I bought a non-original heatsink (Duralast aka Spectra Premium) that appears to go with the old OEM connectors and Spectra connectors fits. but had a small leak and these dormans did not fit even though they were declared. They were slightly smaller than the body. (Maybe the seller sent me the wrong ones. I'm not entirely sure.) That being said, the o-rings were actually PERFECT for fitting into the plug body. Literally perfect. This allowed me to stop the leak I was having by reinstalling the original connectors! Although these dormans didn't fit, the o-rings could be reused and my problem was solved. So I'm not entirely disappointed. Just lucky with the draw I guess.
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