The listed coolant capacity for the John Deere LTR166 is 0.53 gal (2 L). Keep a little extra coolant available for final top-up after air leaves the system.
John Deere LTR166 Coolant Capacity Specs
| Coolant capacity | 0.53 gal (2 L) |
|---|---|
| Engine model | John Deere LTR166 tractor features a Briggs |
| Engine horsepower | 16 hp |
| Engine displacement | 29.3 cu in (0.48 L) |
John Deere LTR166 Coolant Capacity Guide
Coolant capacity guide
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere LTR166 Coolant Service Notes
| Coolant capacity note | The main coolant number for the John Deere LTR166 is 0.53 gal (2 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 | After refilling the John Deere LTR166, run it to operating temperature and recheck after cool-down. Air pockets can make the level drop |
| Refill check | For the John Deere LTR166, 0.53 gal (2 L) is the planned refill amount. The final level may need a small top-up after trapped air leaves the system |
| Engine context | For comparison, the John Deere LTR166 engine details listed here are engine model John Deere LTR166 tractor features a Briggs, engine horsepower 16 hp, and engine displacement 29.3 cu in (0.48 L). The coolant capacity remains the service number to use for refilling |
John Deere LTR166 Coolant Capacity FAQ
How many gallons of coolant does the John Deere LTR166 hold?
For coolant service, the John Deere LTR166 is listed at 0.53 gal (2 L). Buy enough coolant for that amount and confirm the final level at the machine
Why does coolant level drop after changing coolant in the John Deere LTR166?
Do not judge the job only by pouring in 0.53 gal (2 L). The final check is the actual radiator or overflow level after the system has burped air
Is topping up enough for the John Deere LTR166 cooling 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 0.53 gal (2 L) capacity as the refill guide
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.







