John Deere 4850 Tractor Parts
4850 parts and accessories
The John Deere 4850, manufactured from 1983 to 1986, was a popular row-crop tractor known for its robust performance and reliability. Powered by a John Deere 7.6L diesel engine producing approximately 185 engine horsepower, it delivered a dependable 155 PTO horsepower. Farmers appreciated its power and versatility for a variety of field operations.
The John Deere 4850 was introduced in 1983 as part of the '50 Series' lineup, replacing earlier models and representing a significant step forward in tractor technology. Production continued through 1986. The tractor features a John Deere 7.6L (466 cu in) 6-cylinder diesel engine, producing around 185 engine horsepower. Its transmission options included a 15-speed Power Shift or a Quad Range transmission offering 16 forward and 6 reverse speeds. The 4850 boasts a PTO horsepower rating of approximately 155 hp, available at both 540 and 1000 RPM. The hydraulic system offered a capacity of around 30 GPM, powering typically two or three remote hydraulic valves. It features a Category II/III 3-point hitch, providing ample lift capacity for various implements. Common farming applications included row crop work (planting, cultivating, harvesting), hay production (mowing, baling), livestock operations (feeding, manure spreading), and tillage. What distinguished it from other models in the John Deere lineup was its increased horsepower and improved hydraulics compared to the smaller frame models, and its Power Shift transmission option, popular for reducing operator fatigue in demanding field conditions.
Specifications
| Engine | John Deere 7.6L 185 HP Diesel |
|---|---|
| PTO HP | 155 HP @ 1000 RPM |
| Transmission | Power Shift (15-speed) or Quad Range (16F/6R) |
| Hydraulics | 30 GPM, 2-3 remotes |
| 3-Point Hitch | Category II/III, 6,720 lbs lift capacity |
| Fuel Capacity | 68 gallons |
| Weight | 15,375 lbs |
| Years Produced | 1983-1986 |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours using a high-quality oil that meets John Deere specifications. Be sure to replace the filter with a genuine or equivalent quality filter to ensure proper filtration.
- Hydraulic System: Regularly inspect the hydraulic fluid level and condition. Change the hydraulic fluid and filter(s) every 1000 hours or as recommended by the manufacturer. Use the correct type of hydraulic fluid specified for the John Deere 4850 to prevent damage to the system.
- Fuel System: Use clean, high-quality diesel fuel and replace the fuel filter every 500 hours. Regularly check for water in the fuel tank and drain as needed to prevent fuel system issues.
- Seasonal Storage: Before storing the tractor for the off-season, fill the fuel tank to prevent condensation. Add a fuel stabilizer to the fuel to prevent fuel degradation. Disconnect the battery and store it in a cool, dry place. Grease all fittings and check coolant level and add as needed.
History & Background
The John Deere 4850 was a key model in the John Deere '50 Series' tractor lineup introduced in the early 1980s. These tractors incorporated several technological advancements and styling changes over their predecessors. The 4850 remains a popular choice among farmers today due to its reliability and readily available parts.
Frequently Asked Questions
What engine is in the John Deere 4850?
The John Deere 4850 is equipped with a John Deere 7.6L (466 cu in) 6-cylinder diesel engine producing approximately 185 engine horsepower.
What is the PTO horsepower on a 4850?
The PTO horsepower of the John Deere 4850 is approximately 155 horsepower. It is available at both 540 and 1000 RPM.
What oil filter fits the 4850?
The John Deere 4850 typically uses a John Deere AR97284 or equivalent oil filter. Common cross-references include Wix 51742, Fram PH3756, and Baldwin B233.
What are common parts needed for the 4850?
Commonly needed parts for the John Deere 4850 include engine oil filters, fuel filters, hydraulic filters, belts (fan, alternator), hydraulic seals, steering components (tie rod ends, ball joints), clutch parts (discs, release bearings), and tires.

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

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

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

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

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

R83021 - Exhaust Manifold Gasket
SKU: R83021
2162 in stock

R83020 - Exhaust Manifold Gasket
SKU: R83020
707 in stock

R79606 - Tee Fitting
SKU: R79606
259 in stock

R79605 - Grommet
SKU: R79605
5681 in stock

R79604 - Injector NUT
SKU: R79604
200 in stock

R78702 - Intake Valve (Std) Insert
SKU: R78702
79 in stock

R74008 - Connecting Rod Bushing
SKU: R74008
257 in stock

R71918 - Pan Gasket
SKU: R71918
124 in stock

R66452 - Connecting Rod Capscrew
SKU: R66452
2048 in stock

R64840 - Injector Washer
SKU: R64840
Out of stock

R62952 - Engine Oil Pump Tube
SKU: R62952
33 in stock
R57771 - Piston 1.874 Pin
SKU: R57771
82 in stock

R56995 - Exhaust (Front) Manifold
SKU: R56995
29 in stock

R56994 - Exhaust Elbow
SKU: R56994
48 in stock

R55078 - 3/8" X 1-1/2" Stud
SKU: R55078
91 in stock
