The listed coolant capacity for the John Deere 9400T is 14.77 gal (55.9 L). Keep a little extra coolant available for final top-up after air leaves the system.
Coolant capacity14.77 gal (55.9 L)Cooling system refill amount
John Deere 9400T Coolant Capacity Specs
Coolant capacity
14.77 gal (55.9 L)
Engine horsepower
425 hp
Engine displacement
765 cu in (12.54 L)
John Deere 9400T Coolant Capacity Guide
Coolant capacity guide
This model
14.77 gal
Class low
15 gal
Class typical
28 gal
Class high
45 gal
Compared with a broad 9 series guide, not the full tractor dataset.
John Deere 9400T Coolant Service Notes
Coolant capacity note
The main coolant number for the John Deere 9400T is 14.77 gal (55.9 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 9400T, plan around 14.77 gal (55.9 L), refill slowly, run the engine, let it cool and recheck the level
Refill check
When refilling the John Deere 9400T, do not pour in 14.77 gal (55.9 L) and walk away. Fill slowly, run the engine, let it cool and recheck the level
Engine context
The John Deere 9400T engine specs listed with this page are engine horsepower 425 hp and engine displacement 765 cu in (12.54 L). They help identify the machine, but they are not a substitute for the coolant capacity
John Deere 9400T Coolant Capacity FAQ
How many gallons of coolant does the John Deere 9400T hold?
A full coolant refill on the John Deere 9400T is listed at 14.77 gal (55.9 L). Fill slowly and allow for a small top-up after the first heat cycle
Why does coolant level drop after changing coolant in the John Deere 9400T?
Check the John Deere 9400T coolant level cold after service. Hot coolant is pressurized and dangerous, so let the system cool before opening the cap
Is topping up enough for the John Deere 9400T cooling system?
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 9400T
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.
