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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
Water Pump - For tractor models 3010, 3020, 4000, 4010, 4020 All Diesel without AC. Replaces casting numbers R263[...] AR45332 ... $113.12

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 ... $138.69
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 ... $45.07

John Deere 4020 Electrical System

4020 12 Volt Conversion Kit with Bosch Starter
12 Volt Conversion Kit with Bosch Starter - This 12 volt conversion kit is for a 24 volt system with a Bosch starter. Converts 24 Volt systems t[...] TS-8000 ... $380.88
4020 Alternator
Alternator - 12 volt, 72 amp. For tractor models (5200 1974-77 with 404 dsl), (5400 1974-77 with 531 dsl), 5420, [...] ADR0133 ... $77.47
Coil, 6V - Distributor Coil, 6 volt. Delco Remy equipped. For tractor models B, M, 40, 50(after 5021479), 60LP,[...] D4PE12029AA ... $19.61
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 ... $99.14
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 ... $25.74
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 ... $26.84

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 ... $26.25
4020 Carburetor, Rebuilt
Carburetor, Rebuilt - This rebuilt carburetor is a direct replacement for OEM numbers matching: USX20, USX21, USX30, USX31[...] 1532-CARB ... $265.60
4020 Carburetor, Rebuilt
Carburetor, Rebuilt - This rebuilt carburetor is a direct replacement for OEM numbers matching: 12510, 12879, 13320, 13429[...] 1534-CARB ... $265.60
4020 Fuel Injector
Fuel Injector - For tractor models JD 3010, 3020, 4010, 4020 model tractors with injector #20494. Replaces AR39811, [...] AR50781 ... $33.75
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 ... $26.25
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 - Category 2 Quick Release Top Link with Knuckle. Extends from 25 inches to 33.5 inches. Barrel length[...] AR34208 ... $181.33

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 ... $20.22
Light Switch, 4 position - 6 terminal, uses knob R46092. For tractor models (2350 with sound guard cab), (2520 from SN# 22001 a[...] AR48724 ... $24.05
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, 3-1/2 dished, smooth finish. Tractors: 820 German[...] T22875 ... $37.50
Steering Wheel - 16" diameter, 7/8" splined hub, smooth finish, like original. For tractor models 1010, 2010, 2510, 3[...] AR26625 ... $43.40
Steering Wheel Cap - This 2 legged deer, correct cap for many covered steering wheels on JD models from 1968-2000. Fits a[...] AL155227 ... $35.39
Steering Wheel Cap, Black Face - For tractor models: 1020, (820 3-cyl), 1520, 2020, 2510, 2520, 3020, 4000, 4020, 4320, 4520, 4620, 5[...] R26673 ... $64.17

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

  • Basic 4020 powershift question - I am not in a position to look at the manuals but i have a 4020 powershift i need to move, non runner, is there a tow position on them? or just dont leave it park? its only gotta go far enough to get on the trailer and then off once its at my house. I havent ever been around the powershifts so im not real sure and i would rather ask the question instead of risk any damage. thanks!
  • 4020 shifter question - I have a 72 model jd 4020 with the synchro tranny. When I shift directly into fifth gear there is nothing there. If I take the shift lever down to reverse then back up to fifth it goes right in gear. Is something out of adjustment or just loose linkage?
  • Update on 1971 4020 starting issue - I replaced the relay that Tx Jim had posted a picture of except mine is the newer version, cleaned all terminals that connects to it then i had fire to the ignition switch, i charged my batteries which are 2 of the 6 volts hooked in series and cleaned the main ground wire from the battery that is bolted to the top of transmission case and she started right up, now i need to work on my lights as they are not working, so thanks to Tx Jim, Bob and Tim S for all of your help, I have a repair manual ...
  • Crazy 4020 gasser - Hi all, new here and I m having an issue. Last winter i put a new ma carb on my 4020 gas and it never ran better. When I was using it it s just quit like someone shut the key off and there it sat until this spring.The only thing I could find was a broken spring that connects the throttle to the govoner under the dash.i finally got it to start again but hardly runs good enough to drive it. I replaced the points, condenser,coil,rotor and battery, even tried to adjust the carb nothing makes a diffe ...
  • 4020 Fuel issue - Hey, i have a 1968 JD 4020. The tractor was parked around 5 years ago and was running great at the time. The tractor has been a one owner unit and is in great shape. I am having trouble getting fuel to the injectors now, and havent been able to get it to start. I have bleed the filters and the lines to the injection pump. I have steady fuel when cranking from the bleed port on the other side of the injector pump inlit. I also have good fuel on the bleed port near where the return line connects t ...


  • Recent Ads


    Wanted: Wanted John Deere 4010 or 4020 lp high crop Condition: any, Posted 2019-11-14 by Doug , in homer MI.

    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)


    John Deere 4020 syncro trans and rearend and other parts. Condition: good working condition, Price: 1500.00, Posted 2019-08-07 in Alvaton KY.

    Wanted 18x34 or20x34 double bevel rims for 4020 John Deere tractor. Condition: good useable , Price: reasonable, Posted 2019-08-07 in Alvaton KY.

    JOHN DEERE 4020 high crop powershift 3pt recent top end motor work and powershift by john deere dealer nice paint california tractor photos available shipping anywhere early model not side console Condition: very nice, Price: 15000bo, Posted 2019-08-11 in bethel MN.

    JOHN DEERE 4020 high crop 1970 side console fully restored expo paint rice rears double stack front wts rear wts 3 pt h/d drawbar correct fenders and lites photos available shipping anywhere in enclosed semis Condition: excellent, Price: 27500, Posted 2019-08-13 in bethel MN.

    JOHN DEERE 4020 high crop 1971 side console new rice rears expo condition h/d drawbar 3pt correct fenders with all lites d/hyd photos available shipping anywhere in enclosed semis Condition: expo or better, Price: 30,000bo, Posted 2019-08-13 in bethel MN.

    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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