The John Deere 6M 145 takes 1 gal (3.7 L) of coolant. After refilling, run the engine, let it cool and confirm the final level.
John Deere 6M 145 Coolant Capacity Specs
| Coolant capacity | 1 gal (3.7 L) |
|---|---|
| Engine horsepower | 143.5 hp |
| Engine displacement | 414.2 cu in (6.79 L) |
John Deere 6M 145 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad 6 series guide, not the full tractor dataset.
John Deere 6M 145 Coolant Service Notes
| Coolant capacity note | The useful service number here is 1 gal (3.7 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 6M 145, plan around 1 gal (3.7 L), refill slowly, run the engine, let it cool and recheck the level |
| Refill check | When refilling the John Deere 6M 145, do not pour in 1 gal (3.7 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | The engine context for the John Deere 6M 145 is engine horsepower 143.5 hp and engine displacement 414.2 cu in (6.79 L). Use this for comparison only; the refill amount is the coolant capacity above |
John Deere 6M 145 Coolant Capacity FAQ
What is the John Deere 6M 145 cooling system capacity?
The John Deere 6M 145 coolant capacity is 1 gal (3.7 L). Use this as the cooling-system refill amount and recheck the level after warm-up and cool-down
Can the John Deere 6M 145 coolant level drop after refilling?
The John Deere 6M 145 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 6M 145 cooling system or just top it up?
Use a full coolant service on the John Deere 6M 145 when the system needs fresh coolant, not just more coolant. Plan the refill around the 1 gal (3.7 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.
