It should outlast the car.
Sometimes, there's a gasket on the underside that can go bad after a decade or so.
If you have a threaded cap on your coolant reservoir that is your " radiator cap "
No , the " radiator " cap / pressure cap is the thread on cap on the engine coolant reservoir
The radiator cap is on top of the radiator.
No. You can use the old one as long as it fits securely.
the radiator cap is on top of the radiator you idiots
: The overflow cap (radiator cap) is on top of the tank that sits on top of the dr. side fender under the hood.some of the newer cars do not have a "radiator cap" it goes in to the overflow tank . i would not suggest using radiator stop leak because it can clog up the radiator and heater core on the car if you must use it only as a last resort.
A lot of vehicles don't have the radiator cap on the radiator , they use a thread on style cap on the engine coolant reservoir ( that is the pressure cap / radiator cap )
The thread on cap on your engine coolant reservoir is your pressure cap / radiator cap
The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
The thread on cap on your engine coolant reservoir is your pressure cap / radiator cap
The radiator cap is located on top of the radiator.
On a 2004 Ford Freestar : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap