This part is commonly Used on models:
51954 17in Curved-Shaft Gas Trimmer51974 18in Straight-Shaft Gas Trimmer51944 25cc Power Head51945 25cc Power Head51955 17in Curved-Shaft Gas Trimmer51975 18in Straight-Shaft Gas Trimmer51946 25cc Power Head51956 17in Curved-Shaft Gas Trimmer51976 18in Straight-Shaft Gas Trimmer51977 18in Straight-Shaft Gas Trimmer51957 17in Curved-Shaft Gas Trimmer51947 25cc Power Head
