John Deere 850

1977–1984165 HPdieselfarm
B
Average
Score: 58.8/100
Recalls
2
Found
Known Issues
12
3 high severity
Auction Records
4
Avg €10,521
Reliability
B
59/100

Specifications

Engine Power165 HP
Engine (kW)123 kW
Fuel Typediesel
Transmissionhydrostatic
Categoryfarm
Production Years1977–1984

Safety Recalls

2 found
On certain side-by-side vehicles, the original (factory-installed) engine oil filter may have been manufactured incorrectly and could leak.

On certain side-by-side vehicles, the original (factory-installed) engine oil filter may have been manufactured incorrectly and could leak. Oil leaking or spraying onto a hot engine or exhaust component could result in a fire causing property damage and/or personal injury. Correction: Dealers will replace the engine oil filter.

EngineCA
On certain side-by-side ATVs, the fuel line connectors in the engine compartment may not have been properly connected.

On certain side-by-side ATVs, the fuel line connectors in the engine compartment may not have been properly connected. If the connectors were to separate, the engine would stall and fuel would be sprayed in the engine compartment. Fuel could also continue to be sprayed while attempts are made at re-starting the engine. Fuel leakage could result in a fire causing property damage and/or personal injury. Correction: Dealers will inspect the fuel line connectors.

Fuel SystemCA

Known Issues

12 reported
3 high6 low3 medium
Cooling system hose failures and pressure loss
high

Cooling system had extensive hose leaks causing overheating and lack of system pressure. Coolant overflow bottle mount was removed and system was previously filled with tap water for extended period.

cooling
Head gasket failure with coolant mixing
high

Head gasket failure evidenced by bubbling in coolant overflow tank, smoke from exhaust, high oil consumption, and oil buildup around head. Coolant leaking into combustion chamber or oil system.

engine
Coolant system leaks from hoses
medium

Coolant leaking from all hoses in the cooling system, requiring replacement. System had low pressure due to missing coolant reservoir bracket and broken overflow bottle mount.

cooling
CA: John Deere Review by Dayne from Watertown, WI (1/5 stars) An area dea
medium

An area dealer brought several of these defective tractors to an auction in Lebanon, WI. I tested it as much as I could before spending the $850.00 for this mower with 400hrs. Two mows later on a 1-acre lot, the mower stops rolling after 15minutes. After calls to the organizers of the auction telling them of this, they are not interested in looking up who the dealer was to help me contact them. (T

pto
Excessive exhaust smoke and rough combustion
medium

Tractor produces excessive non-black smoke from exhaust, suspected from coolant and/or oil entering combustion chamber. Associated with louder than normal ticking noise.

engine
+7 more issues
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Market Value

Average
€10,521
Median
€8,750
Range:€1,500 €23,084
Avg Hours:6,600 hrs
Records:4 sales
Recent Sales
1991 · mascus-marketplace€13,500
1991 · mascus-marketplace€23,084
6,600 hours
+2 more sales
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Hours Benchmark

Class: Row Crop (100200 HP)
Average hours at sale for this model
0Avg: 6,600 hrs12,000
Low use400 /year
Typical600 /year
High use850 /year
Typical lifetime12,000 hours
Expected life15 years

Have a specific John Deere 850 VIN to check?

Model data shows the average — a VIN/PIN lookup pulls the per-unit history (theft, recalls, prior owners, hours).

Found on the chassis plate or registration papers

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