Give your engine's cooling system the expansion room it needs with the Dorman - OE Solutions Engine Coolant Reservoir 603-614. This front-mounted overflow tank is a direct-fit replacement for the listed applications: the 2002-2006 Nissan Altima and the 2003-2008 Nissan Maxima. It holds coolant that expands out of the radiator as the engine heats up and lets it draw back as things cool, helping keep the system properly filled between service intervals.
- Front-mounted overflow tank: mounts in the front position and connects to the existing coolant hose routing.
- Direct-fit design: a direct-fit replacement for the listed Nissan applications.
- Fresh replacement: a smart swap for an original tank that has cracked, discolored, become brittle, or is leaking coolant.
Signs the original reservoir may need replacing include visible cracks, coolant seepage around the tank, a persistently low coolant level, or a stained, hazed tank that makes the level hard to read. If a failed reservoir is the cause, this unit provides a sealed place for coolant to expand and contract.
Interchange: 2411133 · DAKG-21210 · DAKG21210 · 217108J000 · 5715336000 · 21718 · SK603614 · FRT2301C · Manufacturer part number 603-614 (also 603614).
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does this coolant reservoir fit?
It is a direct-fit replacement for the 2002-2006 Nissan Altima and the 2003-2008 Nissan Maxima. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What does the coolant reservoir do?
It holds coolant that expands out of the radiator as the engine warms and lets it draw back in as the engine cools, helping keep the cooling system properly filled between service intervals.
How do I know if my reservoir needs replacing?
Common signs are visible cracks, coolant seepage around the tank, a persistently low coolant level, or a stained, brittle tank. Diagnose the source of any coolant loss before replacing.
Where is this reservoir mounted?
This is a front-mounted overflow tank that connects to the existing coolant hose routing on the listed applications.
What interchange numbers does this part replace?
It cross-references 2411133, DAKG-21210 (DAKG21210), 217108J000, 5715336000, 21718, SK603614, and FRT2301C. The manufacturer part number is 603-614.
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