For the John Deere RX73, coolant capacity is 9.5 gal (36 L). Coolant choice is listed as John Deere Cool-Gard II, with 40/60 coolant and water mix guidance.
Coolant capacity9.5 gal (36 L)Cooling system refill amount
Antifreeze mix40/60 coolant and water mixFreeze/boil protection
John Deere RX73 Coolant Capacity Specs
Coolant capacity
9.5 gal (36 L)
Coolant type
John Deere Cool-Gard II
Antifreeze mix
40/60 coolant and water mix
Engine horsepower
12 hp
Engine displacement
30.5 cu in (0.5 L)
John Deere RX73 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 RX73 Coolant Service Notes
Coolant capacity note
The John Deere RX73 cooling system is listed at 9.5 gal (36 L). Final level can settle after the first heat cycle, so recheck the level after service
Coolant service note
For a full coolant service on the John Deere RX73, plan around 9.5 gal (36 L) and match the listed coolant guidance: John Deere Cool-Gard II and 40/60 coolant and water mix
Coolant type note
The John Deere RX73 coolant type is John Deere Cool-Gard II. Wrong coolant chemistry can reduce corrosion, freeze and boil protection
Antifreeze mix note
The listed mix for the John Deere RX73 is 40/60 coolant and water mix. Keep the coolant strength in range after a drain, flush or top-up
Refill check
After a drain and refill on the John Deere RX73, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle
Engine context
For comparison, the John Deere RX73 engine details listed here are engine horsepower 12 hp and engine displacement 30.5 cu in (0.5 L). The coolant capacity remains the service number to use for refilling
John Deere RX73 Coolant Capacity FAQ
How much coolant does the John Deere RX73 take?
Plan around 9.5 gal (36 L) when servicing coolant on the John Deere RX73. Recheck the system when cool because air pockets can lower the level
Does the John Deere RX73 use John Deere Cool-Gard coolant?
Coolant type for the John Deere RX73 is listed as John Deere Cool-Gard II. If the system has been filled with something else before, confirm compatibility before mixing
What coolant mix is listed for the John Deere RX73?
The John Deere RX73 coolant mix guidance is 40/60 coolant and water mix. Keep the mix consistent when topping up so freeze and boil protection stay in range
Do I need to recheck coolant level after servicing the John Deere RX73?
Yes. Use the 9.5 gal (36 L) figure as the refill guide, but always recheck level after warm-up and cool-down because trapped air can move through the system
When should contaminated coolant be replaced in the John Deere RX73?
If the John Deere RX73 coolant is only slightly low and otherwise clean, topping up with compatible coolant can be enough. If condition is poor, drain and refill instead
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.
