This part is commonly Used on models:
51977 18in Straight-Shaft Gas Trimmer51957 17in Curved-Shaft Gas Trimmer51987 Powervac Gas-Powered Blower51947 25cc Power Head51948 25cc Power Head51958 17in Curved-Shaft Gas Trimmer51978 18in Straight-Shaft Gas Trimmer51998 18in Straight-Shaft Gas Trimmer51978A 18in Straight-Shaft Gas Trimmer
