John Deere 2850 4×4 1991 – Sturdy 86 HP Utility Tractor with Synchro & Front Hydraulics
The **1991 John Deere 2850 4×4 Synchro** is a classic, rugged utility tractor designed for reliable performance in field, yard, and general farm work. With **≈ 86 HP (≈ 64.1 kW)** from its 3.9-L 4-cylinder John Deere 4239TL engine, selectable **4×4 drive**, Synchro transmission, and front hydraulics fitted, this unit is ideal for those needing front implement capability as well as rear PTO and hitch work. It’s built for longevity and simplicity.
Key Specifications.
John Deere 2850 4×4 1991
- Engine: John Deere 4239TL, 4-cyl diesel, 3.9 L displacement, turbocharged.
- Power Output: ~86 HP (64.1 kW) gross.
- Transmission: Synchro / Power Synchro with “Hi-Lo” or 2-speed power shift features; 16 forward × 8 reverse.
- Drive / Chassis: 4×4 (Selectable); final drives are planetary. Power steering.
- Hydraulics: Closed-center constant pressure system; front hydraulics fitted to the listing; hydraulic PTO wet disc clutch. Flow ~43.9 L/min. Operating pressure ~190 bar.
- PTO (Rear & Front): Rear independent PTO, 540 / 1000 rpm; front PTO independent 1000 rpm.
- Lift Capacity: Rear lift under 4WD ≈ 3,999 kg (≈ 8,818 lbs). Front hitch / front hydraulics lift ≈ 1,630 kg.
- Fuel Tank Capacity: Standard ~84 L; optional larger tank ~135.9 L.
- Dimensions & Weight: Length ≈ 424 cm; width ≈ 206 cm; wheelbase (4WD) ≈ 228 cm; operating weight around 3,900-4,000 kg.
- Tires / Standard Ag Setup: Rear ~14.9R38; front options depend on spec; typical front tires for 4WD ~12.4R28.
What Makes This Tractor Valuable.
John Deere 2850 4×4 1991
- Front Hydraulics Fitted: Adds do-it-all capability—loader, front implement tasks, etc. Many older units lack this. If hydraulics are in good shape, this is a major plus.
- 4WD for Better Traction: Helps in wet, sloped, or heavy load conditions; more versatility than 2WD version.
- Synchro Transmission: Easier shifting even under load; more user-friendly in mixed work than non-synchro gears.
- Simple & Durable Design: Older John Deeres like the 2850 are often easier to maintain and repair; parts may be more available and less complex electronics involved.
- Front & Rear PTOs Give Flexibility: Multiple PTO speeds + front hydraulics/hitch broadens use to implements that need front-power or dual attachment options.
Typical Use Cases & Best Matches.
John Deere 2850 4×4 1991
- Front loader work: moving material, silage, feed handling, etc.
- Light to moderate field work: mowing, trails, cultivation, ploughing with lighter implements.
- Towing small to medium trailers; transport around farm or property.
- General yard work; snow clearing if fitted, maintenance, etc.
- Backup tractor where high tech not required but rugged power & hydraulic versatility is needed.
Pre-Purchase / Inspection Checklist.
John Deere 2850 4×4 1991
- Check engine hours & condition: turbo, injectors, smoke under load, compression if possible.
- Transmission sync & gears: make sure Synchro shifting is smooth; check reverse / forward gears under load.
- Verify front hydraulics condition: hoses, seals, cylinders; test front hitch or front implement lift if applicable.
- Test PTO engagement both rear & front; ensure both 540/1000 RPM operate correctly.
- Tire condition: especially rear and front tires; matching sizes and good thread depth; check rims for damage.
- Inspect 4WD system and differential locks (if fitted); verify front axle function under traction load.
- Check hydraulic flow rate under load; leaks; bucket / loader bracket integrity if used with loader.
- Verify structural condition: frame, rust, welds, axles; check for signs of frame fatigue or body damage.
- Check cooling, radiator, belts; battery & electrical; especially important in older tractors.
Summary Table.
John Deere 2850 4×4 1991
| Feature | Spec / Typical Value |
|---|---|
| Model / Year | John Deere 2850 4×4 (1991) |
| Engine Power | ≈ 86 HP / 64.1 kW |
| Transmission | Synchro / Hi-Lo / Power-Synchro – 16F × 8R |
| Drive Type | 4WD, selectable |
| Rear PTO Speeds | 540 / 1000 rpm |
| Lift Capacity (Rear, 4WD & ends) | ≈ 3,999 kg |
| Front Hydraulics / Hitch Lift | ≈ 1,630 kg (front hitch type II typical) when fitted |
| Fuel Tank Capacity | ~84 L standard; optional ~136 L |
| Operating Weight | ~3,900-4,200 kg) depending on spec |
Conclusion – Classic Power & Utility for Tough Jobs.
John Deere 2850 4×4 1991
If you want a dependable, lower-cost tractor with solid utility, the **1991 John Deere 2850 4×4 Synchro** is a strong candidate. With front hydraulics, 4WD, and decent lift, it can still do meaningful work. Ensure the unit is well-maintained, gears & PTO tested, and hydraulics in good shape. For those tasks where modern electronic aids are not needed but dura ability & parts access are, this model often offers excellent value. Order Here.
