Production years
1970-1979
John Deere combine ยท 1970-1979
John Deere 4400 Combine Harvester
The John Deere 4400 is a popular, compact conventional combine from the 1970s, aimed at small to medium grain farms. It is remembered as a simple, capable straw-walker machine with excellent familiarity among collectors and budget-conscious owners.
Engine
John Deere 359 cu. in. 6-cylinder diesel, 100 hp
Grain tank capacity
3,150 litres standard
Header compatibility
Quik-Tatch grain platforms commonly 4-6.1 m; 4- or 5-row maize heads
John Deere 4400 specifications
| Production years | 1970-1979 |
|---|---|
| Threshing system | Conventional rasp-bar cylinder with straw walkers |
| Engine | John Deere 359 cu. in. 6-cylinder diesel, 100 hp |
| Grain tank capacity | 3,150 litres standard |
| Header compatibility | Quik-Tatch grain platforms commonly 4-6.1 m; 4- or 5-row maize heads |
| Weight | Approx. 5,445 kg without header |
| Cylinder | 22 in. diameter by 38 in. wide |
What the 4400 is used for
The 4400 was built for maize, soybeans, wheat, oats, and similar crops on farms that did not need the capacity of Deere's larger 6600 and 7700 models. Its size and conventional separation system suited diversified operations.
It remains useful for small acreage, food plots, demonstration harvesting, and vintage machinery events. Owners value its manageable size and relatively uncomplicated mechanical layout.
Why the John Deere 4400 stands out
The 4400 is notable as a durable, widely sold Deere combine from the New Generation period. Its Quik-Tatch header system, straightforward walker design, and extensive owner knowledge base help explain why many survive and why restoration interest remains strong.
Buying a used John Deere 4400
Examine the cylinder, concave, straw walkers, shoe, feederhouse chain, clean-grain elevator, and grain-tank and unloading-auger sheet metal for wear or corrosion. Check belts, variable-speed sheaves, bearings, hydraulic functions, and header condition, because an inexpensive combine can need extensive harvest-season work; confirm serial-specific specifications with TractorData.com and manufacturer records.
John Deere 4400 frequently asked questions
What engine is in a John Deere 4400 combine?
The diesel model is commonly cited with Deere's 359 cu. in., six-cylinder diesel rated at about 100 hp.
How large is the 4400 grain tank?
The standard tank is commonly cited at 90 bushels; extensions can change actual capacity.
Are parts still available for a 4400?
Many maintenance and wear parts are available through Deere, aftermarket suppliers, salvage yards, and owner networks, but availability varies by part.
Specifications are commonly cited figures for general reference; exact figures vary by year, header and configuration, so confirm against the manufacturer's records and the machine's serial number. Weights, capacities and dimensions are converted to metric and rounded. Used combine values vary by condition and hours. Page updated 19 Sep 2026.