50-18Reference
Rear tire14-34Reference
Ag front7.50-18Reference
Ag rear14-34Reference
Ag rear15-34Reference
Ag front30x6 steelReference
Ag rear54x12 steelReference
Length373 cmReference
Width201 cmReference
Height198 cmReference
Shipping weight3356 kgReference
Operating weight3448 kgReference
R Serial Number Location
Right side of tractor above belt pulley.Reference
R Serial Numbers
19491000Reference
19503541Reference
19516505Reference
195210745Reference
195315720Reference
195419485Reference
Final22293Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundpositiveReference
Battery volts6Reference
Test results
Diesel 5-speed 2WDApril 19 - 28, 1949Link: Nebraska Tractor Test 406 fileReference
Belt fuel use (max)10.6 l/hourReference
Drawbar performanceReference
Gear 3 used for power test.Reference
Max pull3013 kgReference
Gear 1 used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.