For the John Deere 1840, coolant capacity is 25.1 gal (95 L). Fill slowly and recheck the radiator or overflow level after the first heat cycle.
John Deere 1840 Coolant Capacity Specs
| Coolant capacity | 25.1 gal (95 L) |
|---|---|
| Engine horsepower | 70 hp |
| Engine displacement | 239 cu in (3.92 L) |
John Deere 1840 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad compact tractor guide, not the full tractor dataset.
John Deere 1840 Coolant Service Notes
| Coolant capacity note | For the John Deere 1840, the coolant capacity is 25.1 gal (95 L). That is the buying and refill guide for a full cooling-system service |
|---|---|
| Coolant service note | For a full coolant service on the John Deere 1840, plan around 25.1 gal (95 L), refill slowly, run the engine, let it cool and recheck the level |
| Refill check | When refilling the John Deere 1840, do not pour in 25.1 gal (95 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | The John Deere 1840 engine specs listed with this page are engine horsepower 70 hp and engine displacement 239 cu in (3.92 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere 1840 Coolant Capacity FAQ
What is the John Deere 1840 coolant capacity?
The John Deere 1840 coolant capacity is 25.1 gal (95 L). Use this as the cooling-system refill amount and recheck the level after warm-up and cool-down
What should I check after refilling coolant in the John Deere 1840?
The John Deere 1840 may need a small top-up after the first heat cycle. Fill slowly, watch for leaks and recheck the level when cool
Is a coolant top-up enough before using the John Deere 1840?
Use a full coolant service on the John Deere 1840 when the system needs fresh coolant, not just more coolant. Plan the refill around the 25.1 gal (95 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.





