Need a new harmonic ballancer

[egsohc]

Hi all. The harmonic ballancer on my b18c2 is starting to crack. So need a new one.
Are they available aftermarket? I have seen a few lightened ones on eBay, are there any reliable brands?
Cheers, Dan

[mocchi]

ATI or fluidampr

[egsohc]

ATI or fluidampr

Thanks, these aren't a bit over the top for a standard motor?