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.

D2593 - (.182" X .671") Rivets
SKU: D2593
6848 in stock

D1761 - (.182" X .481") Rivets
SKU: D1761
14823 in stock

AR94519 - PTO Clutch Assembly Disc
SKU: AR94519
368 in stock

AR94516 - Direct Drive Clutch Disc
SKU: AR94516
1086 in stock

AR66749 - Brake Disc
SKU: AR66749
32 in stock

AR389R - Shifter Cam Shaft Seal
SKU: AR389R
28 in stock

AR31946 - Brake Valve Overhaul Kit
SKU: AR31946
1098 in stock

AR28488 - Fiber Brake Pad (3/Bag)
SKU: AR28488
534 in stock

AR28487 - Fiber Brake Pad (3/Bag)
SKU: AR28487
1320 in stock
RE156640 - Oil Restriction Sensor
SKU: RE156640
34 in stock
RE15018 - Dampener Pulley
SKU: RE15018
172 in stock

RE12180 - PTO / Eng Speed Sensor; Magnetic Pickup
SKU: RE12180
126 in stock

RE11410 - Valve Rotator
SKU: RE11410
288 in stock

R98062 - Intake (Std) Valve
SKU: R98062
76 in stock

R97490 - Intake (.015") Valve
SKU: R97490
77 in stock

R97454 - Timing Cover Gasket
SKU: R97454
57 in stock

R97352 - Oil Filter Inlet Gasket
SKU: R97352
41 in stock

R97345 - Pan Gasket
SKU: R97345
10 in stock

R92426 - Head Gasket
SKU: R92426
22 in stock
R91889 - Valve (12 halves) Lock
SKU: R91889
7368 in stock

R90692 - Exhaust (Std) Valve
SKU: R90692
64 in stock

R90648 - Cylinder Block Plate Gasket
SKU: R90648
12 in stock

R90249 - Half Split Rear Gasket
SKU: R90249
16 in stock

R89879 - Turbo Mounting Gasket
SKU: R89879
43 in stock
