MPN 4851 710 6053, 48517106053, 4851-710-6053. Model HSA66, HSA 66, HSA-66, HSA86. Electric Motor fits Stihl HSA66, HSA86 Hedgetrimmers 4851 600 0206. For more info just give me ring on 07851909216. Black & Decker GTC1843L20 Cordless Long Reach Articulating Hedge Trimmer.