John Deere R4038 Parts & Accessories

Q: How do I find the right part for my R4038?

Search by John Deere part number or browse by category on this page. Every part shown is matched to the John Deere R4038 by its compatible-models data.

9,003 parts and accessories that fit the John Deere R4038 — Engine Parts. Genuine OEM and quality aftermarket, from an authorized John Deere dealer. Ship nationwide or pick up locally.

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← All categories Engine Parts (158)

Air Cleaner Kit, Engine Air Cleaner

Part #BKK10681

$759.00

John Deere

Rod, Assembly

Part #AHC16641

$477.81

John Deere

Oil Pan, Assy, 9.0L Engine W/ Dowel

Part #AKK17557

$10,880.64

John Deere

Diesel Eng 6090HN007, FT4 R4038/R404

Part #RG39572

$64,224.48

John Deere

Diesel Engine Reman, Complete 6090

Part #RM100460

$50,581.67

John Deere Reman

Diesel Engine Reman, Complete 6090

Part #RM100461

$44,713.83

John Deere Reman

Diesel Engine, 6090HN018 FT4 Siv Sp

Part #SZ10158

$62,773.89

John Deere

Fuel Tank Assy

Part #AKK31979

$2,840.75

John Deere

Flywheel, Statically Balanced Assem

Part #DZ101998

$931.07

John Deere

Sprayer Nozzle Kit, Boom Plumbing K

Part #BKK11393

$14,362.00

John Deere

Push Rod, Sprayer, FT4

Part #R550936

$60.81

John Deere

Engine, Reman Cba 6090 FT4

Part #RM100417

$19,974.01

John Deere Reman

Air Flow Tube, Aal Bundle Assy

Part #AN403886

$94.70

John Deere

Rail, 100' Outer Wing, Cameras Supp

Part #AKK60310

$876.91

John Deere

Rail, 90' Outer Wing, Camera Suppor

Part #AKK60808

$253.64

John Deere

Sprayer Nozzle Kit, Pressure Recirc

Part #BKK11372

$3,977.60

John Deere

Rail, Camera Tray #1, LH Inner Wing

Part #KK94612

$493.62

John Deere

Rail, Camera Tray #3, LH Inner Wing

Part #KK95240

$460.09

John Deere

Rail, Camera Tray #1, RH Inner Wing

Part #KK95543

$493.62

John Deere

Rail, Camera Tray #3, RH Inner Wing

Part #KK95545

$477.85

John Deere

Rail, Camera Tray #2, LH Inner Wing

Part #KK95981

$145.08

John Deere

Rail, Camera Tray #2, RH Inner Wing

Part #KK95984

$147.94

John Deere

Line, Turbo Oil Inlet

Part #DZ119768

$388.43

John Deere

Three Bolt Flange

Part #R534602

$38.16

John Deere

EGR Gas Transfer Tube

Part #R534603

$78.97

John Deere

Turbo Coolant Supply

Part #RE549844

$147.36

John Deere

Turbocharger

Part #RE550179

$2,807.60

John Deere

Turbo Oil Return

Part #RE550909

$491.88

John Deere

Turbo Coolant Return

Part #RE559452

$88.63

John Deere

Turbo Interstage

Part #RE559585

$749.07

John Deere

Line, Injection Unit Supply Coolant

Part #RE565223

$129.58

John Deere

Rocker Arm, Breakaway Spring Castin

Part #KK40260

$222.04

John Deere

Nozzle, Exactapply, Turret

Part #KK24550

$18.18

John Deere

Diesel Engine, 6090HN008 T2 Sii R40

Part #RG39954

$58,245.53

John Deere

Diesel Engine Reman, Complete 6090

Part #RM100462

$50,581.67

John Deere Reman

Air Flow Tube, Aal Bundle Assy

Part #AKK31836

$226.73

John Deere

Rail, Outer Wing, Cameras Support W

Part #AKK58395

$875.32

John Deere

Sender, Fuel

Part #AKK12119

$467.04

John Deere

Nozzle, Retainer, Cap

Part #PM20030

$1.39

John Deere

Rail, 1M - Fabricated Solution Plum

Part #KK41007

$357.57

John Deere

Flywheel, Statically Balanced Assem

Part #DZ101995

$1,430.93

John Deere

Piston, 90 X 45 X M30 2 Pc Seal

Part #HC16820

$82.70

John Deere

Cylinder Block Kit

Part #AT313586

$4,504.40

John Deere

Nozzle, Exactapply, Turret

Part #KK121737

$13.61

John Deere

Push Rod, Steering Column

Part #R272898

$35.01

John Deere

Case, Exactapply Nozzle Service Kit

Part #KK37255

$113.32

John Deere

Fuel Cooler, Samsung

Part #RE241176

$202.10

John Deere

W/ Screws & O-Rings

Part #RE550926

$988.30

John Deere

Hand Operated Valve, Dust Ejector V

Part #T309251

$56.11

John Deere

Turbocharger

Part #RE550227

$3,874.40

John Deere

Turbocharger Reman

Part #RM100397

$2,965.15

John Deere Reman

Fuel Pump Service Pump

Part #RE552426

$1,631.63

John Deere

Turbocharger

Part #DZ122655

$1,858.60

John Deere

Piston Ring Kit

Part #AT319115

$342.43

John Deere

Nozzle, Spray

Part #AT183417

$49.09

John Deere

Dipstick, With Oil Filler Cap

Part #DZ116878

$82.47

John Deere

Bleed Valve, Air

Part #RE548605

$188.70

John Deere

Engine, Cba 6090

Part #SE502847

$21,474.65

John Deere Reman

Plate, Fuel Sender Mounting

Part #R330922

$39.02

John Deere

Coolant Return

Part #RE554998

$72.34

John Deere

Shop all 158 R4038 parts →

John Deere R4038 parts — frequently asked

How many parts fit the John Deere R4038?

Koenig Marketplace lists 9,003 parts and accessories that fit the John Deere R4038, including engine parts.

Are these genuine John Deere parts for the R4038?

Yes — Koenig is an authorized John Deere dealer, so you'll find genuine OEM John Deere parts alongside quality aftermarket options that fit the John Deere R4038.

How do I find the right part for my R4038?

Search by John Deere part number or browse by category above. Every part shown is matched to the John Deere R4038 by its compatible-models data.

Can I get R4038 parts shipped or pick them up locally?

Both. Koenig ships John Deere R4038 parts nationwide, and you can also pick up at one of Koenig's stores.

Parts for other John Deere models

John Deere S690 John Deere 8400 John Deere 8200 John Deere 9600 John Deere T670 John Deere W650 John Deere T660 John Deere 6130M John Deere T560 John Deere W660 John Deere 6140M John Deere 8300