The listed coolant capacity for the John Deere 6510 is 4.09 gal (15.5 L). Keep a little extra coolant available for final top-up after air leaves the system.
John Deere 6510 Coolant Capacity Specs
| Coolant capacity | 4.09 gal (15.5 L) |
|---|---|
| Engine horsepower | 105 hp |
| Engine displacement | 414 cu in (6.78 L) |
John Deere 6510 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad 6 series guide, not the full tractor dataset.
John Deere 6510 Coolant Service Notes
| Coolant capacity note | The main coolant number for the John Deere 6510 is 4.09 gal (15.5 L). Use it as the cooling-system refill amount, then check the radiator or overflow level after the engine has warmed up and cooled down |
|---|---|
| Coolant service note | The John Deere 6510 should be filled by capacity first, then verified by the actual level marks after the engine cools |
| Refill check | After a drain and refill on the John Deere 6510, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle |
| Engine context | For comparison, the John Deere 6510 engine details listed here are engine horsepower 105 hp and engine displacement 414 cu in (6.78 L). The coolant capacity remains the service number to use for refilling |
John Deere 6510 Coolant Capacity FAQ
What is the full coolant refill capacity for the John Deere 6510?
Plan around 4.09 gal (15.5 L) when servicing coolant on the John Deere 6510. Recheck the system when cool because air pockets can lower the level
Should the John Deere 6510 coolant be checked hot or cold?
Yes. Use the 4.09 gal (15.5 L) figure as the refill guide, but always recheck level after warm-up and cool-down because trapped air can move through the system
What signs mean the John Deere 6510 coolant should be flushed?
If the John Deere 6510 coolant is only slightly low and otherwise clean, topping up with compatible coolant can be enough. If condition is poor, drain and refill instead
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.







