John Deere 4400 Combine Parts
The John Deere 4400 combine, manufactured from 1972 to 1979, was a popular choice for farmers looking for a reliable and efficient grain harvesting solution. Powered by a John Deere diesel engine producing around 105 horsepower, the 4400 offered header widths up to 15 feet. Its conventional threshing system made it well-suited for a variety of crops, solidifying its reputation for dependable performance.
The John Deere 4400 combine was introduced in 1972 and remained in production until 1979, filling a crucial role in the John Deere combine lineup. It was powered by a 329 cubic inch John Deere diesel engine rated at approximately 105 horsepower. The 4400 utilized a conventional threshing system with a 43-inch wide cylinder, offering effective grain separation. Grain tank capacity was approximately 70 bushels, with an unloading auger capable of emptying the tank at a rate of around 25 bushels per minute. Available header widths ranged from 13 to 15 feet, allowing for efficient harvesting in various field conditions. Chopper and spreader options were available to manage crop residue. The cab featured basic controls and instrumentation to monitor combine performance. The John Deere 4400 excelled at harvesting wheat, soybeans, corn, and other small grains, establishing itself as a versatile and dependable machine for farmers.
Specifications
| Engine | John Deere 105 HP 329 cu in Diesel |
|---|---|
| Separator Type | Conventional - 43-inch Cylinder |
| Grain Tank | 70 bushels |
| Unloading Rate | 25 bu/min |
| Header Widths | 13-15 ft |
| Fuel Capacity | 45 gallons |
| Weight | 12,500 lbs |
| Years Produced | 1972-1979 |
Maintenance Tips
- Concave Adjustment: Regularly check and adjust the concave clearance to ensure proper threshing without damaging the grain. Consult the operator's manual for recommended settings based on the crop being harvested.
- Belt and Chain Tension: Inspect and adjust belt and chain tension throughout the harvesting season to prevent slippage and ensure efficient power transmission. Replace worn belts and chains promptly.
- Sieve and Chaffer Cleaning: Regularly clean the sieves and chaffer to remove debris and prevent grain loss. Adjust the sieve and chaffer openings according to the crop and field conditions.
- Bearing Greasing: Grease all bearings regularly according to the manufacturer's recommendations. Proper lubrication will extend the life of the bearings and prevent premature failure.
History & Background
The John Deere 4400 combine was introduced in 1972 as a mid-sized combine option in the John Deere lineup. It did not undergo any major redesigns during its production run, focusing on refining existing features for improved reliability and performance. The 4400 played a significant role in providing farmers with an affordable and dependable combine for harvesting various grain crops.
Frequently Asked Questions
What engine is in the John Deere 4400?
The John Deere 4400 combine is equipped with a 329 cubic inch John Deere diesel engine producing approximately 105 horsepower.
What is the grain tank capacity on a 4400?
The grain tank capacity of the John Deere 4400 is approximately 70 bushels, with an unloading rate of around 25 bushels per minute.
What type of separator does the 4400 have?
The John Deere 4400 utilizes a conventional threshing system with a 43-inch wide cylinder for grain separation.
What are common parts needed for the 4400?
Common parts needed for the John Deere 4400 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. Regular inspection and replacement of these parts can ensure optimal performance.

28H1883 - Spacer Bushing
SKU: 28H1883
79 in stock

T25485 - Water Pump Gasket
SKU: T25485
46 in stock

T24932 - Thermostat Cover (5 Pack) Gasket
SKU: T24932
9 in stock

T20243 - Water Pump Gasket
SKU: T20243
578 in stock

RE48583 - 180° Thermostat
SKU: RE48583
78 in stock

RE227949 - Engine Block Heater
SKU: RE227949
189 in stock

R54641 - Thermostat Housing to Head Gasket
SKU: R54641
212 in stock

R43582 - Radiator Hose
SKU: R43582
30 in stock

JD9257 - Water Pump Shaft Bearing
SKU: JD9257
166 in stock
H94373 - Engine Fan Belt
SKU: H94373
254 in stock

DZ100555 - 180° Thermostat
SKU: DZ100555
39 in stock

AR77411 - 195° Thermostat
SKU: AR77411
14 in stock

AR62933 - Water Pump Seal Kit
SKU: AR62933
131 in stock

AR50518 - Engine Block Frost Plug Heater
SKU: AR50518
68 in stock

AR48675 - 180° Thermostat
SKU: AR48675
491 in stock

AR101549 - Water Pump Seal Kit
SKU: AR101549
514 in stock

365333X1 - Radiator Drain Tap
SKU: 365333X1
223 in stock

T35294 - Adjusting Screw
SKU: T35294
7255 in stock
T17911 - Pressure Spring
SKU: T17911
284 in stock

JD9436 - Pilot Bearing
SKU: JD9436
463 in stock

AR41942 - Trans Release (sealed) Bearing
SKU: AR41942
50 in stock

AM3983T - Release (greaseable) Bearing
SKU: AM3983T
41 in stock

AH93293 - Trans Disc: 11"
SKU: AH93293
2 in stock

AH93292 - Pressure Plate: 11"
SKU: AH93292
Out of stock
