The New Holland Workmaster 50 tractor cooling system capacity is 10.5 gal | 39.7 L, coolant type is extended-life OAT coolant, and coolant change interval is every 1,500 hours or 3 years.
New Holland Workmaster 50 Coolant Capacity Details
| Cooling system capacity | 10.5 gal | 39.7 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
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 50 Extra Coolant Notes
| Engine horsepower | 53 hp | 39.5 kW |
|---|---|
| Engine displacement | 2.2 L | 134.1 cu in |
| Capacity note | For the New Holland Workmaster 50, the listed cooling system capacity is 10.5 gal | 39.7 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 50 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 50 Coolant FAQs
How much coolant does a New Holland Workmaster 50 take?
The New Holland Workmaster 50 takes 10.5 gal | 39.7 L of coolant. That is well above the normal utility tractor benchmark shown here, so treat it as a full cooling-system service job, not a quick top-up.
Is 10.5 gal | 39.7 L a lot of coolant for a New Holland Workmaster 50?
Yes. For this tractor category, 10.5 gal | 39.7 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 Workmaster 50?
Do not underestimate this refill. A 10.5 gal | 39.7 L system needs about 11 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 5.2 gal of concentrate and 5.2 gal of distilled water. In metric terms, that is roughly 8 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland Workmaster 50?
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 50 need?
With the listed 50/50 antifreeze and water mix, a full 10.5 gal | 39.7 L refill works out to about 5.2 gal of antifreeze concentrate and 5.2 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 50?
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.
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.

