The Case IH Magnum 385 tractor cooling system capacity is 3 gal | 11.4 L, coolant type is extended-life OAT coolant, and coolant change interval is every 6,000 hours or 6 years.
Case IH Magnum 385 Coolant Capacity Details
Cooling system capacity
3 gal | 11.4 L
Coolant type
Extended-life OAT coolant
Coolant change interval
Every 6,000 hours or 6 years
Radiator cap pressure
14.5 psi | 100 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
3 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.
Case IH Magnum 385 Extra Coolant Notes
Engine horsepower
385 hp
Engine displacement
8.7 L | 530 cu in
Capacity note
For the Case IH Magnum 385, the listed cooling system capacity is 3 gal | 11.4 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 Case IH Magnum 385 is 14.5 psi | 100 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.
Case IH Magnum 385 Coolant FAQs
How much coolant does a Case IH Magnum 385 take?
The Case IH Magnum 385 takes 3 gal | 11.4 L of coolant. That is on the low side for the utility tractor benchmark, which makes the refill cheaper, but the level still needs to be checked after the first heat cycle.
Is 3 gal | 11.4 L a small coolant capacity for a Case IH Magnum 385?
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 Case IH Magnum 385?
This is a manageable refill amount. A 3 gal | 11.4 L system needs about 4 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 1.5 gal of concentrate and 1.5 gal of distilled water. In metric terms, that is roughly 3 x 5 L containers for a full premix refill.
Can I mix coolant types in a Case IH Magnum 385?
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 Case IH Magnum 385?
The listed cap pressure is 14.5 psi | 100 kPa. That higher-pressure cap helps raise the boiling point, but only if the radiator neck, hoses and overflow path are in good shape. A weak cap or damaged seat can still cause coolant loss.
When should the Case IH Magnum 385 coolant be changed?
Use whichever limit comes first for the Case IH Magnum 385: every 6,000 hours or 6 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 caseih.com website before draining, flushing or refilling the cooling system.
