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.

R52169 - Brake Operating Rod Guide
SKU: R52169
143 in stock

R50825 - Transmission Oil Pump Shaft
SKU: R50825
94 in stock

R50152 - Brake Piston & Clutch Drum Plate
SKU: R50152
209 in stock

R48236 - Planetary Brakes/Clutch Pack Plate
SKU: R48236
30 in stock

R48235 - 4th Planetary Brake/Clutch Pack Plate
SKU: R48235
2 in stock

R46418 - Trans Rear Clutch Pack Plate
SKU: R46418
347 in stock

R46391 - Input Planetary Plate
SKU: R46391
180 in stock

R40912 - Transmission Cover Gasket
SKU: R40912
77 in stock

R39322 - Clutch / Brake Sealing Ring
SKU: R39322
130 in stock

R39304 - Packing (2 PK) Washer
SKU: R39304
383 in stock

R39259 - Brake Piston & Clutch Drum Plate
SKU: R39259
74 in stock

R38181 - Retainer Fitting
SKU: R38181
4 in stock

R33425 - Transmission Case Cover Gasket
SKU: R33425
224 in stock

R33053 - 4th Planetary Brake/ Clutch Pack Disc
SKU: R33053
356 in stock

R33027 - Rear Axle Shaft Seal
SKU: R33027
54 in stock

R33026 - Rear Axle Shaft Seal
SKU: R33026
554 in stock

R116821 - Used w/ A-R62685 Shaft Pinion Gear
SKU: R116821
14 in stock

R111122 - Metallic Brake Pads
SKU: R111122
2371 in stock
R110464 - Metallic Brake Pads
SKU: R110464
800 in stock

R100939 - Clutch Housing To Cylinder Block Gasket
SKU: R100939
49 in stock
JD8257 - Bearing Cup
SKU: JD8257
250 in stock

JD8237 - Bearing Cup
SKU: JD8237
250 in stock

JD8177 - Bearing Cone
SKU: JD8177
31 in stock
JD8159 - BEARING
SKU: JD8159
40 in stock
