John Deereharrow, disk(no series)

John Deere DH4420 - HARROW, DISK

OEM parts breakdown

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The John Deere Frontier DH4420 is a hinge-wheel offset disk harrow.

All DH4420 - HARROW, DISK assemblies by section

Every catalogued assembly group for the John Deere DH4420 - HARROW, DISK. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

8-Bolt Hub & Spindle Assembly (5rp3027033) [A25]

John Deere : Dh4420 - Harrow, Disk : 8-Bolt Hub & Spindle Assembly (5rp3027033) [A25]

5R***B8	Bolt; Hex Bolt 1/2" X 4 - 1/2" Gr. 8, Bolt; 1/2" X 4 -1/2" Gr. 5 1, Bolt; 1/2" X 4 1/2" Gr. 5, Bolt; 1/2" X 4 -1/2" Gr. 8	1
5R***06	Spindle, Spindle; Spindle	1
5R***59	Hub; Hub Assembly, Hub; Assembly, Hub	1
5R***00	Cotter Pin; Cotter Key, 3/16" X 2", Cotter Pin; Cotter Key 3/16" X 2", Cotter Pin; 3/16" X 2", Cotter Pin; 3/16" X 2", Cotter Key, Cotter Pin; 3/16" X 2" 1	1

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8-Bolt Hub Assembly (5rp5005259) [B01]

John Deere : Dh4420 - Harrow, Disk : 8-Bolt Hub Assembly (5rp5005259) [B01]

5R***98	Bearing Cup; (A) Outer Cup, Bearing Cup; (Includes 5rp5005262), Bearing Cup; Outer, Bearing Cup; Outer Cup, Bearing Cup; Outer Cup (A)	1
5R***99	Bearing Cone; Outer, Bearing Cone; Outer Cone, Bearing Cone	1
5R***00	Cap; Dust Cap, Cap	1
5R***01	Seal, Seal; Grease Seal	1

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Bag Of Wrenches (5rp2r810) [B03]

John Deere : Dh4420 - Harrow, Disk : Bag Of Wrenches (5rp2r810) [B03]

5R***81

Nut, Nut; Axle Nut Wrench, Nut; Axle Wrench

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Bearing Assembly (5rp3a605a) [A17]

John Deere : Dh4420 - Harrow, Disk : Bearing Assembly (5rp3a605a) [A17]

5R***B5	Bolt; 1/2" X 1-1/2" Gr. 5, Hex Bolt, Bolt; 1/2"X 1 1/2" Gr. 5, Bolt; 1/2" X 1-1/2" Gr. 5, Bolt; Hex Bolt 1/2" X 1 - 1/2" Gr.5	6
5R***61	Bearing; Bearing Housing, Bearing	1
5R***62	Cap; Bearing Cap, Cap	1
5R***80	Bearing Cone	2

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Box Of Parts (5rp3030758) [B14]

John Deere : Dh4420 - Harrow, Disk : Box Of Parts (5rp3030758) [B14]

5R***B5	Bolt; 3/8" X 3" Gr. 5, Bolt; Hex Bolt 3/8" X 3" Gr. 5	2
5R***B5	Bolt; Hex Bolt 1/2" X 1-1/4" Gr.5, Bolt; 1/2" X 1 -1/4" Gr. 5, Bolt, Bolt; 1/2"X 1-1/4" Gr. 5, Bolt; Hex Bolt 1/2" X 1 - 1/4" Gr .5, Bolt; Hex Bolt 1/2" X 1-1/4" Gr. 5, Bolt; 1/2" X 1-1/4"	2
5R***B5	Bolt; 1/2" X 2-1/2" Gr. 5, Hex Bolt, Bolt; 1/2" X 2 -1/2" Long, Bolt; Hex Bolt 1/2" X 2-1/2" Gr. 5, Bolt; 1/2" X 2-1/2" Gr. 5, Bolt; Hex Nut 1/2" X 2-1/2" Gr. 5, Bolt; 1/2" X 2 1/2" Gr., Bolt; ½" X 2-1/2" Gr. 5, Bolt	1
5R***B8	Bolt; 1/2" X 4" Gr. 8, Bolt; Hex Bolt 1/2" X 4" Gr. 8	5

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Drawbar Assembly (5rp3008209) [A08]

John Deere : Dh4420 - Harrow, Disk : Drawbar Assembly (5rp3008209) [A08]

5R***B5	Bolt; Hex Bolt 1/4" X 8" Gr. 5, Bolt; 1-1/4" X 8", Bolt; 1-1/4" X 8" Gr. 5, Hex, Bolt; 1-1/4" X 8" Gr. 5, Bolt; 1 -1/4", Bolt; 1 1/4" X 8" Gr. 5, Bolt; 1-1/4" X 8" Gr. 5, Hex Bolt	3
5R***B5	Bolt; 1-1/2" X 8" Gr. 5, Hex, Bolt; 1 -1/2" X 8" Gr .5, Bolt; 1 -1/2" X 8", Bolt; 1-1/2" X 8" Gr. 5, Bolt; Hex Bolt 1 -1/2" X 8" Gr. 5, Bolt; 1 1/2" X 8" Gr. 5	1
5R***B5	Bolt; Hex Bolt 1 -3/4" X 8 -1/2" Gr. 5, Bolt; 1-3/4" X 8-1/2" Gr. 5	2
5R***18	Drawbar; Drawbar Assembly, Drawbar; Drawbar Assembly (Includes Items Marked With (A))	1

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Dual Transport Assembly (5rp3005834a) [A24]

John Deere : Dh4420 - Harrow, Disk : Dual Transport Assembly (5rp3005834a) [A24]

5R***33	Hub; Hub And Spindle Assembly, Hub; Hub & Spindle, Hub, Hub; Hub & Spindle Assembly	2
5R***11	Wheel; Transportassembly, L.H.,Single, Wheel; (Includes Part Marked With (A)) Dual Wheel Transport, Wheel; Dual Wheel Transport	1
5R***ZK	Fitting; Transport Lock Pin, Fitting; 1/4", Fitting; Grease Fitting, 1/4", Fitting; Grease Fitting 1/4", Fitting, Fitting; Grease Fitting	2
5R***1H	Bushing; (A), Bushing, Bushing; Bushing, Pressed In	2

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Five Blade Gang Assembly (5rp3030741) [A14]

John Deere : Dh4420 - Harrow, Disk : Five Blade Gang Assembly (5rp3030741) [A14]

5R***B5	Bolt; 3/4" X 2" Gr.5, Hex Bolt, Bolt; 3/4" X 2", Hex Bolt, Bolt; (3/4" X 2 Grade 5), Bolt; 3/4" X 2" Gr. 5, Hex Bolt, Bolt; 3/4" X 2" Gr.5, Bolt; Hex Bolt 3/4" X 2" Gr.5, Bolt; 3/4" X 2" Gr. 5	2
5R***B8	Bolt; Hex Bolt 1" X 9" Gr.8	4
5R***69	Washer; Flat Washer, Washer; Flatwasher, Washer	4
5R***37	Plate; Bearing Wear Plate, Plate; Bearing Wear Plate(Optional)	2

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Five Blade Tapered Gang Assembly (5rp3030743) [A16]

John Deere : Dh4420 - Harrow, Disk : Five Blade Tapered Gang Assembly (5rp3030743) [A16]

5R***B5	Bolt; 3/4" X 2" Gr.5, Hex Bolt, Bolt; 3/4" X 2", Hex Bolt, Bolt; (3/4" X 2 Grade 5), Bolt; 3/4" X 2" Gr. 5, Hex Bolt, Bolt; 3/4" X 2" Gr.5, Bolt; Hex Bolt 3/4" X 2" Gr.5, Bolt; 3/4" X 2" Gr. 5	2
5R***B8	Bolt; Hex Bolt 1" X 9" Gr.8	4
5R***69	Washer; Flat Washer, Washer; Flatwasher, Washer	4
5R***37	Plate; Bearing Wear Plate, Plate; Bearing Wear Plate(Optional)	2

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Four Blade Gang Assembly (5rp3030740) [A15]

John Deere : Dh4420 - Harrow, Disk : Four Blade Gang Assembly (5rp3030740) [A15]

5R***B5	Bolt; 3/4" X 2" Gr.5, Hex Bolt, Bolt; 3/4" X 2", Hex Bolt, Bolt; (3/4" X 2 Grade 5), Bolt; 3/4" X 2" Gr. 5, Hex Bolt, Bolt; 3/4" X 2" Gr.5, Bolt; Hex Bolt 3/4" X 2" Gr.5, Bolt; 3/4" X 2" Gr. 5	2
5R***B8	Bolt; Hex Bolt 1" X 9" Gr.8	4
5R***69	Washer; Flat Washer, Washer; Flatwasher, Washer	4
5R***37	Plate; Bearing Wear Plate, Plate; Bearing Wear Plate(Optional)	2

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Front Gang Carrier (5rp3030729) [A11]

John Deere : Dh4420 - Harrow, Disk : Front Gang Carrier (5rp3030729) [A11]

5R***2H

Bushing

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Front Gang Carrier Complete (5rp3030745) [A10]

John Deere : Dh4420 - Harrow, Disk : Front Gang Carrier Complete (5rp3030745) [A10]

5R***B5	Bolt; Hex Bolt 3/4", Bolt; Hex Bolt 3/4" X 2-1/2" Gr. 5	6
5R***36	Bar; Scraper Bar	2
5R***40	Gang; Gang Assembly 4 Blade	1
5R***41	Blade; Gang Assembly 5 Blade, Blade; Gang Assembly 5 Disk Blade	2

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Front Pivot Hinge [A20]

John Deere : Dh4420 - Harrow, Disk : Front Pivot Hinge [A20]

5R***83	Bushing; Bushing Shoulder (A), Bushing; Shoulder, Bushing; Shoulder Bushing, Bushing, Bushing; Bushing, Shoulder	2
5R***70	Hinge; Front, Hinge, Hinge; Front Pivot Hinge, Hinge; Pivot Hinge	0

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Front Stabilizer Assembly (5rp3007432a) [A18]

John Deere : Dh4420 - Harrow, Disk : Front Stabilizer Assembly (5rp3007432a) [A18]

5R***83	Bushing; Bushing Shoulder (A), Bushing; Shoulder, Bushing; Shoulder Bushing, Bushing, Bushing; Bushing, Shoulder	4
5R***2A	Front Carriage; Front Stabilizer, Front Carriage; Front Stabilizer Assembly, Front Carriage, Front Carriage; Front	0
5R***2H	Bushing, Bushing; Pressed In	2

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Front Stabilizer Hinge [A21]

John Deere : Dh4420 - Harrow, Disk : Front Stabilizer Hinge [A21]

5R***13

Hinge; Front Stabilizer Hinge

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Hydraulic Cylinder - 4" X 32" (5rp5002790) [B09]

John Deere : Dh4420 - Harrow, Disk : Hydraulic Cylinder - 4" X 32" (5rp5002790) [B09]

5R***51	Bushing	2
5R***42	Plug; Shipping Plug Plastic	2
5R***32	Fitting; Grease Fitting	2
5R***41	Piston	1

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Hydraulic Cylinder - 5" X 12" (5rp5005125) [B08]

John Deere : Dh4420 - Harrow, Disk : Hydraulic Cylinder - 5" X 12" (5rp5005125) [B08]

5R***54	Plug, Plug; Boss Plug, Steel	4
5R***70	Nut; Locknut, Nut	1
5R***25	Bushing, Bushing; Seal Kit	4
5R***13	Case, Case; Case Assembly	1

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Hydraulic Cylinder 3" X 6" (5rp5005277) [B10]

John Deere : Dh4420 - Harrow, Disk : Hydraulic Cylinder 3" X 6" (5rp5005277) [B10]

5R***2A	Tube, Tube; Tube Assembly	1
5R***2D	Rod; Rod Gland	1
5R***3B	Rod; Cylinder Rod,1-1/4", Rod; Cylinder Rod 1 - 1/4"	1
5R***2C	Piston	1

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Hydraulic Group Assembly (5rp3030757) [B06]

John Deere : Dh4420 - Harrow, Disk : Hydraulic Group Assembly (5rp3030757) [B06]

5R***B5	Bolt; 5/16" X 2 -1/2" Gr. 5, Bolt; Hex Bolt 5/16" X 2 - 1/2" Gr. 5	2
5R***B5	Bolt; Hex Bolt 3/8" X 1" Gr. 5, Bolt; 3/8" X 1" Long, Bolt; Hex, 3/8" X 3" Gr. 5, Bolt; 38" X1" Gr. 5, Bolt; 3/8" X 1" Gr. 5, Bolt; 3/8" X 1" Gr .5, Bolt; Hex Bolt, 3/8" X 1" Gr. 5, Bolt; Hex Bolt 3/8" X 1" Gr.5, Bolt; Hex, 3/8"X 1" Gr. 5	9
5R***B5	Bolt; 3/8" X 3" Gr. 5, Bolt; Hex Bolt 3/8" X 3" Gr. 5	2
5R***B5	Bolt; Hex Bolt 1/2" X 1-1/4" Gr.5, Bolt; 1/2" X 1 -1/4" Gr. 5, Bolt, Bolt; 1/2"X 1-1/4" Gr. 5, Bolt; Hex Bolt 1/2" X 1 - 1/4" Gr .5, Bolt; Hex Bolt 1/2" X 1-1/4" Gr. 5, Bolt; 1/2" X 1-1/4"	2

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Hydraulic Hose Holder (5rpaw3270) [B11]

John Deere : Dh4420 - Harrow, Disk : Hydraulic Hose Holder (5rpaw3270) [B11]

5R***27	Mast; Hose Holder Mast, Mast, Mast; Hose Holder (Mast)	1
5R***00	Lock Washer; 1", Lock Washer; Lock Washer, 1", Lock Washer, Lock Washer; Lock Washer 1"	1
5R***00	Nut; Hex Nut 1", Nut; 1", Nut, Nut; 1", Hex Nut	1

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Latch Support Assembly (5rp3007440) [B04]

John Deere : Dh4420 - Harrow, Disk : Latch Support Assembly (5rp3007440) [B04]

5R***B5	Bolt; Hex Bolt 1/2" X 4" Gr. 5, Bolt; 1/2" X 4" Gr. 5, Bolt, Bolt; Hex Bolt 1/2" X 4" Gr.5	3
5R***B5	Bolt; 1 -1/4" X 2-1/2" Gr. 5, Bolt; Hex Bolt 1 - 1/4" X 2 - 1/2" Gr. 5	4
5R***04	Bearing; Transport Lock Pin	1
5R***86	Shift Collar; Latch Collar	1

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Leveling Control Group (5rp3006485) [A23]

John Deere : Dh4420 - Harrow, Disk : Leveling Control Group (5rp3006485) [A23]

5R***B5	Bolt; 1" X 8", Hex Bolt, Bolt; 1" X 8" Gr.5, Hex Bolt, Bolt; Hex Bolt 1" X 8" Gr 0.5, Bolt; 1" X 8" Gr. 5, Bolt; Hex Bolt 1" X 8" Gr. 5	1
5R***B5	Bolt; Hex Bolt 1-1/4" X 8 -1/2" Gr. 5, Bolt; 1-1/4" X 8" Gr. 5, Bolt; 1 1/4" X 8-1/2" Gr. 5, Bolt; Hex Bolt 1 - 1/4" X 8" Gr. 5	2
5R***02	Anchor; Cylinder Anchor	1
5R***06	Pivot; Cylinder Pivot Ear, Pivot; Pivot Bracket	1

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Light Group Assembly (5rp3029470) [B12]

John Deere : Dh4420 - Harrow, Disk : Light Group Assembly (5rp3029470) [B12]

5R***B5	Bolt; 1/4" X 1 -1/2", Hex Bolt, Bolt; 1/4" X 1 -1/2" Gr. 5, Bolt; 1/4" X 1-1/2" Gr. 5, Bolt; Hex Bolt 1/4" X 1 - 1/2", Bolt; Hex, 1/4"X 1-1/2"Gr. 5	8
5R***B5	Bolt; Hex Bolt 3/8" X 3/4" Gr.5, Bolt; 3/8" X 3/4" Gr. 5, Bolt; 3/8" X 3/4", Hex Bolt	2
5R***B5	Bolt; Hex Bolt 3/8" X 1" Gr. 5, Bolt; 3/8" X 1" Long, Bolt; Hex, 3/8" X 3" Gr. 5, Bolt; 38" X1" Gr. 5, Bolt; 3/8" X 1" Gr. 5, Bolt; 3/8" X 1" Gr .5, Bolt; Hex Bolt, 3/8" X 1" Gr. 5, Bolt; Hex Bolt 3/8" X 1" Gr.5, Bolt; Hex, 3/8"X 1" Gr. 5	8
5R***B5	Bolt; 3/8" X 1 -1/4" Gr. 5, Bolt; 3/8" X 1-1/4" Gr. 5, Bolt; Hex Bolt 3/8" X 1 - 1/4" Gr .5, Bolt; 3/8" X 1 -1/4", Hex Bolt, Bolt; 3/8" X 1 1/4" Gr. 5	2

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Main Frame Assembly (5rp3030747) [A06]

John Deere : Dh4420 - Harrow, Disk : Main Frame Assembly (5rp3030747) [A06]

5R***B5	Bolt; 3/8" X 2-1/2" Gr. 5, Hex Bolt, Bolt; 3/8" X 2-1/2" Gr. 5, Bolt; Hex Bolt 3/8" X 2-1/2" Gr.5	2
5R***B5	Bolt; Hex Bolt 1/2" X 1-1/4" Gr.5, Bolt; 1/2" X 1 -1/4" Gr. 5, Bolt, Bolt; 1/2"X 1-1/4" Gr. 5, Bolt; Hex Bolt 1/2" X 1 - 1/4" Gr .5, Bolt; Hex Bolt 1/2" X 1-1/4" Gr. 5, Bolt; 1/2" X 1-1/4"	2
5R***B5	Bolt; 1/2" X 2-1/2" Gr. 5, Hex Bolt, Bolt; 1/2" X 2 -1/2" Long, Bolt; Hex Bolt 1/2" X 2-1/2" Gr. 5, Bolt; 1/2" X 2-1/2" Gr. 5, Bolt; Hex Nut 1/2" X 2-1/2" Gr. 5, Bolt; 1/2" X 2 1/2" Gr., Bolt; ½" X 2-1/2" Gr. 5, Bolt	1
5R***B5	Bolt; Hex Bolt 1/2" X 4" Gr. 5, Bolt; 1/2" X 4" Gr. 5, Bolt, Bolt; Hex Bolt 1/2" X 4" Gr.5	5

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Offset Bar Assembly (5rp3030744) [A09]

John Deere : Dh4420 - Harrow, Disk : Offset Bar Assembly (5rp3030744) [A09]

5R***B5	Bolt; Hex Bolt 1 -1/2" X 6 -1/2" Gr. 5, Bolt; Hex Bolt 1 1/2" X 6 1/2" Gr. 5, Bolt; 1-1/2" X 6-1/2" Gr. 5, Hex Bolt, Bolt; 1 -1/2" X 6-1/2" Gr. 5, Bolt; 1-1/2" X 6-1/2" Gr.5	4
5R***18	Bar; Offset Bar	1
5R***0H	Bushing; Bushing, Bushing	8
5R***50	Washer, Washer; 1-1/2", Washer; Flat Washer 1 1/2", Washer; Flat Washer 1-1/2", Washer; Flat Washer 1 -1/2", Washer; Flat Washer 1 - 1/2", Washer; Flat Washer, 1-1/2"	8

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Rear Gang Carrier (5rp3030735) [A13]

John Deere : Dh4420 - Harrow, Disk : Rear Gang Carrier (5rp3030735) [A13]

5R***7H

Bushing

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Rear Gang Carrier Complete (5rp3030746) [A12]

John Deere : Dh4420 - Harrow, Disk : Rear Gang Carrier Complete (5rp3030746) [A12]

5R***B5	Bolt; Hex Bolt 3/4", Bolt; Hex Bolt 3/4" X 2-1/2" Gr. 5	6
5R***37	Bar; Scraper Bar	3
5R***41	Blade; Gang Assembly 5 Blade, Blade; Gang Assembly 5 Disk Blade	2
5R***43	Gang; Gang Assembly 5	1

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Rear Hitch Assembly - Optional (5rp3030756) [B16]

John Deere : Dh4420 - Harrow, Disk : Rear Hitch Assembly - Optional (5rp3030756) [B16]

5R***B5	Bolt; Hex Bolt 7/8" X 3" Gr.5	2
5R***B5	Bolt; Hex Bolt 1" X 2" Gr.5	8
5R***55	Frame; Rear Hitch Frame	1
5R***30	Hitch, Hitch; Hitch	1

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Rear Stabilizer Assembly (5rp3007430) [A19]

John Deere : Dh4420 - Harrow, Disk : Rear Stabilizer Assembly (5rp3007430) [A19]

5R***83	Bushing; Bushing Shoulder (A), Bushing; Shoulder, Bushing; Shoulder Bushing, Bushing, Bushing; Bushing, Shoulder	4
5R***18	Bushing; Bushing, Shoulder, Bushing; Shoulder, Bushing; Shoulder Bushing	2
5R***30	Rear Carriage; Rear, Rear Carriage; Rear Stabilizer, Rear Carriage; Rear Stabilizer Assembly	0
5R***2H	Bushing, Bushing; Pressed In	2

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Safety Decals & Miscellaneous (5rp3032331a) [B17]

John Deere : Dh4420 - Harrow, Disk : Safety Decals & Miscellaneous (5rp3032331a) [B17]

5R***B5	Bolt; 5/16" X 1/2", Hex Bolt, Bolt; Hex Bolt 5/16" X 1/2", Bolt; 5/16" X 1/2" Gr. 5, Bolt; Hex, 5/16"X 1/2"Gr. 5	2
5R***16	Label; Caution Decal, Label; Caution	1
5R***17	Label; Warning Decal	2
5R***19	Label; Danger Decal, Label	4

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Scraper Assemblies (5rp3031879 & 5rp3031880) [A22]

John Deere : Dh4420 - Harrow, Disk : Scraper Assemblies (5rp3031879 & 5rp3031880) [A22]

5R***76	Scraper; Front Scraper	1
5R***78	Scraper; Rear Scraper	1
5R***79	Scraper; Front, Scraper; Front Scraper Assembly	0
5R***80	Scraper; Rear, Scraper; Scraper Assembly Rear 3/4"	0

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Tire & Wheel Assembly (5rp3005232) [B02]

John Deere : Dh4420 - Harrow, Disk : Tire & Wheel Assembly (5rp3005232) [B02]

5R***27	Wheel	1
5R***66	Tire; Tire, 12.5l - 16, 12 Ply, Tire; 12.5l - 16, Tire; Tire 12.5l - 16 12ply	1
5R***43	Tire Valve Stem; Valve Stem	1

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