Thanks. It was a $40 gamble; happy to share the results. These guards are molded black plastic (no corrosion, no chipping paint) and practically weightless compared to aftermarket metal guards. Having been stranded by the side of the road not far from Nowhere, Montana with a hole in my radiator and a seized engine, I believe anything you can do to protect the radiators is worth the money and effort. If anyone is interested, the Part#s are: 46638556647 and 46638556648.