The John Deere Z920M takes 3.3 gal (12.5 L) of coolant. Use coolant compatible with John Deere Cool-Gard II and follow the listed 40/60 coolant and water mix guidance.
Coolant capacity3.3 gal (12.5 L)Cooling system refill amount
Antifreeze mix40/60 coolant and water mixFreeze/boil protection
John Deere Z920M Coolant Capacity Specs
Coolant capacity
3.3 gal (12.5 L)
Coolant type
John Deere Cool-Gard II
Antifreeze mix
40/60 coolant and water mix
Engine model
Kawasaki FX730V
Engine horsepower
23.5 hp
Engine displacement
44.3 cu in (0.73 L)
John Deere Z920M Coolant Capacity Guide
Coolant capacity guide
This model
3.3 gal
Class low
0.5 gal
Class typical
2.5 gal
Class high
4.5 gal
Compared with a broad ztrak / mower guide, not the full tractor dataset.
John Deere Z920M Coolant Service Notes
Coolant capacity note
The useful service number here is 3.3 gal (12.5 L). Keep some extra coolant available because trapped air can lower the level after the first warm-up
Coolant service note
The John Deere Z920M cooling system should be refilled close to 3.3 gal (12.5 L), with coolant choice guided by John Deere Cool-Gard II and 40/60 coolant and water mix
Coolant type note
Coolant type matters on the John Deere Z920M. The listed type is John Deere Cool-Gard II, so avoid mixing random antifreeze unless compatibility is clear
Antifreeze mix note
For the John Deere Z920M, the antifreeze mix is listed as 40/60 coolant and water mix. Use the correct mix rather than topping up repeatedly with plain water
Refill check
Use the 3.3 gal (12.5 L) capacity to buy enough coolant for the John Deere Z920M, but finish the job by checking the actual level marks
Engine context
The John Deere Z920M engine specs listed with this page are engine model Kawasaki FX730V, engine horsepower 23.5 hp, and engine displacement 44.3 cu in (0.73 L). They help identify the machine, but they are not a substitute for the coolant capacity
John Deere Z920M Coolant Capacity FAQ
How much coolant should I buy for the John Deere Z920M?
Use 3.3 gal (12.5 L) as the coolant-change amount for the John Deere Z920M. The final level should still be checked at the radiator or overflow bottle
Is John Deere Cool-Gard II listed for the John Deere Z920M?
Use coolant compatible with John Deere Cool-Gard II for the John Deere Z920M. Capacity tells you how much; coolant type tells you what to use
What antifreeze ratio is listed for the John Deere Z920M?
The John Deere Z920M uses 40/60 coolant and water mix where that mix is specified. Confirm the mix against your climate and manual
Do I fill the John Deere Z920M exactly to capacity or check the level marks?
The 3.3 gal (12.5 L) number helps you plan the refill. The actual finish point is the correct level mark after warm-up, cool-down and leak checking
Can I just add coolant to the John Deere Z920M if the level is low?
For the John Deere Z920M, use the 3.3 gal (12.5 L) capacity when planning a full drain or flush. Topping up only solves low level, not worn-out coolant
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.
