Question about 1990 Chevrolet K2500

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How to replace the radiator drain petcock on a 89 k2500

How do you replace the radiator drain petcock on a 1989 chevy k2500 - it's the plastic type and the ''wingnut'' end broke off.

Posted by hugo_lopez on


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Harvey N Tawatao

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There common to break off, you can pick up the replacement drain plug at NAPA and buy a stud retracter to remove the drain plug. if the plug is not leaking, Leave it alone and to drain the radiator, just disconnect the lower radiator hose on the opposite side of the radiator.

Good luck and hope this helps you on your project.

Posted on Jan 05, 2010


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