This is the plastic top of the radiator which includes the radiator neck which often cracks and breaks. It needs to be crimped on to your existing radiator. I was going to replace my top but I decided that I would put in an entire new Behr radiator instead. Yours for $25 (my cost) plus shipping. This top is good cheap fix for the 300D and 300SD.

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85 300CD Signal Red/Tan sold
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