The John Deere 4440 is a renowned tractor model that has earned a solid reputation in the agricultural industry. This model is widely recognized for its exceptional performance and reliability. The John Deere 4440 is a popular choice among farmers and agricultural professionals due to its robust construction and versatility.
It is known for its ability to handle a wide range of tasks on the farm, making it a versatile and dependable workhorse. The John Deere 4440 is often praised for its durability and ability to withstand demanding work conditions, making it a trusted choice in the field of agriculture.
This model is designed to be user-friendly, appealing to both experienced tractor operators and those new to tractor operation. Its reputation is built on its strong build quality and consistent performance, making it a favored option for various agricultural applications.
John Deere 4440 Specs
Model Years
1978 – 1982
Series
Iron Horses Series
Type
Row-Crop Tractor
Production
Manufacturer
John Deere
Built in
Waterloo, Iowa, USA
Notable Change
Rear axle size increased from 86mm to 92mm after serial number 010329 in the first production year.
The Heart of the John Deere 4440: Its Engine
At the core of the John Deere 4440 lies a potent engine. This engine is a 7.6-liter turbocharged 6-cylinder powerhouse capable of generating 130 horsepower. It operates with a liquid-cooling system to maintain optimal temperatures, ensuring smooth performance in various conditions.
With a compression ratio of 14.9:1, this engine combines efficiency and power. It’s equipped with a pre-heating system, making cold-weather starts hassle-free. The firing order of its pistons is 1-5-3-6-2-4, a setup that promotes smooth operation and reduces wear on the piston rings.
To kickstart this engine, a 12-volt starter mechanism is used. John Deere designed these engines specifically for the Iron Horse Series tractors, earning a reputation for reliability and performance in the agricultural world.
Variants
4440
Row-crop
4440 Hi-Crop
High-clearance
Engine Detail
Manufacturer
John Deere
Type
Turbocharged Diesel
Cylinders
6-cylinder, Liquid-cooled inline
Displacement
466 cubic inches (7.6 L)
Bore/Stroke
4.5625×4.75 inches (116 x 121 mm)
Air Cleaner
Dry with safety element
Pre-heating
Ether injection
Compression Ratio
14.9:1
Rated RPM
2200
Idle RPM
800-2400
Operating RPM Range
1500-2200
Firing Order
1-5-3-6-2-4
Starter Voltage
12V
Oil Capacity
16 quarts (15.1 L)
Coolant Capacity
36 quarts (34.1 L)
Intake Valve Clearance
0.018 inches (0.457 mm)
Exhaust Valve Clearance
0.028 inches (0.711 mm)
Transmission
Type
John Deere Quad-Range (Partial Power Shift)
Gears
16 forward and 6 reverse
Oil Capacity
44 quarts (2WD), 60 quarts (4WD)
Transmission Features
Four gears (1-4) in four ranges (A-D), power shift between pairs 1-2 and 3-4 in each range, synchronized shift between 2-3. Two reverses in ranges A-C. Tractor must be stopped, and clutch used, to shift ranges. Power shift provided by hydraulically-controlled planetary that provides overdrive to each gear.
John Deere 4440 Power
Drawbar (Claimed)
112 hp (83.5 kW)
PTO (Claimed)
130 hp (96.9 kW)
Drawbar (Tested)
112.69 hp (84.0 kW)
PTO (Tested)
130.58 hp (97.4 kW)
Mechanical
Drive Options
4×2 2WD, 4×4 HFWD 4WD
Differential Lock
Pedal-actuated hydraulic
Brakes
Differential hydraulic wet disc brakes
Cab
Sound-Gard cab standard, with four-post ROPS available
The John Deere 4440 stands out from other tractors in its class due to several unique features and qualities:
Powerful Engine: The John Deere 4440 is equipped with a turbocharged diesel engine that delivers robust power and performance. Its 6-cylinder, liquid-cooled engine provides impressive torque and horsepower, allowing it to handle a wide range of tasks efficiently. Transmission Options: This tractor offers a choice of transmissions, including a 16-speed partial power shift and an 8-speed full power shift. This versatility allows operators to select the transmission that best suits their specific needs and preferences. Hydraulic System: The John Deere 4440 features a closed-center hydraulic system with multiple valves, providing excellent hydraulic performance. This hydraulic system enables the tractor to operate various hydraulic attachments with precision. Variants: The availability of different variants, including the standard row-crop model and the high-clearance hi-crop version, allows users to choose the configuration that aligns with their farming requirements. Sound-Gard Cab: The tractor comes with a Sound-Gard cab as standard or a four-post ROPS (Roll-Over Protective Structure), enhancing operator comfort and safety during long hours of operation. Differential Lock: The pedal-actuated hydraulic differential lock ensures excellent traction and control, especially in challenging terrain and conditions. Large Fuel Capacity: With a generous fuel tank capacity, the John Deere 4440 can work longer hours without frequent refueling, improving overall productivity. John Deere 148 and 158 Loaders: The availability of compatible loaders like the John Deere 148 and 158 loaders further enhances the tractor’s versatility, allowing it to handle loader work with ease. Built by John Deere: As a product of John Deere, a reputable and trusted manufacturer in the agricultural industry, the 4440 inherits the brand’s legacy of quality and reliability. Wide Range of Tires: The tractor supports various tire sizes and types, allowing users to choose the right tires for specific applications and terrains.
John Deere 4440: A Timeless Classic
The John Deere 4440, often referred to as one of Deere’s best, holds a special place in the hearts of many farmers and enthusiasts. While some might consider it a relatively young tractor, especially when compared to its predecessors, its enduring popularity and significance in the world of agriculture cannot be denied. For those who have had the opportunity to work with a 4440, it represents a blend of nostalgia and modernity, offering a glimpse into the past while still holding its own in the present.
The transition from the New Generation tractors to the Generation II tractors marked a significant moment in Deere’s history. The Generation II tractors, introduced in 1972, brought newfound comfort, adaptability, durability, and power to the farming world. Among them, the 4430 emerged as a sales leader, boasting a robust 404 cubic inch diesel engine and an impressive 125+ horsepower output. However, some customers raised concerns about torque at lower RPMs and hydraulic performance.
Deere, always attentive to customer feedback, recognized the need for improvement. In 1977, they unveiled “The New Iron Horses,” a series that included the 4440, a worthy successor to the 4430. The 4440 came equipped with a brand-new 466 cubic inch engine, delivering enhanced torque in the low and medium RPM ranges. While Deere claimed it could produce 130 horsepower at the PTO, real-world tests often exceeded these figures. Deere’s marketing emphasized that horsepower ratings alone couldn’t capture the tractor’s true capabilities, highlighting factors like acceleration, recovery rate, and overall work efficiency that could only be appreciated during fieldwork.
The 4440 earned its “Iron Horses” moniker, with numerous parts and components strengthened to ensure durability and reliability. Its hydraulic lift capacity addressed concerns raised about the 4430, offering increased weight-carrying capabilities. A lift assist cylinder option further elevated lift capacity. Deere also upgraded the cooling system, radiator, and fans to prevent overheating.
The tractor’s cab, a modified Sound-Gard body, received enhancements to make it even quieter and more comfortable. Deere introduced the option of a hydra-cushioned suspension for the seat, allowing operators to fine-tune their ride quality. For those who preferred alternatives to the Sound-Gard body, the four-post Roll-Gard body remained available.
The 4440 wasn’t just a workhorse; it was a versatile machine offered in a Hi-Crop version for tall crops and equipped with power front-wheel drive for challenging terrains. Deere’s attention to detail extended to axle/wheel/tire combinations, providing options to suit diverse needs.
During its five-year production run, the 4440 became a favorite among farmers, averaging over 13,000 units sold annually. Its enduring popularity and reputation for reliability have made it a cherished tractor, with many operators considering it one of Deere’s finest creations.
While the 4440 may not yet be considered a collectible, its timelessness and significance in the history of agriculture are undeniable. These Iron Horses continue to roam the fields, a testament to Deere’s enduring commitment to quality, performance, and customer satisfaction. Until they find their place among collectibles, the 4440s remain where they belong – in the heart of farm work, tirelessly serving the agricultural community.
