The SM 4430A is an upgraded Self Starter Rocker Assembly (Carbon Holder Kit) designed specifically for Denso-style (DEN.TYPE) starter motors found in the Honda Accord. Unlike the standard rocker assembly, the "A" suffix denotes a comprehensive Holder Kit, which often includes reinforced mounting components or an updated brush-guide system to ensure long-term stability in high-performance Honda engines (K-Series 2.4L and J-Series V6).