[Harloo]

Here is a link to what you probably have:

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I found this guy in South Carolina still selling them, but they are pricey.

I replaced my 30 amp fuse holder on my 97 Tiara 4000 Express with the following:

Hubbell HBLCISS Circuit breaker inlet cover, and

Blue Sea 30 amp breaker 7365

There was a bit of cutting to enlarge the hole but not much. It fit easily in the original spot.

Some day I'll have to replace the 50 amp side.

Best of luck to you.