The John Deere D140 takes 1 gal (3.7 L) of coolant. After refilling, run the engine, let it cool and confirm the final level.
John Deere D140 Coolant Capacity Specs
| Coolant capacity | 1 gal (3.7 L) |
|---|---|
| Engine horsepower | 22 hp |
| Engine displacement | 40 cu in (0.66 L) |
John Deere D140 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad ztrak / mower guide, not the full tractor dataset.
John Deere D140 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 D140, 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 D140, 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 John Deere D140 engine specs listed with this page are engine horsepower 22 hp and engine displacement 40 cu in (0.66 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere D140 Coolant Capacity FAQ
What is the John Deere D140 cooling system capacity?
A full coolant refill on the John Deere D140 is listed at 1 gal (3.7 L). Fill slowly and allow for a small top-up after the first heat cycle
Can the John Deere D140 coolant level drop after refilling?
Check the John Deere D140 coolant level cold after service. Hot coolant is pressurized and dangerous, so let the system cool before opening the cap
Should I flush the John Deere D140 cooling system or just top it up?
If coolant condition is good, topping up may be enough. If it is old or contaminated, a full drain and refill is safer for the John Deere D140
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.
