John Deere 4440 Tractor Parts
4440 parts and accessories
The John Deere 4440, manufactured from 1977 to 1982, was a workhorse on farms across America. Powered by a robust 110 PTO horsepower diesel engine, the 4440 provided reliable power for a wide range of agricultural tasks. Its comfortable cab and dependable performance made it a favorite among farmers during its production run and beyond.
The John Deere 4440 was introduced in 1977 as part of the 'Iron Horse' series, succeeding the 4320. Production continued until 1982. Its heart was a John Deere 6.6L (404 cu in) six-cylinder diesel engine, producing approximately 130 gross horsepower and 110 PTO horsepower. The engine featured a turbocharger for increased performance and efficiency. Transmission options included a Quad-Range transmission with 16 forward and 6 reverse speeds, or a Syncro-Range transmission with 8 forward and 2 reverse speeds. The 4440's PTO delivered power at 540 or 1000 RPM, catering to various implement requirements. The hydraulic system offered a capacity of around 30 GPM, providing ample flow for implements. It featured a Category II 3-point hitch, offering a lift capacity of approximately 5,800 lbs. The 4440 was widely used in row crop operations, hay production, livestock farming, and general tillage work. It distinguished itself from smaller models with its increased power and heavier build, while offering a more economical alternative to larger models like the 4640.
Specifications
| Engine | John Deere 6.6L 130 HP Diesel |
|---|---|
| PTO HP | 110 HP @ 540/1000 RPM |
| Transmission | Quad-Range (16F/6R) or Syncro-Range (8F/2R) |
| Hydraulics | 30 GPM, 2-3 remotes |
| 3-Point Hitch | Category II, 5800 lbs |
| Fuel Capacity | 47 gallons |
| Weight | 12,500 lbs |
| Years Produced | 1977-1982 |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation, using high-quality diesel engine oil meeting John Deere specifications.
- Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filters every 500 hours. Use only John Deere Hy-Gard or equivalent hydraulic fluid. Check for leaks around hoses and cylinders.
- Fuel System: Drain the water separator regularly to prevent water contamination in the fuel system. Replace fuel filters every 500 hours to ensure clean fuel delivery.
- Seasonal Storage: Before storing the tractor for the off-season, fill the fuel tank to prevent condensation, change the engine oil and filter, and grease all fittings. Disconnect the battery and store it in a cool, dry place.
History & Background
The John Deere 4440 was launched in 1977 and quickly became a popular tractor during its time. It was part of the 'Iron Horse' series, featuring improved cabs and updated styling. The 4440 is remembered as a reliable and versatile tractor that contributed significantly to agricultural productivity in the late 1970s and early 1980s.
Frequently Asked Questions
What engine is in the John Deere 4440?
The John Deere 4440 is powered by a John Deere 6.6L (404 cu in) six-cylinder diesel engine, producing approximately 130 gross horsepower.
What is the PTO horsepower on a 4440?
The John Deere 4440 has a PTO horsepower rating of 110 HP. It can be configured for either 540 or 1000 RPM PTO speed, depending on the implement requirements.
What oil filter fits the 4440?
The John Deere 4440 typically uses a John Deere oil filter part number AR50041. Common cross-references include Wix 51794, and Baldwin B232.
What are common parts needed for the 4440?
Common parts needed for the John Deere 4440 include engine oil filters, fuel filters, hydraulic filters, belts (alternator/water pump), hydraulic cylinder seals, steering components (tie rod ends, drag links), clutch discs, and PTO clutch components.

R56463 - Hydraulic Piston (Pack of 5) O-Ring
SKU: R56463
650 in stock

R54123 - Plug Adapter Fitting
SKU: R54123
7 in stock

R50215 - Hydraulic Pump Drive Shaft Coupler
SKU: R50215
236 in stock

R50012 - Selective Control Valve Linkage Arm
SKU: R50012
Out of stock

R46345 - (1) Drive Pin for Coupler Drive
SKU: R46345
186 in stock

R45874 - Bearing; W/ Rollers Race
SKU: R45874
Out of stock

R45822 - Hydraulic Drive Bushing
SKU: R45822
6623 in stock

R39228 - Hydraulic Pump Valve (5/Pack) Spring
SKU: R39228
Out of stock

R34397 - Coupler Cartridge
SKU: R34397
149 in stock

R34362 - Coupler Half for Hyd Pump Drive
SKU: R34362
1020 in stock

R34360 - (1) Drive Pin for Coupler Drive
SKU: R34360
2238 in stock

R34348 - Pump Shaft
SKU: R34348
212 in stock

R27173 - Stroke Control Valve Filter Element
SKU: R27173
110 in stock

R27150 - Hydraulic Pump Piston
SKU: R27150
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R26484 - SCV Poppet Valve Back-Up Ring
SKU: R26484
170 in stock

L34569 - Hydraulic Pump Drive Coupling
SKU: L34569
20 in stock

L34432 - Front Drive Shaft Coupling
SKU: L34432
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HPK4050 - Hydraulic Piston Kit
SKU: HPK4050
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F3171R - (10/Pack) O-Ring
SKU: F3171R
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BR1683 - Hydraulic Pump Shaft Bearing & Race
SKU: BR1683
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AR97872 - Hydraulic Pump
SKU: AR97872
232 in stock

AR94661 - Hydraulic Pump
SKU: AR94661
175 in stock

AR94660 - Hydraulic Pump
SKU: AR94660
112 in stock

AR87535 - Pump Seal Drain Oil Line
SKU: AR87535
191 in stock
