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.

V12043 - Cylinder Bars
SKU: V12043
7 in stock

JD9339 - Bearing
SKU: JD9339
25 in stock

H132057 - Cylinder Spike; w/ Hardware Tooth
SKU: H132057
3760 in stock

AH85396 - Concave (13 Bars)
SKU: AH85396
3 in stock

N104147 - Coupler Sprocket
SKU: N104147
2 in stock

JDC-ADAPTER - Head Adapter
SKU: JDC-ADAPTER
416 in stock

JD9202 - Bearing (RH)
SKU: JD9202
473 in stock

H98655 - Bushing
SKU: H98655
4 in stock

H93927 - Feeder Conveyor Shaft Bearing Housing
SKU: H93927
86 in stock

H86092 - Upper Feeder House Shaft
SKU: H86092
6 in stock

H121435 - Upper Feeder House Sprocket
SKU: H121435
24 in stock

H115230 - Lower Feeder House Shaft
SKU: H115230
20 in stock

AN102383 - Coupler Chain
SKU: AN102383
279 in stock

AN102382 - Coupler Sprocket
SKU: AN102382
104 in stock

AH154697 - Isolator (10 Per Pk) Bushing
SKU: AH154697
1311 in stock

AH116712 - Feeder House Chain
SKU: AH116712
3 in stock

AH116698 - Feeder Drum Support Arm
SKU: AH116698
16 in stock

Z699H - Slip Clutch Tooth Ring
SKU: Z699H
818 in stock

P44439 - Bearing; Half Flange
SKU: P44439
1011 in stock

JD8665 - Bearing
SKU: JD8665
968 in stock

JD8552 - Bearing
SKU: JD8552
254 in stock

JD7689 - Grain Tank Loading Gearbox Ball Bearing
SKU: JD7689
67 in stock

JD7681 - Grain Tank Loading Gearbox Ball Bearing
SKU: JD7681
131 in stock

H94703 - Loading Auger Input Shaft
SKU: H94703
26 in stock
