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.

JD9320 - Open Ball; Single Row Bearing
SKU: JD9320
42 in stock

JD7557 - Bearing Race
SKU: JD7557
52 in stock

JD7537 - PTO Drive Shaft Bearing
SKU: JD7537
10 in stock

AT16431 - Seal
SKU: AT16431
283 in stock

RE60697 - 12V) A6 Style w/ Clutch (1 groove 5.75" pulley New Compressor
SKU: RE60697
232 in stock

RE174764 - Control Valve
SKU: RE174764
161 in stock

RE157329 - Dual Press. Switch
SKU: RE157329
263 in stock

LVU29708 - Receiver Drier
SKU: LVU29708
99 in stock

AR92109 - 10:00 coil) 12V A6 Style w/ Clutch (1 groove 5.75" pulley New Compressor
SKU: AR92109
232 in stock

AR82014 - Switch Blower
SKU: AR82014
284 in stock

AR77344 - Thermal Limiter Fuse (Pkg of 6)
SKU: AR77344
85 in stock

AR71287-DEN - Denso A6 Style Clutch
SKU: AR71287-DEN
10 in stock

AR66028 - Blower Wheel
SKU: AR66028
26 in stock

AR62497 - Blower Motor
SKU: AR62497
26 in stock

AR59779 - Switch AC/HT Temp
SKU: AR59779
493 in stock

AR53154 - Blower Switch
SKU: AR53154
284 in stock

AR53152 - Sub To 220-215
SKU: AR53152
284 in stock

AR52324 - Switch Thermostatic
SKU: AR52324
4 in stock

AR49964 - Blower Switch
SKU: AR49964
284 in stock

AR49962 - CW rotation) 5/16" X 1 3/8" shaft Condenser Motor (12volt
SKU: AR49962
5 in stock

AR49961 - Expansion Valve
SKU: AR49961
20 in stock

AR49960 - Sub To 220-256
SKU: AR49960
493 in stock

AR45867 - Receiver Drier
SKU: AR45867
35 in stock

AH84588 - Blower Switch
SKU: AH84588
284 in stock
