John Deere 4045HSG20 Parts & Accessories

Q: How do I find the right part for my 4045HSG20?

Search by John Deere part number or browse by category on this page. Every part shown is matched to the John Deere 4045HSG20 by its compatible-models data.

481 parts and accessories that fit the John Deere 4045HSG20. Genuine OEM and quality aftermarket, from an authorized John Deere dealer. Ship nationwide or pick up locally.

Shop 4045HSG20 parts by category

Seals, Gaskets & O-rings (127)Hardware (124)Engine Parts (68)Hydraulic Parts (37)Engine Auxiliaries (33)Bearings & Bushings (28)Sheet Metal & Body Parts (18)Drivetrain Parts (12)Electrical Parts (12)Filters (8)Belts & Chains (7)Motors, Pumps & Compressors (5)

Oil Pan

Part #DZ106825

$323.87

John Deere

Fuel Line, Filter to Pump

Part #DZ106394

$45.81

John Deere

Fuel Line, HP - 80KW - 4 Cyl

Part #DZ110443

$238.31

John Deere

Short Block Assembly

Part #DZ120773

$8,549.93

John Deere

Fuel Line, Leak Off Assembly

Part #RE569638

$38.13

John Deere

Turbocharger, Genset 100KVA - Revam

Part #DZ111050

$843.57

John Deere

Fuel Injection Pump, 100KVA, 1500/1

Part #DZ112539

$1,571.85

John Deere

Injection Nozzle

Part #DZ115551

$134.31

John Deere

Oil Line, Turbocharger, Return

Part #DZ117659

$91.93

John Deere

Oil Line, Turbocharger, Supply

Part #DZ117660

$144.04

John Deere

Piston-Liner Kit, Cylinder Liner W/

Part #DZ108592

$247.33

John Deere

Fitting, Leak Off

Part #DZ116961

$12.64

John Deere

Fuel Line, Return Fip, With Hose

Part #DZ117494

$143.78

John Deere

Fuel Pump, Transfer, Hor. Outlet

Part #DZ120068

$65.73

John Deere

Air Intake, Tube Assembly

Part #RE505636

$62.89

John Deere

Spacer, Fan, 4 Holes

Part #DZ108086

$30.00

John Deere

Oil Pan, With Bushing, 4 Cyl

Part #RE503026

$876.98

John Deere

Fuel Line, Transfer Pump to Fuel Fi

Part #RE502777

$51.04

John Deere

Cylinder Head, Cylinder With Valves

Part #RE531088

$2,433.73

John Deere

Cylinder Head 4045PT Tier 3

Part #SE501806

$1,793.79

John Deere Reman

Cover, Thermostat

Part #R516175

$122.96

John Deere

V-Belt, Poly Rib

Part #DZ119059

$48.87

John Deere

Hollow Screw

Part #R530625

$5.30

John Deere

Washer, Sealing

Part #R530622

$0.32

John Deere

Washer, Banjo

Part #R530624

$1.98

John Deere

Hose, 0.05 M, 7.5MM ID X 12.5MM OD

Part #DZ122243

$4.01

John Deere

Tee Fitting, Fuel Leak-Off

Part #RE545632

$4.93

John Deere

Bolt Kit, Cylinder Head Bolt

Part #RE536257

$114.06

John Deere

Cylinder Block, With Bushings

Part #RE557801

$2,466.34

John Deere

Exhaust Manifold

Part #R517017

$570.04

John Deere

Adapter Fitting, Adaptateur, Echapp

Part #R502009

$129.25

John Deere

Cover, Timing Gear, Non Aux Drive

Part #DZ128252

$329.04

John Deere

Fan

Part #AT31819

$248.03

John Deere

Pressure Switch, Oil

Part #RE503867

$70.79

John Deere

Bracket, (S350 Manual Tensioner)

Part #R500333

$64.06

John Deere

Bracket, 350S Manual Tensioner Rear

Part #R522047

$74.13

John Deere

Bracket, 35OS Non Tensioner Front B

Part #R522048

$181.81

John Deere

K-Poly V-Belt

Part #A-590K8

$21.78

A&I Products

Clamp, Fuel Injector

Part #R522965

$13.44

John Deere

Fuel Shut Off Solenoid

Part #VPM5254

$30.05

Vapormatic

Housing, Flywheel

Part #DZ120948

$582.57

John Deere

Fuel Line

Part #RE531804

$23.39

John Deere

Tube, Water Pump By-Pass

Part #R135179

$86.06

John Deere

Bushing

Part #R501018

$78.58

John Deere

Temperature Switch, Temperature Swi

Part #RE503883

$91.78

John Deere

Cover Kit, Timing Gear

Part #RE532938

$1,238.45

John Deere

Alternator

Part #DZ114956

$305.81

John Deere

Alternator

Part #JXDZ114956

$157.77

John Deere Essentials

Solenoid, Fuel Shut-Off, Assembly

Part #RE54064

$108.64

John Deere

Alternator, 12V

Part #A-RE533516

$180.01

A&I Products

Alternator, 12V Iskra

Part #RE533516

$452.48

John Deere

Alternator, Reman

Part #SE502626

$331.73

John Deere Reman

Alternator

Part #SE501387

$319.10

John Deere Reman

Manual Hydraulic Valve, Valve Cross

Part #RE506656

$82.64

John Deere

Wiring Harness, (Bosch Alt)

Part #RE505090

$61.66

John Deere

Adapter Fitting, Oil Pan

Part #RE529802

$17.99

John Deere

Iskra, 3.2KW

Part #RE546868

$827.24

John Deere

Fitting, Assembly, Special

Part #RE59487

$15.09

John Deere

Bracket, Alternator

Part #R504526

$194.55

John Deere

Bracket, Alternator

Part #R500080

$61.25

John Deere

Shop all 481 4045HSG20 parts →

John Deere 4045HSG20 parts — frequently asked

How many parts fit the John Deere 4045HSG20?

Koenig Marketplace lists 481 parts and accessories that fit the John Deere 4045HSG20, including seals, gaskets & o-rings, hardware, engine parts, hydraulic parts.

Are these genuine John Deere parts for the 4045HSG20?

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 4045HSG20.

How do I find the right part for my 4045HSG20?

Search by John Deere part number or browse by category above. Every part shown is matched to the John Deere 4045HSG20 by its compatible-models data.

Can I get 4045HSG20 parts shipped or pick them up locally?

Both. Koenig ships John Deere 4045HSG20 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