Keep your cooling system topped off and manage coolant expansion with the Dorman - OE Solutions Engine Coolant Reservoir 603-841. It drops in as a direct-fit replacement for the 2016-2018 FIAT 500X and the 2015-2021 JEEP RENEGADE, providing the tank that stores overflow coolant and lets the system draw fluid back as it heats and cools.
Coolant storage & overflow: Holds engine coolant and accommodates expansion and contraction as the system heats up and cools down.
Direct-fit replacement: A direct-fit replacement reservoir for the listed applications.
Replacement for a failed unit: A cracked, leaking, or brittle original reservoir can lose coolant and drop the system level — if a failed reservoir is the cause, this replaces it.
Signs the original reservoir may need replacing include visible cracks, coolant seepage around the tank, or a level that keeps falling. Always diagnose the source of any coolant loss before replacing parts.
It is a direct-fit replacement for the 2016-2018 FIAT 500X and the 2015-2021 JEEP RENEGADE. Confirm your specific vehicle in the Buyer's Guide tab.
What does an engine coolant reservoir do?
It stores overflow coolant and accommodates the fluid's expansion and contraction as the engine heats up and cools down, letting coolant return to the system as needed.
What are the signs my coolant reservoir needs replacing?
Common signs include visible cracks, coolant seepage around the tank, brittle plastic, or a coolant level that keeps dropping. Diagnose the source of any coolant loss first.
What part numbers does 603-841 replace?
It interchanges with 68096261AA, 68246940AA, 68248083AA, 68249136AA, 68303699AA, 68327756AA, 68442532AA, and CH3014170.
Is this a direct-fit replacement?
Yes. It is a direct-fit replacement reservoir for the listed applications.
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit...
Non-Pressurized Coolant ReservoirThis replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered...
Pressurized Coolant ReservoirThis replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and...
Non-Pressurized Coolant ReservoirThis replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered...
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.
