The New Holland TC33 tractor cooling system capacity is 1.5 gal | 5.7 L, coolant type is extended-life OAT coolant, and coolant change interval is every 1,500 hours or 3 years.
New Holland TC33 Coolant Capacity Details
Cooling system capacity
1.5 gal | 5.7 L
Coolant type
Extended-life OAT 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
1.5 gal
Average
2.8 gal
Low
1.5 gal
High
5 gal
Benchmarks use practical low, average and high coolant-capacity ranges for the compact tractor category. Use the exact tractor manual before buying coolant.
New Holland TC33 Extra Coolant Notes
Engine horsepower
33 hp | 24.6 kW
Engine displacement
1.5 L | 91.5 cu in
Capacity note
For the New Holland TC33, the listed cooling system capacity is 1.5 gal | 5.7 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 TC33 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 TC33 Coolant FAQs
How much coolant does a New Holland TC33 take?
The New Holland TC33 takes 1.5 gal | 5.7 L of coolant. That is on the low side for the compact tractor benchmark, which makes the refill cheaper, but the level still needs to be checked after the first heat cycle.
Is 1.5 gal | 5.7 L a small coolant capacity for a New Holland TC33?
It is low compared with the benchmark on this page. That makes the job cheaper, but it does not make coolant choice or bleeding less important.
How many coolant jugs do I need for a New Holland TC33?
This is a manageable refill amount. A 1.5 gal | 5.7 L system needs about 2 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 0.8 gal of concentrate and 0.8 gal of distilled water. In metric terms, that is roughly 2 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland TC33?
Because the listed coolant is extended-life OAT coolant, 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 TC33?
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 TC33 coolant be changed?
Use whichever limit comes first for the New Holland TC33: 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.
