Keep an eye on coolant level and give your cooling system room to breathe with the Dorman - OE Solutions Engine Coolant Reservoir 603-387, a front-mounted replacement tank for the 1995-1998 Nissan 200SX, 1996-2000 Nissan Lucino, 1995-2000 Nissan Sentra, 1993-2004 Nissan Tsubame, and 1998-2017 Nissan Tsuru. It installs as a direct-fit replacement for the listed applications when the original reservoir cracks, discolors, or leaks.
- Overflow storage: Holds engine coolant as it expands and contracts with temperature, letting excess return to the system as it cools.
- Front-mounted position: Cataloged for the front reservoir location on the listed Nissan applications.
- Level monitoring: Gives you a dedicated tank to check coolant level and top off when needed.
- Direct replacement: Designed to replace an original reservoir that is missing, cracked, or has failed over time.
Signs the original reservoir may need replacing include visible cracks, weeping seams, coolant stains near the tank, or a tank that no longer holds level. If a failed reservoir is the source of your coolant loss, this replaces it; diagnose the cause before ordering.
Interchange: 21710 · DAKG-21610 · DAKG-21710 · DAKG-4150AM · DN21710T · 217100M000 · 21710F4300 · 28910. Manufacturer part number 603-387 · Part Eazy SKU SK603387.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does this coolant reservoir fit?
It fits the 1995-1998 Nissan 200SX, 1996-2000 Nissan Lucino, 1995-2000 Nissan Sentra, 1993-2004 Nissan Tsubame, and 1998-2017 Nissan Tsuru. See the Buyer's Guide tab to confirm your vehicle.
What does the engine coolant reservoir do?
It stores coolant as it expands and contracts with engine temperature and gives you a place to check and top off the coolant level.
Where is this reservoir mounted?
It is cataloged for the front reservoir position on the listed Nissan applications.
How do I know if my coolant reservoir needs replacing?
Common signs include visible cracks, weeping seams, coolant stains around the tank, or a tank that no longer holds coolant level. Diagnose the cause first.
What is the part number for this reservoir?
The manufacturer part number is Dorman 603-387, with Part Eazy SKU SK603387. It also cross-references interchange numbers such as 21710, DN21710T, and 28910.
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