John Deere 8440 Parts
Looking for John Deere 8440 parts? You've come to the right place. At Wengers, we stock the parts you need to keep your 8440 running strong, so you can get back to work without the long wait times.
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Click a component to view the parts we have in stock for your 8440
View All PartsAir Intake 12
Part #
Description
Condition
Stock
Price
Brakes 12
Part #
Description
Condition
Stock
Price
Cab 6
Part #
Description
Condition
Stock
Price
Clutch 46
Part #
Description
Condition
Stock
Price
R57203
CLUTCH & TRANSFER PUMP DRIVE SHAFT
R57203
CLUTCH & TRANSFER PUMP DRIVE SHAFT
Used
In Stock
$65.00
R66623.A
CLUTCH REGULATING VALVE ASSEMBLY
R66623.A
CLUTCH REGULATING VALVE ASSEMBLY
Used
In Stock
$200.00
R66843.A
PRESSURE PLATE AND DISC ASSEMBLY
R66843.A
PRESSURE PLATE AND DISC ASSEMBLY
Used
Out of Stock
Controls 7
Part #
Description
Condition
Stock
Price
Cooling & Heating System 20
Part #
Description
Condition
Stock
Price
Drawbars / Hitches 3
Part #
Description
Condition
Stock
Price
Electrical System 9
Part #
Description
Condition
Stock
Price
Engine - Diesel 59
Part #
Description
Condition
Stock
Price
AR87699
CAMSHAFT & INJECTION PUMP GEAR SET
AR87699
CAMSHAFT & INJECTION PUMP GEAR SET
Used
In Stock
$245.00
HS3898
GASKET SET - CYLINDER HEAD
HS3898
GASKET SET - CYLINDER HEAD
New After Market
In Stock
$143.80
R32426.A
SPEED - HOUR METER DRIVE GEAR WITH HOUSING
R32426.A
SPEED - HOUR METER DRIVE GEAR WITH HOUSING
Used
In Stock
$100.00
RE29234
SPEED - HOUR METER DRIVE GEAR WITH HOUSING
RE29234
SPEED - HOUR METER DRIVE GEAR WITH HOUSING
Used
Out of Stock
Exhaust 8
Part #
Description
Condition
Stock
Price
Frame Or Chassis 6
Part #
Description
Condition
Stock
Price
Front Axle 4 Wheel Drive 45
Part #
Description
Condition
Stock
Price
R64327.A
PLANET PINION CARRIER ASSEMBLY
R64327.A
PLANET PINION CARRIER ASSEMBLY
Used
In Stock
$675.00
AR85308
U-JOINT GUARD - BOTTOM FRONT HINGE
AR85308
U-JOINT GUARD - BOTTOM FRONT HINGE
Used
Out of Stock
AR70478
U-JOINT GUARD - BOTTOM REAR HINGE
AR70478
U-JOINT GUARD - BOTTOM REAR HINGE
Used
In Stock
$96.00
AR70495
U-JOINT GUARD - CENTER REAR HINGE
AR70495
U-JOINT GUARD - CENTER REAR HINGE
Used
In Stock
$88.00
Front Differential 1
Part #
Description
Condition
Stock
Price
Fuel System 19
Part #
Description
Condition
Stock
Price
Hydraulic Systems 64
Part #
Description
Condition
Stock
Price
R65649
CLUTCH FILTER RELIEF VALVE HOUSING
R65649
CLUTCH FILTER RELIEF VALVE HOUSING
Used
In Stock
$418.00
R49335
CONTROL OPERATING LINK WITH PINS
R49335
CONTROL OPERATING LINK WITH PINS
Used
In Stock
$27.00
AR40676
CONTROL VALVE ADJUSTING CAM ASSEMBLY
AR40676
CONTROL VALVE ADJUSTING CAM ASSEMBLY
Used
In Stock
$22.00
R40915
LOAD SELECTOR OPERATING ARM - UPPER
R40915
LOAD SELECTOR OPERATING ARM - UPPER
Used
In Stock
$26.00
R66889.A
ROCKSHAFT CONTROL VALVE HOUSING ASSEMBLY
R66889.A
ROCKSHAFT CONTROL VALVE HOUSING ASSEMBLY
Used
In Stock
$475.00
R60081
ROCKSHAFT CONTROL VALVE HOUSING COVER
R60081
ROCKSHAFT CONTROL VALVE HOUSING COVER
Used
In Stock
$225.00
R60334
ROCKSHAFT CONTROL VALVE HOUSING COVER
R60334
ROCKSHAFT CONTROL VALVE HOUSING COVER
Used
In Stock
$222.00
R60395
ROCKSHAFT CONTROL VALVE HOUSING COVER
R60395
ROCKSHAFT CONTROL VALVE HOUSING COVER
Used
Out of Stock
R65146
ROCKSHAFT CONTROL VALVE HOUSING COVER
R65146
ROCKSHAFT CONTROL VALVE HOUSING COVER
Used
Out of Stock
Instrument Panel 9
Part #
Description
Condition
Stock
Price
PTO 16
Part #
Description
Condition
Stock
Price
R57310
LOWER PTO DRIVE GEAR BEARING COVER
R57310
LOWER PTO DRIVE GEAR BEARING COVER
Used
In Stock
$20.00
Rear Axle 16
Part #
Description
Condition
Stock
Price
R64345.A
PLANET PINION CARRIER ASSEMBLY
R64345.A
PLANET PINION CARRIER ASSEMBLY
Used
In Stock
$500.00
Rear Differential 16
Part #
Description
Condition
Stock
Price
AR71696.A
DIFFERENTIAL ASSEMBLY WITH RING & PINION
AR71696.A
DIFFERENTIAL ASSEMBLY WITH RING & PINION
Used
Out of Stock
Seat 1
Part #
Description
Condition
Stock
Price
JD47SETFAB
SEAT AND BACK CUSHION SET
JD47SETFAB
SEAT AND BACK CUSHION SET
New After Market
In Stock
$386.85
Sheet Metal 18
Part #
Description
Condition
Stock
Price
Steering 18
Part #
Description
Condition
Stock
Price
R58459
FEEDBACK CYLINDER BRACKET - FRONT
R58459
FEEDBACK CYLINDER BRACKET - FRONT
Used
In Stock
$77.00
R58460
FEEDBACK CYLINDER BRACKET - REAR
R58460
FEEDBACK CYLINDER BRACKET - REAR
Used
In Stock
$66.00
Transmission 93
Part #
Description
Condition
Stock
Price
R66962
DRIVE SHAFT COLLAR - LOW & HIGH RANGE SYNCHRONIZER
R66962
DRIVE SHAFT COLLAR - LOW & HIGH RANGE SYNCHRONIZER
Used
Out of Stock
R63930
DRIVE SHAFT COLLAR - REVERSE RANGE DRIVE
R63930
DRIVE SHAFT COLLAR - REVERSE RANGE DRIVE
Used
In Stock
$80.00
R57947
DRIVE SHAFT COLLAR - REVERSE SHIFTER
R57947
DRIVE SHAFT COLLAR - REVERSE SHIFTER
Used
In Stock
$40.00
R67573
DRIVE SHAFT DRUM - SYNCHRONIZER HIGH RANGE
R67573
DRIVE SHAFT DRUM - SYNCHRONIZER HIGH RANGE
Used
Out of Stock
R67574
DRIVE SHAFT DRUM - SYNCHRONIZER LOW RANGE
R67574
DRIVE SHAFT DRUM - SYNCHRONIZER LOW RANGE
Used
Out of Stock
R61817
DRIVE SHAFT PINION - REVERSE RANGE
R61817
DRIVE SHAFT PINION - REVERSE RANGE
Used
In Stock
$125.00
R57290
DRIVE SHAFT QUILL - FRONT BEARING
R57290
DRIVE SHAFT QUILL - FRONT BEARING
Used
In Stock
$158.00
R57310
LOWER PTO DRIVE GEAR BEARING COVER
R57310
LOWER PTO DRIVE GEAR BEARING COVER
Used
In Stock
$20.00
R66672
PINION SHAFT GEAR - SHIFTER REAR
R66672
PINION SHAFT GEAR - SHIFTER REAR
Used
In Stock
$144.00
R64667
SHIFTER CONTROL LATCH PIN BRACKET
R64667
SHIFTER CONTROL LATCH PIN BRACKET
Used
In Stock
$60.00
R64664
SHIFTER CONTROL LEVER GUIDE PLATE
R64664
SHIFTER CONTROL LEVER GUIDE PLATE
Used
In Stock
$59.00
AR81083
SHIFTER CONTROL LEVER SUPPORT - INNER
AR81083
SHIFTER CONTROL LEVER SUPPORT - INNER
Used
In Stock
$100.00
R64665
SHIFTER CONTROL RANGE SELECTOR QUADRANT
R64665
SHIFTER CONTROL RANGE SELECTOR QUADRANT
Used
In Stock
$158.00
R64666
SHIFTER CONTROL SPEED SELECTOR QUADRANT
R64666
SHIFTER CONTROL SPEED SELECTOR QUADRANT
Used
In Stock
$138.00
AR85308
U-JOINT GUARD - BOTTOM FRONT HINGE
AR85308
U-JOINT GUARD - BOTTOM FRONT HINGE
Used
Out of Stock
AR70478
U-JOINT GUARD - BOTTOM REAR HINGE
AR70478
U-JOINT GUARD - BOTTOM REAR HINGE
Used
In Stock
$96.00
AR70495
U-JOINT GUARD - CENTER REAR HINGE
AR70495
U-JOINT GUARD - CENTER REAR HINGE
Used
In Stock
$88.00
R58057
UPPER INPUT SHAFT OR PTO IDLER SHAFT BEARING COVER
R58057
UPPER INPUT SHAFT OR PTO IDLER SHAFT BEARING COVER
Used
In Stock
$50.00
Wheels & Tires 9
Part #
Description
Condition
Stock
Price