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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 ... $20.18
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 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 ... $79.85
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 ... $89.00
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 ... $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: 1020, 1520, 2020, 2030, 2040, 2240, 2440, 2510, 2520, 2630, 2[...] TP-RE42211B ... $25.49
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 ... $26.25
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 ... $21.98
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

4020 Cat II Top Link
Cat II Top Link - For tractor models 2510, 2520, 3020, 4000, 4020 (To S#24999) 4030, 4230.[...] AR34208 ... $199.81

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 ... $130.95

John Deere 4020 Sheet Metal / Body Parts

4020 Battery Box, LH
Battery Box, LH - For tractor models 2520, (3020 SN# 123000 and up), (4000 Row crop SN# 201000 and up), (4020 Row crop[...] AR40674 ... $80.37
4020 Battery Box, RH
Battery Box, RH - For tractor models 2520, (3020 SN# 123000 and up), (4000 Row crop SN# 201000 and up), (4020 Row crop[...] 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

  • Need injectors for Early 4020 - Couple weeks ago I posted about servicing my Early 4020 injectors and who could service these old injectors. Today the Diesel shop called and the tips are bad and they can not rebuild. So I'm getting them shipped back and I am in the market for some injectors now. Anybody got any ideas on who is a good source for the older thick injectors that Deere used on the early 4020's?
  • 4020 restoration project - I have started working on a 4020 restore. 1st question, Having pulled the sheet metal off, what is the best way to remove dents and restore lines? Can I just turn the hood upside down on a wooden benchtop and knock the dents back out with a smooth faced hammer? Or, is this likely to make it worse? Didn't really want to fill it full of body filler if that could be avoided. Thank you Michael.
  • 4020 John Deere - Do a lot of reading but don't post much. Today I have problem with brakes on 4020. They are sticking and I cleaned all linkage and sprayed a little lub on. I think the brake pad itself is sticking the linkage returns when you take foot off pedal, but the brake is still on. If it makes a differents it is a 1965. All help appreciated. Rich
  • John Deere 4020 brakes - Have a 4020 brakes work fine while the engine is running. If you have the brake pedal pressed while you shut of the engine the brakes hold. But if engine stalls before you push the breaks the pedal bottoms out. checked the check valves in brake valve all looked OK. A 3020 that I know of you can use the brake a few times with the engine off.
  • Tim S., 4020 Steering Wheel - On my 1971 4020 the shaft the steering wheel is attached to has about 1/4" to 3/8" axial play (up and down). Is this an issue? Looking at the parts book it looks like this shaft is attached to yet another shaft with a sleeve and pin so I am thinking this is just normal. Paul


  • Recent Ads


    Wanted: Looking for a set of John Deere flat top fenders for 730 tractor. I believe fenders from a 4020 will also fit. Condition: Good, Posted 2017-03-26 by John, in Princeton IL.

    M&W turbo for a John Deere 4020. Includes the latter style turbo with the exhaust thru the factory hood opening. Has hood patch,oil filter and lines,manifold,seven blade fan and fan shroud. Just removed from tractor. Condition: Good, Price: 1000, Posted 2017-04-06 by tom, in Cobb WI.

    M&W Aluminum big oil pan for John Deere 4020. Just removed from tractor. No cracks or breaks. Condition: Very Good, Price: 2000, Posted 2017-04-06 by tom, in Cobb WI.

    M&W turbo set up for John Deere 4000, 4010, 4020 diesel tractors. Excellent condition. Freshly rebuilt turbo. Can ship. Call for details. Posted 2017-04-09 by Not given, in Postville IA.

    M&W fan shroud for John Deere 4000, 4010 and 4020 tractors. Excellent condition. Can ship. Call for details. Posted 2017-04-09 by Not given, in Postville 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)


    I am looking for an original John Deere R.O.P.S. with canopy for a John Deere 4020. With all hardware and mounting brackets. Condition: Excellent, Price: Fair, Posted 2016-12-16 in Dyersville IA.

    Complete M&W turbo set-up for John Deere 4000, 4010, 4020 tractors. Came off of a running tractor & is in great condition & ready to go. Exhaust comes out of original hole in hood. Can ship. Posted 2016-12-19 in Postville IA.

    WANTED John Deere 4020 M&W 2 piece exhaust manifold in working condition. Condition: working, Posted 2016-12-30 in St Ignatius MT.

    J.D. 4020 power shift diesel runs and shifts good Condition: good, Price: 7800., Posted 2017-01-02 in Bicknell IN.

    John Deere row crop fenders & mounting brackets came off 4020 will fit older models Condition: 1 straight & 1 a little rough , Price: 700, Posted 2017-01-04 in Morgantown IN.

    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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