John Deere R400 Parts & Accessories

Q: How do I find the right part for my R400?

Search by John Deere part number or browse by category on this page. Every part shown is matched to the John Deere R400 by its compatible-models data.

553 parts and accessories that fit the John Deere R400. Genuine OEM and quality aftermarket, from an authorized John Deere dealer. Ship nationwide or pick up locally.

Shop R400 parts by category

Hardware (165)Sheet Metal & Body Parts (124)Mowing & Cutting Parts (59)Electrical Parts (37)Bearings & Bushings (35)Seals, Gaskets & O-rings (29)Drivetrain Parts (22)Operator Station (20)Crop Handling Unit Parts (20)Frames, Housings & Weights (8)Belts & Chains (7)Hydraulic Parts (7)

Shoe

Part #AFH221148

$245.37

John Deere

Cutterbar (4.0 M Wr)

Part #AFH221762

$14,405.01

John Deere

Structural Tube, 4M Windrower Cutte

Part #FH339745

$334.48

John Deere

Angle, 4M Cutterbar Reinforcement

Part #FH339746

$448.98

John Deere

Plate, 4M Cutterbar Reinforcement

Part #FH339748

$192.89

John Deere

Plate, LH Cutterbar Spacer

Part #FH339750

$22.96

John Deere

Plate, RH Cutterbar Spacer

Part #FH339771

$30.41

John Deere

Angle, Lift Pocket Support

Part #FH339778

$96.05

John Deere

Hood, Rear 4M Windrower

Part #FH339932

$310.62

John Deere

Support, Top LH Fixed

Part #FH339939

$226.98

John Deere

Support, Top RH Fixed

Part #FH339940

$192.79

John Deere

Plate, (Forming Shield Filler)

Part #FH339943

$471.02

John Deere

Sheet, LH Tuck

Part #FH339952

$151.77

John Deere

Sheet, RH Tuck

Part #FH339953

$160.88

John Deere

Angle, 4M Cutterbar Reinforcement-R

Part #FH339994

$398.57

John Deere

V-Belt, Impeller Drive Belt

Part #FH340037

$139.31

John Deere

Spacer, 4.0M Wr Impeller Forming Sh

Part #FH340824

$44.88

John Deere

Plate, Wr Rhs Crop Deflector

Part #FH340832

$187.13

John Deere

Plate, Wr Lhs Crop Deflector

Part #FH340833

$118.86

John Deere

Wr Gearbox Shield

Part #FH341734

$130.40

John Deere

Wr Roll Drive Shield Rhs

Part #FH342984

$170.68

John Deere

Wr Roll Drive Shield Rhs

Part #FH342985

$203.66

John Deere

Shield, Wr Roll Drive Access Door

Part #FH342986

$187.09

John Deere

Gearbox Shim 3MM

Part #FH343081

$20.82

John Deere

Gearbox Shim 1.6MM

Part #FH343082

$19.37

John Deere

Plate, (Roll Forming Shield Filler)

Part #FH343870

$71.86

John Deere

Plate, Wr Lhs Crop Deflector Impell

Part #FH343914

$275.95

John Deere

Plate, Wr Rhs Crop Deflector Impell

Part #FH343917

$232.27

John Deere

Strap, Quadrant Lockout Plate

Part #FH344036

$25.36

John Deere

Angle, Swathboard Standoff

Part #FH344302

$53.43

John Deere

Controller Mounting Plate

Part #FH344396

$33.08

John Deere

R400 Gearbox Shield Filler

Part #FH344907

$130.59

John Deere

Shield, Pulley

Part #FH345118

$164.08

John Deere

Shield, Belt

Part #FH345119

$154.96

John Deere

Bracket, RH Light R400

Part #FH345129

$223.14

John Deere

Bracket, LH Light R400

Part #FH345130

$219.59

John Deere

Gearbox Shim 1.6MM

Part #FH349892

$1.58

John Deere

Conn Tyco HDP20 9W Ms Blk Plstc

Part #57M16456

$69.51

John Deere

4.0 M Balanced Impeller N

Part #AFH219341

$3,538.37

John Deere

Flap, 4.0M Roll Swath Board

Part #AFH219347

$908.71

John Deere

Flap, 4.0M Impeller Swath Board

Part #AFH219354

$474.79

John Deere

4.0M V10 Conditioner Roll

Part #AFH219369

$4,567.42

John Deere

Support

Part #AFH219521

$138.98

John Deere

Roll, 4.0 Meter Conditioner Urethan

Part #AFH219621

$4,806.27

John Deere

Hood, Impeller - 4.0M

Part #AFH219952

$1,290.87

John Deere

Top Shield With Decals

Part #AFH220541

$539.80

John Deere

Wiring Harness, 500R Rotary Platfor

Part #AFH222478

$415.13

John Deere

Gear Case, Cbar Drive - Primer Pain

Part #AFH224186

$2,687.39

John Deere

Flap, 4.0M Roll Swath Board

Part #AFH224477

$808.79

John Deere

Wiring Harness, R500 Compatibility

Part #BE33034

$192.97

John Deere

Knife Kit, Quick Change Knife

Part #BE33078

$1,532.97

John Deere

Shield

Part #FH339458

$412.48

John Deere

Shield

Part #FH339459

$414.80

John Deere

Guard, LH Curtain

Part #FH339563

$243.00

John Deere

Shield

Part #FH339916

$428.52

John Deere

Deflector, Lhs Roll Fixed Drum Scra

Part #FH342575

$108.00

John Deere

Drum Stripper Lhs - Adjus

Part #FH342576

$111.20

John Deere

Deflector, Lhs Impeller Fixed Drum

Part #FH342655

$111.42

John Deere

Deflector, Bulkhead - LH

Part #FH342663

$158.15

John Deere

Deflector, Bulkhead - LH

Part #FH342664

$89.79

John Deere

Shop all 553 R400 parts →

John Deere R400 parts — frequently asked

How many parts fit the John Deere R400?

Koenig Marketplace lists 553 parts and accessories that fit the John Deere R400, including hardware, sheet metal & body parts, mowing & cutting parts, electrical parts.

Are these genuine John Deere parts for the R400?

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 R400.

How do I find the right part for my R400?

Search by John Deere part number or browse by category above. Every part shown is matched to the John Deere R400 by its compatible-models data.

Can I get R400 parts shipped or pick them up locally?

Both. Koenig ships John Deere R400 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