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John Deere 4020 - Featured Tractor

The John Deere 4020 model tractor was produced in 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 and 1972 in Waterloo, Iowa and Mexico. It has a 404 ci engine rated at 101 horsepower.

Our Most Popular JD 4020 Parts

(Click here to see all parts available)

John Deere 4020 Clutch

4020 Clutch Adjusting Tool
Clutch Adjusting Tool - For tractor models 3010, 3020, 4000, 4010, 4020, 4320, 4520, 4620, 7020.[...] 830602 ... $72.32

John Deere 4020 Cooling System

4020 Radiator Cap
Radiator Cap - For tractor models 2010, 2510, 2520, 3010, 3020, 4000, 4010, 4020, 4030, 4320, 4430, 4520, 4620, 463[...] R27209 ... $20.78
4020 Water Pump
Water Pump - For tractor models 3010, 3020, 4000, 4010, 4020 All Diesel without AC. Replaces casting numbers R263[...] AR45332 ... $91.43

John Deere 4020 Decals and Emblems

4020 Decal Set
Decal Set - COMPLETE Decal Set for John Deere Model 4020. Does not include Syncro-Range or Powershift decals, Se[...] R2610 ... $29.25
4020 Hood Ornament
Hood Ornament - For tractor models 1010, 2010, 2510, 2520, 3010, 3020, 4000, 4010, 4020, 4320, 4520, 4620, 5010, 502[...] AR28047 ... $31.45
4020 Side Hood Emblems, OEM Set
Side Hood Emblems, OEM Set - 37" in length with 5 mounting studs. Mounting is speed nut type, no threads. For 1010, 2010, 2510, 2[...] R2533 ... $258.76
4020 Syncro-Range and Power Shift Decal Set
Syncro-Range and Power Shift Decal Set - This Mylar set covers those decals that are different than the normally used set when used for the S[...] AR52393 ... $40.31

John Deere 4020 Electrical System

4020 12 Volt Conversion Kit
12 Volt Conversion Kit - Converts 24 Volt systems to 12 Volts on gas and diesel models 3010, 3020, 4010, 4020. Kit includes: [...] TS-8000 ... $380.88
4020 Alternator
Alternator - 12 volt, 72 amp. For tractor models (H155 1972-73 with 531 dsl), 544, (5200 1974-77 with 404 dsl), ([...] ADR0133 ... $64.79
4020 Electronic Ignition Conversion Kit, 12 volt negative ground
Electronic Ignition Conversion Kit, 12 volt negative ground - For Tractor Models 4010, 4020 with 302, 340 eng., 4020 with 362 eng using Delco distributor # 111262[...] 1163A ... $81.45
4020 Electronic Ignition Conversion Kit, 12 volt positive ground
Electronic Ignition Conversion Kit, 12 volt positive ground - Use on the following tractors: 4010 and 4020 with 6-cylinder engine sizes 302, 340, 362 using Delco [...] 1163AP12 ... $90.78
4020 Ignition Switch with 2 Keys
Ignition Switch with 2 Keys - 6 Terminal. For tractor models 2510, (5010 SN# 008000 and up), (3020 SN# 68000 to 122999), (4020 SN#[...] AR39505 ... $24.75
4020 Key Switch, 6 Terminal
Key Switch, 6 Terminal - With key. For tractor models (1010 gas or LP up to SN# 51039), (2010 gas/LP up to SN# 055380), (3010[...] AR26528 ... $38.40
4020 Key Switch, 6 Terminal
Key Switch, 6 Terminal - With keys. For tractor models (3010 diesel), (3020 diesel up to SN# 67999), (4010 diesel), (4020 die[...] AR26557 ... $43.13
4020 Light Switch, 12 Volt
Light Switch, 12 Volt - 4 position, 5 terminals and fuse, .50" thread dia. For tractor models 1010, 1020, 1520, 2010, 2020, [...] AR28401 ... $21.95

John Deere 4020 Fuel System / Air Intake

4020 Carburetor Kit, Basic
Carburetor Kit, Basic - Kit for Zenith 12510, 13429, 12879, 13320, 13450, 13430 carbs on 3010, 3020, 4020. John Deere Carb: [...] Z106 ... $29.96
4020 Carburetor, Rebuilt
Carburetor, Rebuilt - Fits 3010, 3020, 4010, 4020 - replacement for OEM USX20, USX21, USX30, USX31, USX35, USX36, USX48. A[...] 1532-CARB ... $310.41
4020 Carburetor, Rebuilt
Carburetor, Rebuilt - Fits 3010, 3020, 4010, 4020 - replacement for OEM 12510, 12879, 13320, 13429, 13430. Add $200.00 cor[...] 1534-CARB ... $278.31
4020 Fuel Injector
Fuel Injector - For tractor models JD 3010, 3020, 4010, 4020 model tractors with injector #20494. Replaces AR39811, [...] AR50781 ... $35.43
4020 Fuel Injector
Fuel Injector - Nozzle, Injector. Pencil-type injector For tractor models 840, 940, 1020, 1030, 1040, 1129, 1139, 11[...] AR89564 ... $33.75
4020 Fuel Pump
Fuel Pump - Fuel transfer pump, similar to original equipment manufacturer, cannot be repaired. Diesel tractors:[...] TP-RE42211A ... $62.44
4020 Fuel Pump
Fuel Pump - This fuel pump is for diesel tractors: 830, 930, 1020, 1520, 2020, 2030, 2040, 2240, 2440, 2510, 252[...] TP-RE42211B ... $26.75
4020 Fuel Transfer Pump Repair Kit
Fuel Transfer Pump Repair Kit - Repair kit, for fuel transfer pump RE42211, RE42211B. Used on diesel tractors: 1020, 1520, 2020, 203[...] RE42211RK ... $20.25
Grommet, Fuel Filler, Black - For tractor models 70, 620, 630, 720, 730, 1020, 1520, 2020, 3010, 3020, 4010, 4020, 5010. Measures [...] A5157R ... $19.95
Grommet, Fuel Filler, Red - For tractor models 820 (3 cyl.), 1010, 1020, 1520, 1530, 2010, 2020, 2030, 2040, 2240, 2440, 2510, 2[...] R39613R ... $18.75
4020 Precleaner Cover, Metal
Precleaner Cover, Metal - 7" diameter with brass nut, fits Donaldson pre-cleaners. For tractor models Some 60, 70, 520, 530, 6[...] AF3583R ... $26.48

John Deere 4020 Gauges

4020 Tachometer Cable
Tachometer Cable - 33" long. For tractor models 3010, 3020, 4010, 4020, 4320, 4520, 4620.[...] AR26721 ... $16.13
4020 Transmission Oil Temperature Gauge
Transmission Oil Temperature Gauge - For tractor models (3020 SN# 123000 and up), (4020 SN# 201000 and up), 4320, 4520, 4620.[...] AR46979 ... $43.90

John Deere 4020 Hitch / Drawbar

Cat II Top Link - For tractor models 2510, 2520, 3020, 4000, 4020 (To S#24999) 4030, 4230. Uses F2680R Cat I Ball End [...] AR34208 ... $197.73

John Deere 4020 Lights

4020 Dash Light - 12 Volt
Dash Light - 12 Volt - For tractor models 50 up to SN# 5016122, 60 to SN# 6017060, 70 Highcrop to SN# 706327, 520 to SN# 52[...] AD2835R-12V ... $18.71
Light Switch, 4 position - 6 terminal, uses knob R46092. For tractor models (2350 with sound guard cab), (2520 from SN# 22001 a[...] AR48724 ... $27.56
4020 Work Tail Light
Work Tail Light - 2 wire connectors. 6 Volt. For tractor models 50, 60, 70, 80, 520, 530, 620, 720, 730, 820, 930, 102[...] AR77326 ... $51.67

John Deere 4020 Seats

4020 Seat Cushion Set
Seat Cushion Set - Yellow Leatherette upholstery seat cushion set. Includes seat, lower and upper backrests. For tracto[...] JD5678 ... $119.04

John Deere 4020 Sheet Metal / Body Parts

4020 Battery Box, LH
Battery Box, LH - For tractor models 2520, (3020 serial number 123000 and up), (4000 Row crop serial number 201000 and[...] AR40674 ... $80.37
4020 Battery Box, RH
Battery Box, RH - For tractor models 2520, (3020 serial number 123000 and up), (4000 Row crop serial number 201000 and[...] AR40673 ... $80.37
Side Screen - Side grill panel, 17 x 19-3/4. For tractors: 4000, 4010, 4020. Two(2) used per tractor. Sold individ[...] AR32720 ... $78.75

John Deere 4020 Steering

4020 Steering Wheel
Steering Wheel - Steering wheel, 16 1/2 diameter, 7/8" splined hub, smooth finish. Tractors: 820 Germany, 830 Germany[...] T22875 ... $37.50
Steering Wheel - 16" diameter, 7/8" splined hub, smooth finish, like original. For tractor models 1010, 2010, 2510, 3[...] AR26625 ... $43.68
Steering Wheel Cap - This 2 legged deer, correct cap for many covered steering wheels on JD models from 1968-2000. Fits a[...] AL155227 ... $32.76
Steering Wheel Cap, Black Face - For tractor models: 1020, (820 3-cyl), 1520, 2020, 2510, 2520, 3020, 4000, 4020, 4320, 4520, 4620, 5[...] R26673 ... $48.30

John Deere 4020 Wheels

4020 Front Wheel Bearing Kit
Front Wheel Bearing Kit - Wheel bearing kit. For 1020, 1520, 2030, 2440, 2510, 2520, 2630, 2640, 3010, 3020, 4000, 4010, 4020,[...] FW157S ... $44.86

Click here to see our full catalog of John Deere 4020 Parts



Recent Topics

  • Value of a Rebuilt 4020 Engine - I have a motor from a 68 4020 that I'm thinking about putting up for sale. I was gonna use it for a project to repower a gas 4020 or similar project but I don't think I will ever get around to it--considering all my other projects. Curious what it might be worth. I had it completely overhauled, using a high compression engine kit, I also sent the injection pump out and had it freshened up and set at 10% over stock. We even bypassed the crank ventilator. It is ready to fire. In addition, it ...
  • Splitting 4020 - Gonna be splitting my 1968,,, 4020..Have a oil leak on rear seal of engine or front seal on rear end or both. I am sure it has gotten on clutch. Will be looking to replace all items that are needed since I will be going to the trouble of splitting. Gonna make some stands to hold up front end. Will be doing it in my shop with a concrete floor,chain hoist, floor jacks ect. Any items I need to watchout for, or helpful hints would be appreciated. Thanks D :idea: :idea:
  • 4020 engine overhaul - I am not needing an overhaul just yet, but I know the time will come. If the complete major kit can be bought for $1500--1700, then can someone tell me why it usually costs more like $4000-$6000 by the time it is all done? What is a rough breakdown of the other costs besides the kit?
  • 1967 4020 powershift broken parking pawl noise? - Hey guys i have a 1967 4020 powershift, my father n law was loading it on a trailer and heard a loud pop when he took it out of park. the forward and reverse gears still work as normal but now i have no park, the tractor still creeps unless i set the loader down or something. I have been through the linkage with a fine tooth comb and it is functioning as it should. i am thinking the parking pawl popped off the shaft. I can get by without that for what i am using the tractor for. (not worth split ...
  • 4020 help reconnecting trans to clutch housing - 4020 1964 synchro going back together between trans and clutch housing. Got it to where the dowel pins are started and bolts even screw in about 3/8 inch. About 3/4 inch of space to go. PTO gears in mesh and turn. Input shaft to trans seems to be in mesh, and turns trans top shaft. Still turns it when I back housings apart another 1/8 inch, so almost has to be started in the hole. But it gets tight and flywheel does not want to turn if I start to draw the bolts in more. I have ...


  • Recent Ads


    NEW JOHN DEERE STEEL FUEL TANKS THAT FIT 4010 AND 4020 in original box with all hardware also have two used tanks for same models and a used tank for 3020 price varies on used tanks Condition: stated, Price: 750nos, Posted 2017-12-18 by DICK, in ISANTI MN.

    Wanted: Looking for John Deere 4000 or 4020 late model parts rear engine side shields ,front side shields ,radiator shroud and platform with diff lock Condition: Nice, Price: ?, Posted 2017-12-19 by Scott , in Uniondale PA.

    Wanted: Looking for glass for a cozy cab on my 4020 john deere Condition: Any, Price: 1, Posted 2017-12-24 by Chris, in Vienna MO.

    Have 3 roosa master diesel injection pumps to sell for 125 each. One off Farmall 460 that ran this summer, one off Farmall 560 parted, One from John Deere 4020 rebuilt but problem inside from installed wrong Condition: various, Price: 125, Posted 2017-12-25 by Mark S, in Frazee MN.

    Top link for john deere 2 cyl.the hook end has a newer part number i am guessing for a 3020 or 4020 perhaps. Condition: used, Price: 250, Posted 2017-12-29 by ted brown, in farley IA.

    Important: Yesterday's Tractor Co. takes no responsibility for the accuracy, validity or availability of the items listed here nor do they receive any profit from the 3rd party transactions that may transpire from the use of this website. Yesterday's Tractor Co. does not sell tractors, nor do we collect money or broker transactions for others.


    Archived Ads for John Deere 4020 Tractors
    (Information only, no longer for sale)


    M&W turbo set-up for John Deere 4000, 4010 & 4020 diesel tractors. Nice condition. Call for details. Posted 2017-06-19 in Postville IA.

    JD cast cat 2 Quick coupler flip up levers came out late 4020- 4230 Condition: excellant, Posted 2017-06-22 in coggon IA.

    John deere double step for 3020-4020 standard.It bolts to left frame rail Condition: good, Price: ?, Posted 2017-06-25 in Phillipsburg NJ.

    1966 John Deere 4020 Levi Power fwa MW turbo kit Condition: Good, Price: 15000, Posted 2017-06-28 in IL.

    1965 JOHN DEERE 4020 Diesel Pedal Tractor & Matching Pull Behind Trailer. Minor Scratches on Tractor And Trailer - 400 Condition: good, Price: 400.00, Posted 2017-07-13 in Knoxville TN.

    Important: Yesterday's Tractor Co. takes no responsibility for the accuracy, validity or availability of the items listed here nor do they receive any profit from the 3rd party transactions that may transpire from the use of this website. Yesterday's Tractor Co. does not sell tractors, nor do we collect money or broker transactions for others.




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