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.

M41029 - Piston Pin Retainer
SKU: M41029
30 in stock

M20088 - Flywheel Ring Gear
SKU: M20088
Out of stock

H35244 - Crankshaft Sleeve O-Ring
SKU: H35244
85 in stock

AT86986 - Major Engine Overhaul Kit
SKU: AT86986
Out of stock

AT24252 - Lower Gear
SKU: AT24252
24 in stock

AT22562 - Crankshaft
SKU: AT22562
7 in stock

AT21139 - Thrust (Std) Bearing
SKU: AT21139
91 in stock

AT21136 - Flanged) Thrust (.030" Bearing
SKU: AT21136
6 in stock

AT21134 - Flanged) Thrust (.020" Bearing
SKU: AT21134
6 in stock

AT21132 - Flanged) Thrust (.010" Bearing
SKU: AT21132
37 in stock

AR92893 - Rear Crankshaft W/ Wear Sleeve Seal
SKU: AR92893
98 in stock

AR91660 - Upper Timing Gear
SKU: AR91660
10 in stock

AR89564 - Pencil Injector
SKU: AR89564
647 in stock

AR85618 - Injectors Tee
SKU: AR85618
306 in stock

AR78041 - Piston Liner Kit
SKU: AR78041
152 in stock

AR77762 - PISTON
SKU: AR77762
9 in stock

AR71992 - Upper Gasket Set
SKU: AR71992
117 in stock

AR71618 - Liner Sealing Ring Kit
SKU: AR71618
32 in stock

AR67942 - Front Crankshaft Seal
SKU: AR67942
49 in stock

AR55759 - Piston Rings
SKU: AR55759
252 in stock

AR102267 - Upper Gasket Set
SKU: AR102267
37 in stock

AR100426 - Upper Gasket Set
SKU: AR100426
117 in stock

33K701 - Valve Keeper
SKU: 33K701
2798 in stock

TY6748-N - NEW MO/PL ALTERNATOR
SKU: TY6748-N
13 in stock
