Originally Posted By Locomotion
I never knew that they made a special plug for the dipstick hole. But I always use the proper sized allen-head cap screw (1/4" or 5/16"?) and silicone it in.


Chrysler used an aluminum plug on the truck blocks since the dipstick was mounted in the pan. I just copied the truck block plug and started to reproduce them. I've been making them for years. Lots of people buy them so I keep making them.