John Deere 4320 Tractor Parts
4320 parts and accessories
The John Deere 4320 was a popular and reliable utility tractor produced from 1971 to 1972. Known for its powerful diesel engine, delivering around 86 horsepower, and a PTO horsepower of approximately 70, the 4320 provided farmers with the muscle needed for various field tasks. Its robust build and efficient performance made it a workhorse on many farms.
The John Deere 4320 tractor was part of the 'Generation II' series, manufactured in Waterloo, Iowa from 1971 to 1972. It was designed as a versatile utility tractor suitable for a wide range of agricultural operations. The 4320 is powered by a John Deere 404 cubic inch (6.6L) 4-cylinder diesel engine, producing around 86 engine horsepower. The transmission options included a Syncro Range transmission with 8 forward and 2 reverse gears, or an optional Power Shift transmission offering 8 forward and 4 reverse gears. The PTO horsepower is approximately 70, available in both 540 and 1000 RPM configurations. The hydraulic system had a capacity of around 27 GPM powering two remote valves. It features a Category II 3-point hitch, providing a lift capacity of roughly 4,200 lbs. Farmers commonly used the 4320 for tasks such as row crop cultivation, hay baling, livestock feeding, and light tillage work. The 4320 stands out from other models in the lineup due to its larger frame size and greater horsepower compared to smaller utility tractors like the John Deere 3020, while remaining more compact and maneuverable than larger row crop tractors like the John Deere 4020.
Specifications
| Engine | John Deere 404D 86 HP Diesel |
|---|---|
| PTO HP | 70 HP @ 540/1000 RPM |
| Transmission | Syncro Range, 8F/2R or Power Shift, 8F/4R |
| Hydraulics | 27 GPM, 2 remotes |
| 3-Point Hitch | Category II, 4200 lbs |
| Fuel Capacity | 29 gallons |
| Weight | 8,040 lbs |
| Years Produced | 1971-1972 |
Maintenance Tips
- Engine Oil & Filter: Change engine oil and filter every 250 hours using the recommended oil type (e.g., SAE 15W-40) and a quality replacement filter. This ensures proper engine lubrication and prevents premature wear.
- Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filter every 500 hours or annually. Use John Deere Hy-Gard or an equivalent hydraulic fluid to maintain optimal hydraulic performance and protect against contamination.
- Fuel System: Drain the fuel sediment bowl regularly to remove water and debris. Replace the fuel filter annually or every 500 hours to prevent fuel system clogging and ensure efficient engine operation. Consider using a fuel stabilizer during seasonal storage to prevent fuel degradation.
History & Background
Introduced in 1971 as part of John Deere's 'Generation II' tractor line, the 4320 aimed to provide farmers with a versatile and powerful utility tractor. There were no major redesigns during its short production run. The John Deere 4320 is remembered as a dependable and capable tractor, contributing to increased productivity on farms across the country.
Frequently Asked Questions
What engine is in the John Deere 4320?
The John Deere 4320 is equipped with a John Deere 404 cubic inch (6.6L) 4-cylinder diesel engine, producing approximately 86 horsepower.
What is the PTO horsepower on a 4320?
The PTO horsepower on the John Deere 4320 is approximately 70 HP, and it supports both 540 and 1000 RPM PTO speeds.
What oil filter fits the 4320?
Common oil filter options for the John Deere 4320 include John Deere part number AR51708, or cross-references like Fram PH2870A, or Wix 51794.
What are common parts needed for the 4320?
Common parts needed for the John Deere 4320 include engine oil filters, fuel filters, hydraulic filters, belts (fan belt, alternator belt), hydraulic cylinder seal kits, steering components (tie rod ends, steering cylinder seals), and clutch discs.

IK17892 - In Frame Engine Overhaul Kit
SKU: IK17892
7 in stock

AT344T - Front Crankshaft and PTO Seal
SKU: AT344T
18 in stock

AT20911 - Fuel Cap
SKU: AT20911
320 in stock

AR77752 - Thrust (.030") Bearing
SKU: AR77752
7 in stock

AR77751 - Thrust (.020") Bearing
SKU: AR77751
2 in stock

AR77750 - Thrust (.010") Bearing
SKU: AR77750
47 in stock

AR77748 - Thrust (Std) Bearing
SKU: AR77748
57 in stock

AR77747 - Thrust (Std) Washer Set
SKU: AR77747
Out of stock

AR74817 - Main (.020") Bearing
SKU: AR74817
60 in stock

AR74816 - Main (.010") Bearing
SKU: AR74816
95 in stock

AR74814 - Main (Std) Bearing
SKU: AR74814
42 in stock

AR70987 - Turbocharger
SKU: AR70987
37 in stock

AR65507 - Liner Sealing Ring Kit
SKU: AR65507
298 in stock

AR63272HC - 6.404T/A (High Compression) Piston Liner Kit
SKU: AR63272HC
20 in stock

AR63272 - 6.404T/A Piston Liner Kit
SKU: AR63272
56 in stock
AR63270 - Upper Gasket Set
SKU: AR63270
19 in stock

AR63269 - Overhaul without Seals Gasket Set
SKU: AR63269
17 in stock

AR57241 - Crankshaft Dampener Pulley
SKU: AR57241
107 in stock

AR55394 - Oil Cooler
SKU: AR55394
71 in stock

AR53094 - Overhaul without Seals Gasket Set
SKU: AR53094
3 in stock

AR53091 - Injector
SKU: AR53091
198 in stock

AR51798 - Piston Liner Kit
SKU: AR51798
83 in stock

AR51741 - Piston Rings
SKU: AR51741
147 in stock

AR49771 - Fuel Lift Transfer Pump
SKU: AR49771
13 in stock
