The New Holland TJ430 tractor cooling system capacity is 21.1 gal | 79.9 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 TJ430 Coolant Capacity Details
Cooling system capacity
21.1 gal | 79.9 L
Coolant type
Extended-life OAT coolant meeting MAT 3724
Coolant change interval
Every 1,500 hours or 3 years
Coolant mixture ratio
50/50 antifreeze and water
Radiator cap pressure
12.8 psi | 70 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
21.1 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 TJ430 Extra Coolant Notes
Engine horsepower
430 hp | 320.7 kW
Engine displacement
12.9 L | 786 cu in
Capacity note
For the New Holland TJ430, the listed cooling system capacity is 21.1 gal | 79.9 L. Buy slightly more coolant than the exact capacity so you have enough for topping off after air burps out.
Mixture note
50/50 antifreeze and water.
Radiator cap note
The radiator cap pressure listed for the New Holland TJ430 is 12.8 psi | 70 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 TJ430 Coolant FAQs
How much coolant does a New Holland TJ430 take?
The New Holland TJ430 takes 21.1 gal | 79.9 L of coolant. That is about normal for the large ag tractor benchmark shown here, so plan it like a standard drain-and-refill rather than a tiny top-up.
Is the New Holland TJ430 coolant capacity normal?
Yes, 21.1 gal | 79.9 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 TJ430?
Do not underestimate this refill. A 21.1 gal | 79.9 L system needs about 22 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 10.6 gal of concentrate and 10.6 gal of distilled water. In metric terms, that is roughly 16 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland TJ430?
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. The listed mix is 50/50 antifreeze and water, so do not run straight water except as a short emergency move.
How much concentrate and water does a New Holland TJ430 need?
With the listed 50/50 antifreeze and water mix, a full 21.1 gal | 79.9 L refill works out to about 10.6 gal of antifreeze concentrate and 10.6 gal of distilled water. If using premix, do not add extra water unless the product label says to.
Can I use a different radiator cap on a New Holland TJ430?
The listed cap pressure is 12.8 psi | 70 kPa. Use the same pressure rating when replacing it. The cap is part of the cooling system, not just a lid, and the wrong rating can cause boil-over, leaks or pressure problems.
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.
