The John Deere 850 takes 1.5 gal (5.7 L) of coolant. After refilling, run the engine, let it cool and confirm the final level.
John Deere 850 Coolant Capacity Specs
| Coolant capacity | 1.5 gal (5.7 L) |
|---|---|
| Engine model | Yanmar three |
| Engine horsepower | 25 hp |
| Engine displacement | 79.3 cu in (1.3 L) |
John Deere 850 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere 850 Coolant Service Notes
| Coolant capacity note | The useful service number here is 1.5 gal (5.7 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up |
|---|---|
| Coolant service note | For a full coolant service on the John Deere 850, plan around 1.5 gal (5.7 L), refill slowly, run the engine, let it cool and recheck the level |
| Refill check | When refilling the John Deere 850, do not pour in 1.5 gal (5.7 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | The John Deere 850 engine specs listed with this page are engine model Yanmar three, engine horsepower 25 hp, and engine displacement 79.3 cu in (1.3 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere 850 Coolant Capacity FAQ
What is the John Deere 850 cooling system capacity?
The John Deere 850 coolant capacity is 1.5 gal (5.7 L). Use this as the cooling-system refill amount and recheck the level after warm-up and cool-down
Can the John Deere 850 coolant level drop after refilling?
The John Deere 850 may need a small top-up after the first heat cycle. Fill slowly, watch for leaks and recheck the level when cool
Should I flush the John Deere 850 cooling system or just top it up?
Use a full coolant service on the John Deere 850 when the system needs fresh coolant, not just more coolant. Plan the refill around the 1.5 gal (5.7 L) capacity
Mistakes do happen. Tractor coolant capacity and coolant type can change by year, market, engine, radiator setup and service procedure. Check the operator manual, service manual and official deere.com website before draining, flushing or refilling the cooling system.
