Mini short neck radiator cap as fitted to new 2/3/4 cores (0.750")
508-13 Mini short neck radiator cap
A radiator cap is so important to your cooling system, A propoer working radiator cap will hold 13 pounds of pressure before it allows the coolant to overflow. What this does is raise the boiling point of the water/coolant in your cooling system, so if it is faulty you can overheat your car/loose water and quite possibly do terminal damage to your motor. Dont risk it, Just replace it!
This is the radiator cap fitted to new 2/3/4 core radiators sold by us. If you are unsure compare your current one to either this one or the 517-13 as seen in our store.
The 517-13 is more commanly fitted to original core radiators.
This cap has holds 13 pound of pressure on your cooling system