The New Holland Workmaster 40C tractor cooling system capacity is 7.4 gal | 28 L, coolant type is extended-life OAT coolant, and coolant change interval is every 1,500 hours or 3 years.
New Holland Workmaster 40C Coolant Capacity Details
Cooling system capacity
7.4 gal | 28 L
Coolant type
Extended-life OAT coolant
Coolant change interval
Every 1,500 hours or 3 years
Coolant mixture ratio
50/50 antifreeze and water
Radiator cap pressure
10 psi | 70 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
7.4 gal
Average
5.5 gal
Low
3 gal
High
9 gal
Benchmarks use practical low, average and high coolant-capacity ranges for the utility tractor category. Use the exact tractor manual before buying coolant.
New Holland Workmaster 40C Extra Coolant Notes
Engine horsepower
40 hp | 29.8 kW
Engine displacement
1.9 L | 116 cu in
Capacity note
For the New Holland Workmaster 40C, the listed cooling system capacity is 7.4 gal | 28 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 Workmaster 40C is 10 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 Workmaster 40C Coolant FAQs
How much coolant does a New Holland Workmaster 40C take?
The New Holland Workmaster 40C takes 7.4 gal | 28 L of coolant. That is about normal for the utility tractor benchmark shown here, so plan it like a standard drain-and-refill rather than a tiny top-up.
Is the New Holland Workmaster 40C coolant capacity normal?
Yes, 7.4 gal | 28 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 Workmaster 40C?
This is more than a small top-off job. A 7.4 gal | 28 L system needs about 8 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 3.7 gal of concentrate and 3.7 gal of distilled water. In metric terms, that is roughly 6 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland Workmaster 40C?
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. 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 Workmaster 40C need?
With the listed 50/50 antifreeze and water mix, a full 7.4 gal | 28 L refill works out to about 3.7 gal of antifreeze concentrate and 3.7 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 Workmaster 40C?
The listed cap pressure is 10 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.
