My wife has a 2018 sportster iron. It has the damned oil cap problem. It's a real pain to get the thing to pop up. What I am looking for is a cap that takes away the pop up option and just screws in. Is there such a thing? I would even go as far as to change out the oil tank just to get a screw in cap without the pop up. Let me know if you have come across this please.

 

Never mind guys and gals. I have found it.

 

That tank won’t likely fit a 2018. It looks like my 1991 tank, lots of changes since then. But, depending on your fabrication skills, anything is possible. Good luck!

The stick is a slip fit too, not screw in.

John

 

thanks. With a new tank I will tig in a screw in cap

 

My dipstick holds securely as is. It just pulls straight out, no need for a screw cap. Basically, its a rubber stopper.

Seems to me a little fiddling with the pop up cap might be less hassle. Hopefully someone else has come up with a fix. I recall reading something about this issue a while back.

John

 

that would be excellent really.

 

Have you looked into HD's analog oil temperature dipstick? It will replace the OE dipstick minus the pop up feature. To install, press down while turning 1/4 turn clockwise. To remove, pull up while turning 1/4 turn counterclockwise.
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I didn't know this was a thing actually. I figured they were all with the pop up so they st flush with the tank. Thank you.

 

There's also a digital version in either black or chrome that displays both temperature and oil level at the touch of a button. Much like the analog version, it doesn't incorporate the pop up feature.

 

I can vouch for the analog dipstick. I run one on my ‘21 48 and it works great, about as easy to get on and off as it gets. One thing I will say is that it can be difficult to read exactly where the oil level is depending on the light. What I normally do is take a clean piece of white paper towel and lay the dipstick on it flat for a second then pull it off the towel a little and see where the oil stain matches up to on the stick itself. It’s a minor inconvenience but it’s way better than dealing with the stock pop up cap. Also, I think the analog gauge looks cool, kind of steampunk-y but not obnoxiously so.