Dorman - HD Solutions Engine Coolant Reservoir P/N:603-5505
Hold a pressurized reserve of coolant for your heavy-duty cooling system with this Dorman coolant recovery tank, part number 603-5201 from Dorman HD Solutions. It is a direct-fit replacement for the 2001-2007 Freightliner Century Class, the 2001-2007 and 2010-2014 Freightliner Columbia, and the 2010-2015 Freightliner Coronado. Coverage includes many engines, among them the L6-12.7L and L6-14.0L; see the Buyer's Guide tab for the full list.
This pressurized reservoir mounts in the front location and holds engine coolant for the cooling system. The Dorman coolant overflow tank comes with its own cap.
The box contains one coolant reservoir and one cap. The listed applications use one tank. The reservoir has two mounting holes. Mounting hardware and mounting brackets are not included, so check the vehicle service information for the correct fasteners and whether the originals may be reused. Country of origin: Taiwan.
Signs a reservoir may need replacing include cracks in the tank, coolant seeping from the reservoir, or a cap that no longer seals. Find the source of any leak before you replace parts.
Interchange: 575.1011 · S-20397 · 503.086 · C01.020S10
5751011 · S20397 · 503086 · C01020S10 · 0520529000 · 0523045000 · 0523045001 · SK6035201
This part cross-references / interchanges with the following part numbers:
What does an engine coolant recovery tank do?
It holds a reserve of engine coolant in a pressurized reservoir and gives the coolant room to expand and contract with temperature. The Dorman 603-5201 includes a spring-loaded twist cap rated at 15 psi maximum.
Which Freightliner trucks does this reservoir fit?
It fits the 2001-2007 Freightliner Century Class, the 2001-2007 and 2010-2014 Freightliner Columbia, and the 2010-2015 Freightliner Coronado with the listed engines. Check the Buyer's Guide tab for your engine.
What comes with this Dorman radiator overflow tank?
You get one plastic coolant reservoir and one spring-loaded twist cap. Mounting hardware and mounting brackets are not included.
How is the reservoir mounted?
It has two mounting holes. Hardware is not included, so check the vehicle service information for the correct fasteners and whether the originals may be reused.
What are signs my coolant reservoir may need replacing?
Signs include cracks in the tank, coolant seeping from the reservoir, or a cap that no longer holds pressure. Hoses and other parts can cause similar leaks, so find the source before you replace parts.
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.