John Deere R4045 Parts & Accessories

9,216 parts and accessories that fit the John Deere R4045 — Electrical Parts. Genuine OEM and quality aftermarket, from an authorized John Deere dealer. Ship nationwide or pick up locally.

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← All categoriesElectrical Parts (1,382)
Sensor Wiring Harness, Boomtrac Pro

Sensor Wiring Harness, Boomtrac Pro

Part #BKK11653

$3,121.80

John Deere

Wiring Harness, Atd Temp

Wiring Harness, Atd Temp

Part #AKK11078

$1,339.70

John Deere

Sensor Wiring Harness, Sensors 1000

Sensor Wiring Harness, Sensors 1000

Part #AKK14473

$2,229.58

John Deere

Wiring Harness, Lc, Solution System

Wiring Harness, Lc, Solution System

Part #AKK15225

$1,099.45

John Deere

Sensor Wiring Harness, Jumper Harne

Sensor Wiring Harness, Jumper Harne

Part #BKK11655

$278.30

John Deere

Wiring Harness, Boom Wing

Wiring Harness, Boom Wing

Part #AKK10640

$1,663.80

John Deere

Wiring Harness, Boom Wing

Wiring Harness, Boom Wing

Part #AKK10641

$2,736.15

John Deere

Wiring Harness, Boom Wing

Wiring Harness, Boom Wing

Part #AKK10642

$3,180.17

John Deere

Wiring Harness, Scr Temp & Nox

Wiring Harness, Scr Temp & Nox

Part #AKK11077

$1,910.72

John Deere

Wiring Harness, Cable, Node, Inject

Wiring Harness, Cable, Node, Inject

Part #AKK14015

$1,478.30

John Deere

Wiring Harness, Direct Injection

Wiring Harness, Direct Injection

Part #AKK15561

$477.36

John Deere

Wiring Harness, Boom Trac Extension

Wiring Harness, Boom Trac Extension

Part #AKK17680

$952.47

John Deere

Wiring Harness, Center Frame

Wiring Harness, Center Frame

Part #AKK17681

$4,396.13

John Deere

Wiring Harness, Chassis FT4

Wiring Harness, Chassis FT4

Part #AKK17685

$8,142.74

John Deere

Wiring Harness, Chassis Stage II

Wiring Harness, Chassis Stage II

Part #AKK17686

$7,199.45

John Deere

Wiring Harness, Boom Wing

Wiring Harness, Boom Wing

Part #AKK17691

$4,265.70

John Deere

Vehicle Controller, Meca, Ccu

Vehicle Controller, Meca, Ccu

Part #AKK17740

$1,973.84

John Deere

Wiring Harness, Beacon

Wiring Harness, Beacon

Part #AKK17837

$188.68

John Deere

Wiring Harness, Chassis FT4

Wiring Harness, Chassis FT4

Part #AKK19194

$9,714.66

John Deere

Wiring Harness, Apply Mobile

Wiring Harness, Apply Mobile

Part #AKK19377

$314.45

John Deere

Wiring Harness, Chassis Stage II

Wiring Harness, Chassis Stage II

Part #AKK19813

$8,649.23

John Deere

Wiring Harness, Solution System 120

Wiring Harness, Solution System 120

Part #AKK32988

$3,408.32

John Deere

Module, Armrest Swtich Matrix

Module, Armrest Swtich Matrix

Part #AXE22307

$628.10

John Deere

Cab Wiring Harness, FT4 Sprayer

Cab Wiring Harness, FT4 Sprayer

Part #RE331467

$3,504.98

John Deere

Roof Wiring Harness, FT4 Sprayer

Roof Wiring Harness, FT4 Sprayer

Part #RE331468

$1,054.79

John Deere

Module, Sprayer Base Cab Switch Mod

Module, Sprayer Base Cab Switch Mod

Part #RE332635

$1,543.39

John Deere

Module, Sprayer Premium Cab Switch

Module, Sprayer Premium Cab Switch

Part #RE332636

$1,565.90

John Deere

Wiring Harness, GS3, Sprayer FT4

Wiring Harness, GS3, Sprayer FT4

Part #RE332945

$316.87

John Deere

Switch, Secondary Handbrake

Switch, Secondary Handbrake

Part #RE339728

$173.88

John Deere

Potentiometer, Rate Select Switch

Potentiometer, Rate Select Switch

Part #RE556409

$252.01

John Deere

Cab Wiring Harness, Sprayer, Denali

Cab Wiring Harness, Sprayer, Denali

Part #RE575120

$3,656.19

John Deere

Cab Wiring Harness, Command Arm, Ft

Cab Wiring Harness, Command Arm, Ft

Part #RE575122

$2,165.55

John Deere

Wiring Harness, Front Warning Light

Wiring Harness, Front Warning Light

Part #AKK10355

$158.93

John Deere

Solenoid Valve Coil, Whee

Solenoid Valve Coil, Whee

Part #AKK11112

$1,351.45

John Deere

Wiring Harness, Stop/Turn/Tail, Les

Wiring Harness, Stop/Turn/Tail, Les

Part #AKK18278

$228.00

John Deere

Wiring Harness, Beacon

Wiring Harness, Beacon

Part #AN400754

$127.87

John Deere

Wiring Harness, Hood Harness

Wiring Harness, Hood Harness

Part #RE295865

$499.43

John Deere

Wiring Harness, Drybox

Wiring Harness, Drybox

Part #AKK17694

$1,531.45

John Deere

Wiring Harness, Center Frame

Wiring Harness, Center Frame

Part #AKK19680

$4,150.23

John Deere

Wiring Harness, Drybox, NA Lighting

Wiring Harness, Drybox, NA Lighting

Part #AKK23261

$158.09

John Deere

Wiring Harness, Lc, Chassis

Wiring Harness, Lc, Chassis

Part #AN402888

$353.23

John Deere

Wiring Harness, Platform Wl, RH, Ha

Wiring Harness, Platform Wl, RH, Ha

Part #AN403078

$131.66

John Deere

Wiring Harness, Drybox, NA Lighting

Wiring Harness, Drybox, NA Lighting

Part #AN406029

$155.11

John Deere

Wiring Harness, S450 6090 S2 R4038

Wiring Harness, S450 6090 S2 R4038

Part #DZ102217

$2,394.68

John Deere

Wiring Harness, Mobile Weather Cab

Wiring Harness, Mobile Weather Cab

Part #PFA12631

$535.06

John Deere

Wiring Harness, R400 R600 Ucc

Wiring Harness, R400 R600 Ucc

Part #PFA12701

$541.77

John Deere

Wiring Harness, Direct Injection Co

Wiring Harness, Direct Injection Co

Part #AKK17693

$1,960.68

John Deere

Wiring Harness, R4 Series Di Pump

Wiring Harness, R4 Series Di Pump

Part #AKK18351

$2,093.53

John Deere

Wiring Harness, Dry Box, Taillights

Wiring Harness, Dry Box, Taillights

Part #AN401030

$132.85

John Deere

Conn Deutsch Dt 12W F S Gry Plstc

Conn Deutsch Dt 12W F S Gry Plstc

Part #57M11240

$85.93

John Deere

Wiring Harness, Left Front Wheel, P

Wiring Harness, Left Front Wheel, P

Part #AKK10084

$380.21

John Deere

Wiring Harness, Right Front Wheel

Wiring Harness, Right Front Wheel

Part #AKK10085

$388.32

John Deere

Wiring Harness, Front Warning Light

Wiring Harness, Front Warning Light

Part #AKK10354

$148.89

John Deere

Wiring Harness, Beacon

Wiring Harness, Beacon

Part #AKK17836

$132.94

John Deere

Wiring Harness, Stop/Tail, Asabe

Wiring Harness, Stop/Tail, Asabe

Part #AKK20610

$98.26

John Deere

Wiring Harness, Rear Amber Cradle L

Wiring Harness, Rear Amber Cradle L

Part #AKK20611

$153.87

John Deere

Wiring Harness, Whistler - Feeler &

Wiring Harness, Whistler - Feeler &

Part #AKK21136

$2,135.94

John Deere

Roof Wiring Harness, Sprayer, Outer

Roof Wiring Harness, Sprayer, Outer

Part #AKK21697

$1,109.49

John Deere

Cab Wiring Harness, Ngoi Sprayer

Cab Wiring Harness, Ngoi Sprayer

Part #AKK22950

$4,001.53

John Deere

Wiring Harness, Exactapply Polly So

Wiring Harness, Exactapply Polly So

Part #AKK23851

$3,197.89

John Deere

Shop all 1,382 R4045 parts →

John Deere R4045 parts — frequently asked

How many parts fit the John Deere R4045?
Koenig Marketplace lists 9,216 parts and accessories that fit the John Deere R4045, including electrical parts.
Are these genuine John Deere parts for the R4045?
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 R4045.
How do I find the right part for my R4045?
Search by John Deere part number or browse by category above. Every part shown is matched to the John Deere R4045 by its compatible-models data.
Can I get R4045 parts shipped or pick them up locally?
Both. Koenig ships John Deere R4045 parts nationwide, and you can also pick up at one of Koenig's stores.
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