John Deere 4050 Tractor Parts
4050 parts and accessories
The John Deere 4050, produced from 1982 to 1986, was a popular and reliable tractor among farmers. Powered by a robust John Deere diesel engine, delivering around 110 horsepower, and boasting approximately 90 PTO horsepower, the 4050 provided the muscle needed for various farm tasks. Its combination of power, versatility, and Deere's reputation for durability made it a staple in fields across the country.
The John Deere 4050 was introduced in 1982 as part of the '50 Series' tractor lineup, replacing earlier models and incorporating updated features and styling. It was manufactured until 1986. The heart of the 4050 is a John Deere 6466A six-cylinder diesel engine, producing approximately 110 engine horsepower with a displacement of 466 cubic inches (7.6 liters). Transmission options included a SyncroRange transmission offering 8 forward and 4 reverse speeds, as well as a Quad-Range transmission with 16 forward and 8 reverse speeds providing better speed selection for different applications. The PTO delivers approximately 90 horsepower at either 540 or 1000 RPM, allowing it to power a wide range of implements. The hydraulic system provides around 24 GPM of flow to operate implements effectively. The 3-point hitch is a Category II, providing a lift capacity of around 5,700 lbs. The 4050 was commonly used for row crop work, hay production, livestock operations, and tillage. Compared to smaller models in the lineup, it offered more power and hydraulic capacity, while larger models provided even more horsepower for the biggest farming operations.
Specifications
| Engine | John Deere 6466A 110 HP Diesel |
|---|---|
| PTO HP | 90 HP @ 540/1000 RPM |
| Transmission | SyncroRange 8F/4R, Quad-Range 16F/8R |
| Hydraulics | 24 GPM, 2-3 remotes |
| 3-Point Hitch | Category II, 5700 lbs |
| Fuel Capacity | 45 gallons |
| Weight | 12,000 lbs |
| Years Produced | 1982-1986 |
Maintenance Tips
- Change engine oil and filter every 250 hours using the recommended oil type and a genuine John Deere or quality aftermarket filter.
- Regularly inspect and service the hydraulic system, checking for leaks and replacing filters according to the manufacturer's recommendations. This prevents costly hydraulic pump or valve damage.
- Keep the fuel system clean by using high-quality fuel and replacing fuel filters as scheduled. Consider using a fuel additive to prevent gelling in cold weather.
- Before seasonal storage, drain the fuel tank, add a fuel stabilizer, and ensure the tractor is stored in a dry location. This helps prevent corrosion and fuel degradation.
History & Background
The John Deere 4050 was a significant model in the '50 Series' lineup, representing an evolution in tractor design and technology. While not undergoing major redesigns during its production run, it benefitted from Deere's continuous improvement process. The 4050 played a vital role in modernizing farming practices by providing a versatile and powerful tractor for a wide range of agricultural tasks.
Frequently Asked Questions
What engine is in the John Deere 4050?
The John Deere 4050 is equipped with a John Deere 6466A six-cylinder diesel engine that produces approximately 110 horsepower.
What is the PTO horsepower on a 4050?
The John Deere 4050 has a PTO horsepower rating of approximately 90 horsepower. It typically operates at either 540 or 1000 RPM.
What oil filter fits the 4050?
The John Deere 4050 typically uses a John Deere oil filter part number AR77920. Common cross-references include Wix 51793 and Baldwin B243.
What are common parts needed for the 4050?
Common wear parts for the John Deere 4050 include engine oil filters, fuel filters, air filters, hydraulic filters, belts (fan belt, alternator belt), hydraulic seals, steering components (tie rod ends), and clutch parts.

R79996 - Front Pivot Pin
SKU: R79996
367 in stock

R76513 - Steering Cylinder Pin
SKU: R76513
30 in stock

R73635 - MFWD Steering Motor Rear Pivot Pin
SKU: R73635
60 in stock

R72858 - Oil Seal
SKU: R72858
290 in stock

R72090 - Bearing; MFWD Cup
SKU: R72090
547 in stock

R65827 - Pivot Pin Rear Bushing
SKU: R65827
224 in stock

R61159 - Center Steering Arm
SKU: R61159
11 in stock

R61153 - Steering Arm (LH)
SKU: R61153
24 in stock

R61152 - Steering Arm (RH)
SKU: R61152
41 in stock

R57050 - Hub; MFWD O-Ring
SKU: R57050
65 in stock

R51798 - Rear Pivot Pin
SKU: R51798
96 in stock

R50992 - Hub; Pound In Cap
SKU: R50992
579 in stock

R49841 - 8 Bolt Hub
SKU: R49841
66 in stock

R49838 - Thrust (Spindle) Washer
SKU: R49838
202 in stock

R49835 - Upper/ Lower Bushing
SKU: R49835
130 in stock

R34733 - (25/Pack) O-Ring
SKU: R34733
1000 in stock

R26632 - Wear Sleeve
SKU: R26632
117 in stock

R238229 - Planetary Pinion; MFWD Carrier
SKU: R238229
Out of stock

R100774 - Planetary Pinion Shaft Thrust Washer
SKU: R100774
22 in stock

R100249 - Pinion; MFWD Planetary Gear
SKU: R100249
63 in stock

M88048-I - Tapered Roller Bearing Cone
SKU: M88048-I
163 in stock

M88010-I - Tapered Bearing Cup
SKU: M88010-I
25 in stock

JLM104948-I - Tapered Roller Bearing Cone
SKU: JLM104948-I
371 in stock

JD9115 - Bearing; Wheel Hub (MFWD) Cup
SKU: JD9115
294 in stock
