It’s a press fit and it’s glued like freeze plugs…. My guess is you are going to have to drill it out….. but talk to Cummins local dealer or go to a truck dealership and ask how to remove itWell, have tried threading the bolt in...threads in just fine, but after applying some force to the bolt the dipstick tube the metal is so soft it just pulls out. 5/16" fit and tried both machine and lag threads. Obviously put some heat on to no avail.
The extractor snugs up well, but I am afraid to break it off and go from relative soft metal stuck in the block to hard metal being stuck in the block.
Any thoughts???
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then ask how to install the new one