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Quality vacuum caps needed!

mrk5

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Seems like every time I put a vacuum cap on I find it totally roached a year later like this one:

20211013_103509.jpg

What can I get that's a better option?
 

JoshHefnerX

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Was gonna make a joke about arp vs hardware store bolts in the hoses,

But.. I've used those vinyl colored caps before and I dont know if it was the heat or what but they got really loose over time.
 

Fastereddie

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Was gonna make a joke about arp vs hardware store bolts in the hoses,

But.. I've used those vinyl colored caps before and I dont know if it was the heat or what but they got really loose over time.
Hmm, that’s never happened in my experience. If anything they might shrink up tighter. I wonder if it depends on the type of plastic. I think the ones I get are from dorman ?
 

HankScorpio

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Had the same cracking with rubber caps. Been using the colored vinyl ones for a while too, much better.
 

mrk5

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Hmm, that’s never happened in my experience. If anything they might shrink up tighter. I wonder if it depends on the type of plastic. I think the ones I get are from dorman ?
There don't seem to be many sources for them. Dorman, Summit, Pico, and Moroso are the only vinyl ones I've found. Moroso has them in black only.
 
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