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.

R56960 - Clutch Spring
SKU: R56960
33 in stock

R56854 - PTO Clutch Hub
SKU: R56854
85 in stock

R51230 - Clutch Bolt
SKU: R51230
68 in stock

R50346 - Traction Clutch Hub
SKU: R50346
Out of stock

R50341 - Clutch Backing Plate
SKU: R50341
41 in stock

R50335 - Clutch Housing Gasket
SKU: R50335
323 in stock

R31131 - Clutch Lever Pin
SKU: R31131
563 in stock

R112385 - Trans Clutch Plate
SKU: R112385
116 in stock

JD9449 - Pilot: .669" I.D. Bearing
SKU: JD9449
1624 in stock

AR95827 - Transmission Clutch (22 Holes) Disc
SKU: AR95827
641 in stock

TY26549 - ORIGINAL FABRIC Hydraulic Steel Cushion Set 2 Pc.
SKU: TY26549
Out of stock

TY26545 - Yellow Vinyl Seat Cushion Kit; 3 Piece
SKU: TY26545
149 in stock

TY26543 - ORIGINAL FABRIC Steel Mechanical Cushion Set 2 Pc.
SKU: TY26543
43 in stock

TY15834 - Seat Cushion Set (4 Pc.)
SKU: TY15834
50 in stock

RE163029 - Seat Back Cushion
SKU: RE163029
125 in stock

RE163027 - Seat Bottom Cushion
SKU: RE163027
48 in stock

R51649 - Bearing Race
SKU: R51649
120 in stock

R51648 - Washer
SKU: R51648
640 in stock

R27441 - Washer
SKU: R27441
330 in stock

R26876 - Shaft Lower Seat
SKU: R26876
10 in stock

R26436 - 4 per bag Seat Roller
SKU: R26436
Out of stock

AR88527 - Link Seat Suspension
SKU: AR88527
13 in stock

AR76515-C - ORIGINAL FABRIC Tie-On Seat Cover
SKU: AR76515-C
55 in stock

AR76515 - Mechanical Suspension Bottom Cushion
SKU: AR76515
40 in stock
