For the John Deere 40A, coolant capacity is 9.51 gal (36 L). Fill slowly and recheck the radiator or overflow level after the first heat cycle.
John Deere 40A Coolant Capacity Specs
| Coolant capacity | 9.51 gal (36 L) |
|---|---|
| Engine horsepower | 34 hp |
| Engine displacement | 114.2 cu in (1.87 L) |
John Deere 40A Coolant Capacity Guide
Coolant capacity guide
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere 40A Coolant Service Notes
| Coolant capacity note | For the John Deere 40A, the coolant capacity is 9.51 gal (36 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 40A, plan around 9.51 gal (36 L), refill slowly, run the engine, let it cool and recheck the level |
| Refill check | When refilling the John Deere 40A, do not pour in 9.51 gal (36 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | For comparison, the John Deere 40A engine details listed here are engine horsepower 34 hp and engine displacement 114.2 cu in (1.87 L). The coolant capacity remains the service number to use for refilling |
John Deere 40A Coolant Capacity FAQ
What is the John Deere 40A coolant capacity?
The John Deere 40A coolant capacity is 9.51 gal (36 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 40A?
The John Deere 40A 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 40A?
Use a full coolant service on the John Deere 40A when the system needs fresh coolant, not just more coolant. Plan the refill around the 9.51 gal (36 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.
