There have been model number changes made for quite a few replacement McIntosh accessories including remotes.
I'm not surprised that an original MX130 remote made between 1993 & 1998 would not have the HR034 part number. However, if you need to order a replacement that is exactly what you'd search for.
You can also use the original part number that 70sMac posted. I believe, however, you'd have more luck looking for it under the new part number.
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Michael 4K QLED|Aerial Acoustics|McIntosh D100 - MC501 - MX151|Bluesound|Schiit|Wyrd4Sound
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