The New Holland TN65 tractor cooling system capacity is 11.1 gal | 42 L, coolant type is 50/50 ethylene glycol-based coolant, and coolant change interval is every 1,500 hours or 3 years.
New Holland TN65 Coolant Capacity Details
Cooling system capacity
11.1 gal | 42 L
Coolant type
50/50 ethylene glycol-based coolant
Coolant change interval
Every 1,500 hours or 3 years
Radiator cap pressure
7 psi | 48 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
11.1 gal
Average
10 gal
Low
6 gal
High
16 gal
Benchmarks use practical low, average and high coolant-capacity ranges for the row-crop tractor category. Use the exact tractor manual before buying coolant.
New Holland TN65 Extra Coolant Notes
Engine horsepower
The New Holland TN65 tractor’s engine produces 57 gross horsepower (42.5 kW) and 53 net horsepower (39.5 kW)
Engine displacement
2.9 L | 179 cu in
Capacity note
For the New Holland TN65, the listed cooling system capacity is 11.1 gal | 42 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 TN65 is 7 psi | 48 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 TN65 Coolant FAQs
How much coolant does a New Holland TN65 take?
The New Holland TN65 takes 11.1 gal | 42 L of coolant. That is about normal for the row-crop tractor benchmark shown here, so plan it like a standard drain-and-refill rather than a tiny top-up.
Is the New Holland TN65 coolant capacity normal?
Yes, 11.1 gal | 42 L lands about where you would expect for this tractor category. The main thing is buying enough for a complete refill plus a small top-off amount.
How many coolant jugs do I need for a New Holland TN65?
Do not underestimate this refill. A 11.1 gal | 42 L system needs about 12 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 5.5 gal of concentrate and 5.5 gal of distilled water. In metric terms, that is roughly 9 x 5 L containers for a full premix refill.
What coolant should I use in a New Holland TN65?
The listed coolant is 50/50 ethylene glycol-based coolant. Ethylene glycol tells you the base coolant, but the additive package still matters on diesel engines, so match the manual or an approved equivalent.
Can I use a different radiator cap on a New Holland TN65?
The listed cap pressure is 7 psi | 48 kPa. That is a lower-pressure cap, so do not upgrade it to a higher-pressure cap just because it sounds stronger. Too much cap pressure can stress hoses, radiator seams and older seals.
When should the New Holland TN65 coolant be changed?
Use whichever limit comes first for the New Holland TN65: 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.
