Part Finder
Or
Search Product Or Part Number
Advanced Search

CUSTOMER SUPPORT 717-866-8424

Toggle Nav
Menu
Account
Cart

John Deere 6420 Parts

Looking for John Deere 6420 parts? You've come to the right place. At Wengers, we stock the parts you need to keep your 6420 running strong, so you can get back to work without the long wait times.

Search by Part Number

Shop Parts by Component

Click a component to view the parts we have in stock for your 6420

View All Parts
Air Intake 6
Part #
Description
Condition
Stock
Price
L76267
AIR DUCT
Used
In Stock
$121.00
L79264
AIR DUCT
Used
In Stock
$26.00
AL150286
AIR FILTER HOUSING
Used
In Stock
$82.00
L151979
HANDLE - AIR CLEANER
Used
In Stock
$24.00
L151979
HANDLE - AIR CLEANER
New After Market
In Stock
$29.80
AL155869
INTERCOOLER FLANGE
Used
In Stock
$20.00
Brakes 6
Part #
Description
Condition
Stock
Price
RE222770
BRAKE ACTUATING DISC
Used
In Stock
$36.00
AL168781
BRAKE DISC
Used
In Stock
$86.00
AL168782
BRAKE DISC
Used
In Stock
$110.00
AL224567
BRAKE VALVE
Used
In Stock
$600.00
R171012
PLANETARY BRAKE HUB
Used
Out of Stock
R167674
REVERSE BRAKE HOUSING
Used
In Stock
$439.00
Clutch 10
Part #
Description
Condition
Stock
Price
AL159100/N
CLUTCH
New
In Stock
$1,800.00
AL158036
CLUTCH CONTROL WIRING HARNESS
Used
In Stock
$55.00
RE239058
CLUTCH DISC
Used
In Stock
$14.00
R219974
CLUTCH DRUM PIN
Used
In Stock
$5.00
AL150176
CLUTCH PEDAL
Used
Out of Stock
L153777
CLUTCH PEDAL BRACKET
Used
Out of Stock
R153300.A
DIRECT DRIVE CLUTCH
Used
Out of Stock
AL161334
DISK - CLUTCH DRUM
Used
Out of Stock
R517174
FLYWHEEL HOUSING
Used
In Stock
$464.00
R519313
FLYWHEEL HOUSING
Used
In Stock
$427.00
Controls 9
Part #
Description
Condition
Stock
Price
AL159961
BASIC CONTROL UNIT
Used
In Stock
$787.00
AL150176
CLUTCH PEDAL
Used
Out of Stock
L153777
CLUTCH PEDAL BRACKET
Used
Out of Stock
RE518178
ENGINE CONTROLLER
Used
Out of Stock
R117611.A
PTO CONTROL KNOB ASY
Used
In Stock
$9.00
RE169008
PTO SWITCH
Used
In Stock
$42.00
RE195274
ROCKSHAFT CONTROL
Used
Out of Stock
L172183
STEERING WHEEL
Used
In Stock
$69.00
AL160450
TRANS CONTROL MODULE
Used
Out of Stock
Cooling & Heating System 10
Part #
Description
Condition
Stock
Price
AL155873
FAN CLUTCH
Used
Out of Stock
FILTERBOX ASY COVER
AL150309
FILTERBOX ASY COVER
AL150309
FILTERBOX ASY COVER
Used
Out of Stock
L155548
GUARD - A/C COMPRESSOR
Used
In Stock
$19.00
AL155869
INTERCOOLER FLANGE
Used
In Stock
$20.00
L165802/N
LOWER RADIATOR HOSE
New
In Stock
$30.00
L207042/N
LOWER RADIATOR HOSE
New
In Stock
$32.00
AL167433/N
RADIATOR SHROUD
New
In Stock
$210.00
AL220792
RECEIVER DRIER
Used
In Stock
$57.00
R501314
THERMOSTAT HOUSING TUBE
Used
In Stock
$31.00
WATER PUMP
RE505980/N
WATER PUMP
RE505980/N
WATER PUMP
New
In Stock
$88.61
Drawbars / Hitches 8
Part #
Description
Condition
Stock
Price
L60404
DRAWBAR PIN
Used
In Stock
$5.00
L77331
DRAWBAR PIN BUSHING
Used
Out of Stock
L77331
DRAWBAR PIN BUSHING
New After Market
In Stock
$12.00
L115371
HITCH CONTROL PANEL
Used
In Stock
$33.00
L157535
LIFT ARM - L.H.
Used
In Stock
$200.00
LIFT ARM - R.H.
L157536
LIFT ARM - R.H.
L157536
LIFT ARM - R.H.
Used
In Stock
$387.00
L156830
LIFT LINK
Used
Out of Stock
RE195274
ROCKSHAFT CONTROL
Used
Out of Stock
Electrical System 7
Part #
Description
Condition
Stock
Price
AL116548
ADAPTER WIRING HARNESS
Used
In Stock
$30.00
L156268
BATTERY HOLDER
Used
In Stock
$16.00
L156270
BATTERY HOOK BOLT
Used
In Stock
$7.50
AL160636
ENGINE WIRE HARNESS
Used
Out of Stock
L114000
PLATE, WIPER SWITCH
Used
In Stock
$11.00
L113569
SWITCH PLATE
Used
In Stock
$41.00
RE223448
TAIL LIGHT
Used
In Stock
$35.00
Engine - Diesel 9
Part #
Description
Condition
Stock
Price
R516320/N
CRANK PULLEY
New
In Stock
$370.00
R503715
CRANKSHAFT
Used
In Stock
$618.00
RE518178
ENGINE CONTROLLER
Used
Out of Stock
OIL COOLER WITH GASKET
RE59296/N
OIL COOLER WITH GASKET
RE59296/N
OIL COOLER WITH GASKET
New
In Stock
$100.50
OIL PUMP
RE504914
OIL PUMP
RE504914
OIL PUMP
Used
In Stock
$106.00
OIL PUMP
RE504914
OIL PUMP
RE504914
OIL PUMP
New
In Stock
$160.00
R504209
PUSH ROD
Used
In Stock
$7.00
SHORT BLOCK ASSEMBLY
RE520378
SHORT BLOCK ASSEMBLY
RE520378
SHORT BLOCK ASSEMBLY
Engine Rebuild
Out of Stock
TIMING GEAR COVER
R504725
TIMING GEAR COVER
R504725
TIMING GEAR COVER
Used
Out of Stock
Exhaust 6
Part #
Description
Condition
Stock
Price
L150170
EXHAUST GUARD
Used
Out of Stock
L156740
EXHAUST GUARD
Used
In Stock
$29.00
AL170250/N
EXHAUST PIPE
New
Out of Stock
AL153067
MUFFLER
Used
Out of Stock
L155926
MUFFLER BRACKET
Used
In Stock
$7.50
L165149
MUFFLER HEAT SHIELD
Used
In Stock
$73.00
Frame Or Chassis 1
Part #
Description
Condition
Stock
Price
L165048
FRAME BUSHING
Used
In Stock
$87.00
Fuel System 5
Part #
Description
Condition
Stock
Price
RE509530/N
FUEL PUMP
New
In Stock
$85.00
AL113617
FUEL TANK
Reconditioned
In Stock
$650.00
RE19797
INJECTION LINE CLAMP
Used
Out of Stock
RE19799
INJECTION LINE CLAMP
Used
In Stock
$16.00
R505472
INJECTION PUMP GEAR
Used
In Stock
$165.00
Hydraulic Systems 11
Part #
Description
Condition
Stock
Price
L77331
DRAWBAR PIN BUSHING
New After Market
In Stock
$12.00
L156925
HYD FILTER RETAINER
Used
In Stock
$26.00
AL161082/N
HYD HOSE, CHARGE PUMP
New
In Stock
$120.00
HYD PUMP REGULATOR
AL158423
HYD PUMP REGULATOR
AL158423
HYD PUMP REGULATOR
Used
In Stock
$868.00
HYDRAULIC HOSE
AL157754
HYDRAULIC HOSE
AL157754
HYDRAULIC HOSE
Used
In Stock
$86.00
HYDRAULIC OIL FILTER HEAD
AL152973
HYDRAULIC OIL FILTER HEAD
AL152973
HYDRAULIC OIL FILTER HEAD
Used
Out of Stock
AL161043/N
HYDRAULIC PUMP
New
In Stock
$1,240.00
L157535
LIFT ARM - L.H.
Used
In Stock
$200.00
LIFT ARM - R.H.
L157536
LIFT ARM - R.H.
L157536
LIFT ARM - R.H.
Used
In Stock
$387.00
RE195274
ROCKSHAFT CONTROL
Used
Out of Stock
SELECTIVE CONTROL VALVE - 100 SERIES
AL75841
SELECTIVE CONTROL VALVE - 100 SERIES
AL75841
SELECTIVE CONTROL VALVE - 100 SERIES
Used
In Stock
$250.00
Instrument Panel 2
Part #
Description
Condition
Stock
Price
L151697
HOUSING - INSTRUMENT PANEL
Used
Out of Stock
AL200757
INSTRUMENT PANEL
Used
Out of Stock
PTO 6
Part #
Description
Condition
Stock
Price
DRIVE SHAFT
L114933
DRIVE SHAFT
L114933
DRIVE SHAFT
Used
In Stock
$73.00
R117611.A
PTO CONTROL KNOB ASY
Used
In Stock
$9.00
PTO COUNTERSHAFT
L156912
PTO COUNTERSHAFT
L156912
PTO COUNTERSHAFT
Used
In Stock
$490.00
L166528.A
PTO HOUSING - COMPLETE
Used
In Stock
$2,500.00
L156978
PTO SHAFT
Used
In Stock
$111.00
RE169008
PTO SWITCH
Used
In Stock
$42.00
Rear Axle 2
Part #
Description
Condition
Stock
Price
L156027
REAR AXLE
Used
In Stock
$550.00
L156914
REAR AXLE WASHER
Used
In Stock
$42.00
Rear Differential 1
Part #
Description
Condition
Stock
Price
DIFF HSG RH
L206105
DIFF HSG RH
L206105
DIFF HSG RH
Used
In Stock
$550.00
Sheet Metal 3
Part #
Description
Condition
Stock
Price
L172665
FENDER BASE
Used
Out of Stock
AR97520
HOOD
Used
In Stock
$280.00
AL159582
HOOD SUPPORT PLATE
Used
In Stock
$125.00
Steering 5
Part #
Description
Condition
Stock
Price
AL157856
ISOLATOR, STEERING COUPLING
Used
In Stock
$9.00
AL217138
STEERING COLUMN
Used
In Stock
$467.00
L172183
STEERING WHEEL
Used
In Stock
$69.00
AL168711
TIE ROD END
Used
In Stock
$52.00
AL161363
TIE ROD FWD
Used
In Stock
$220.00
Transmission 22
Part #
Description
Condition
Stock
Price
L116450
A-RANGE GEAR
Used
In Stock
$320.00
BEARING HOUSING
L215006
BEARING HOUSING
L215006
BEARING HOUSING
Used
In Stock
$146.00
L115864
C-RANGE GEAR
Used
In Stock
$323.00
RE239058
CLUTCH DISC
Used
In Stock
$14.00
R219974
CLUTCH DRUM PIN
Used
In Stock
$5.00
R153300.A
DIRECT DRIVE CLUTCH
Used
Out of Stock
AL161334
DISK - CLUTCH DRUM
Used
Out of Stock
DRIVE SHAFT IDLER HSG
AL156649
DRIVE SHAFT IDLER HSG
AL156649
DRIVE SHAFT IDLER HSG
Used
In Stock
$499.00
R517174
FLYWHEEL HOUSING
Used
In Stock
$464.00
R519313
FLYWHEEL HOUSING
Used
In Stock
$427.00
L154950
HOUSING - RANGE TRANS
Used
In Stock
$690.00
IDLER GEAR
L156010
IDLER GEAR
L156010
IDLER GEAR
Used
In Stock
$672.00
IDLER GEAR
L157184
IDLER GEAR
L157184
IDLER GEAR
Used
In Stock
$497.00
R150457
INPUT PLANET PINION GEAR
Used
In Stock
$281.00
PINION GEAR
L155894
PINION GEAR
L155894
PINION GEAR
Used
In Stock
$284.00
L166553
RANGE TRANSMISSION HOUSING
Used
In Stock
$698.00
AL166149
SHIELD - POWRQUAD TRANSMISSION
Used
Out of Stock
AL160450
TRANS CONTROL MODULE
Used
Out of Stock
TRANS COVER VALVE
R228262
TRANS COVER VALVE
R228262
TRANS COVER VALVE
Used
Out of Stock
R181271
TRANSMISSION FRONT COVER
Used
In Stock
$72.00
L116451
TRANSMISSION GEAR
Used
In Stock
$313.00
TRANSMISSION SHAFT
L153401
TRANSMISSION SHAFT
L153401
TRANSMISSION SHAFT
Used
In Stock
$823.00
Wheels & Tires 5
Part #
Description
Condition
Stock
Price
L115347
FRONT WHEEL SPACER
Used
In Stock
$12.00
L154510
REAR WHEEL DISH
Used
Out of Stock
L116668
REAR WHEEL DISK
Used
In Stock
$119.00
15X30FL
WHEEL
Used
In Stock
$300.00
L154511
WHEEL CENTER
Used
In Stock
$375.00
© 2026 Wengers of Myerstown.