Coolant capacity for the John Deere L120 is 9.5 gal (36 L). This is the main refill figure for a drain, flush or coolant change.
Coolant capacity9.5 gal (36 L)Cooling system refill amount
John Deere L120 Coolant Capacity Specs
Coolant capacity
9.5 gal (36 L)
Engine model
John Deere L120 tractor features a Briggs
Engine horsepower
20 hp
Engine displacement
40 cu in (0.66 L)
John Deere L120 Coolant Capacity Guide
Coolant capacity guide
This model
9.51 gal
Class low
0.8 gal
Class typical
2.5 gal
Class high
5 gal
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere L120 Coolant Service Notes
Coolant capacity note
The John Deere L120 coolant capacity is 9.5 gal (36 L). Treat it as a cooling-system amount, not a radiator-only top-up amount
Coolant service note
After refilling the John Deere L120, run it to operating temperature and recheck after cool-down. Air pockets can make the level drop
Refill check
For the John Deere L120, 9.5 gal (36 L) is the planned refill amount. The final level may need a small top-up after trapped air leaves the system
Engine context
The John Deere L120 engine specs listed with this page are engine model John Deere L120 tractor features a Briggs, engine horsepower 20 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 L120 Coolant Capacity FAQ
What coolant amount is listed for the John Deere L120?
For coolant service, the John Deere L120 is listed at 9.5 gal (36 L). Buy enough coolant for that amount and confirm the final level at the machine
What is the final check after a John Deere L120 coolant change?
Do not judge the job only by pouring in 9.5 gal (36 L). The final check is the actual radiator or overflow level after the system has burped air
Should I drain and refill the John Deere L120 coolant system?
Topping up is fine for a small low-level correction. If the coolant is old, rusty, oily, diluted or the wrong type, drain and flush the system using the 9.5 gal (36 L) capacity as the refill guide
Official information note
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.
