Material:
Plastic
Radiator Drain Cock
Get Parts That Fit
Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle.
Select A VehicleGet Parts That Fit
Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle.
A radiator drain petcock valve, or shut-off valve, allows the radiator to be drained without removing it from the vehicle. This simple valve or bolt can be easily unscrewed to drain, then sealed back to fill. Frequent use of the radiator petcock or corrosion can cause its threads to strip. When this happens, the petcock can no longer seal your radiator from coolant leaks. If you notice your car is leaking coolant, check the condition of the radiator petcock. If you notice a leak from this area, replace the petcock with a new one from O'Reilly Auto Parts. We also carry all the hoses, hose clamps, and coolant you need for your complete repair.
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