The New Holland T9.600 SmartTrax II tractor cooling system capacity is 66 gal | 249.8 L, coolant type is extended-life OAT coolant meeting MAT 3724, and coolant change interval is every 1,500 hours or 3 years.
New Holland T9.600 SmartTrax II Coolant Capacity Details
Cooling system capacity
66 gal | 249.8 L
Coolant type
Extended-life OAT coolant meeting MAT 3724
Coolant change interval
Every 1,500 hours or 3 years
Radiator cap pressure
15 psi | 103 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
66 gal
Average
16 gal
Low
10 gal
High
28 gal
Benchmarks use practical low, average and high coolant-capacity ranges for the large ag tractor category. Use the exact tractor manual before buying coolant.
New Holland T9.600 SmartTrax II Extra Coolant Notes
Engine horsepower
605 hp | 451.1 kW
Engine displacement
12.9 L | 787 cu in
Capacity note
For the New Holland T9.600 SmartTrax II, the listed cooling system capacity is 66 gal | 249.8 L. Buy slightly more coolant than the exact capacity so you have enough for topping off after air burps out.
Mixture note
Use the coolant type listed above and match the antifreeze/water mix to the operator manual and local freezing conditions.
Radiator cap note
The radiator cap pressure listed for the New Holland T9.600 SmartTrax II is 15 psi | 103 kPa. Do not replace it with a random cap unless the pressure rating matches.
Refill note
Refill slowly, run the tractor until warm with the heater circuit open if fitted, let it cool, then recheck the coolant level. Never remove a hot radiator cap under pressure.
New Holland T9.600 SmartTrax II Coolant FAQs
How much coolant does a New Holland T9.600 SmartTrax II take?
The New Holland T9.600 SmartTrax II takes 66 gal | 249.8 L of coolant. That is well above the normal large ag tractor benchmark shown here, so treat it as a full cooling-system service job, not a quick top-up.
Is 66 gal | 249.8 L a lot of coolant for a New Holland T9.600 SmartTrax II?
Yes. For this tractor category, 66 gal | 249.8 L is well above normal. This is the sort of refill where you want all coolant on hand before draining, because stopping halfway through the job is annoying and messy.
How many coolant jugs do I need for a New Holland T9.600 SmartTrax II?
Do not underestimate this refill. A 66 gal | 249.8 L system needs about 66 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 33 gal of concentrate and 33 gal of distilled water. In metric terms, that is roughly 50 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland T9.600 SmartTrax II?
Because the listed coolant is extended-life OAT coolant meeting MAT 3724, the clean move is to stay with the same approved chemistry. Do not casually mix it with old green conventional coolant; if the old coolant type is unknown, flush first or confirm what is already in the system.
Can I use a different radiator cap on a New Holland T9.600 SmartTrax II?
The listed cap pressure is 15 psi | 103 kPa. That higher-pressure cap helps raise the boiling point, but only if the radiator neck, hoses and overflow path are in good shape. A weak cap or damaged seat can still cause coolant loss.
When should the New Holland T9.600 SmartTrax II coolant be changed?
Use whichever limit comes first for the New Holland T9.600 SmartTrax II: every 1,500 hours or 3 years. Low-hour tractors can still age out on time, because corrosion protection gets weaker even when the coolant still looks clean.
Official information note
Mistakes do happen. Coolant specs can change by year, engine, market, radiator option and coolant chemistry. Check the operator manual, parts book and official newholland.com website before draining, flushing or refilling the cooling system.
