The listed coolant capacity for the John Deere L108 is 1.59 gal (6 L). Keep a little extra coolant available for final top-up after air leaves the system.
John Deere L108 Coolant Capacity Specs
| Coolant capacity | 1.59 gal (6 L) |
|---|---|
| Engine horsepower | 18.5 hp |
| Engine displacement | 30.6 cu in (0.5 L) |
John Deere L108 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere L108 Coolant Service Notes
| Coolant capacity note | The main coolant number for the John Deere L108 is 1.59 gal (6 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 | For a full coolant service on the John Deere L108, plan around 1.59 gal (6 L), refill slowly, run the engine, let it cool and recheck the level |
| Refill check | When refilling the John Deere L108, do not pour in 1.59 gal (6 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level |
| Engine context | The John Deere L108 engine specs listed with this page are engine horsepower 18.5 hp and engine displacement 30.6 cu in (0.5 L). They help identify the machine, but they are not a substitute for the coolant capacity |
John Deere L108 Coolant Capacity FAQ
How many gallons of coolant does the John Deere L108 hold?
The John Deere L108 coolant capacity is 1.59 gal (6 L). Use this as the cooling-system refill amount and recheck the level after warm-up and cool-down
Why does coolant level drop after changing coolant in the John Deere L108?
The John Deere L108 may need a small top-up after the first heat cycle. Fill slowly, watch for leaks and recheck the level when cool
Is topping up enough for the John Deere L108 cooling system?
Use a full coolant service on the John Deere L108 when the system needs fresh coolant, not just more coolant. Plan the refill around the 1.59 gal (6 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.







