It replaces the now discontinued Holley Kit #37-1445 and services the following Holley List numbers:
Restore factory performance and fuel consistency with this reliable rebuild solution for your Holley 4010 vacuum secondary carburettor.
$139.95 RRP
Part Number: KR23M
Rebuild Kit for Mercruiser Marine Carburettors Mercarb 2BL 2GC [RT623M]
$249.95 RRP
Part Number: KH12
Genuine Rebuild Kit Holley 4150 4500 Dominator Large Flange 4575, 6464, 7320
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