Dorman - HD Solutions Engine Coolant Reservoir P/N:603-5103
Keep coolant contained and the cooling system pressurized with the Dorman coolant reservoir 603-5133, a heavy-duty pressurized reservoir that drops in as a direct replacement on the 2005-2007 International 8600 SBA across the 6-11.1L, 6-12.0L, 6-12.5L, L6-10.8L, L6-5.9L and L6-9.3L engines. Engineered and manufactured to match the fit and function of the original part, this coolant tank holds engine coolant while its cap keeps the cooling system pressurized.
Note that mounting hardware is not included and this reservoir does not include a coolant level sensor. Made in Taiwan. Signs a coolant reservoir may need replacing include cracks, coolant seepage, or a tank that no longer holds pressure.
Interchange: 575.10318
57510318 · 2587116C1 · 2587116C92
This part cross-references / interchanges with the following part numbers:
Does the Dorman coolant reservoir cap come with this part?
Yes. It ships with a pressurized coolant cap rated to a maximum of 15 PSI, along with mounting brackets.
What vehicles does the 603-5133 fit?
It's a direct replacement for the 2005-2007 International 8600 SBA equipped with the 6-11.1L, 6-12.0L, 6-12.5L, L6-10.8L, L6-5.9L or L6-9.3L engine. See the Buyer's Guide tab for full details.
Does it include a coolant level sensor or mounting hardware?
No. This reservoir does not include a level sensor, and mounting hardware is not included—consult the vehicle service information for the correct fasteners.
What is the capacity of this coolant reservoir?
It has a maximum capacity of 10.9 L and a working capacity of 4.1 L.
How do I know if my coolant reservoir needs replacing?
Common signs include visible cracks, coolant seepage around the tank, or a reservoir that no longer holds system pressure. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.