This part is commonly Used on models:
51954 17in Curved-Shaft Gas Trimmer
51974 18in Straight-Shaft Gas Trimmer
51944 25.4CC 2CY GAS POWER HEAD
51945 *OBS* TORO 2 CYCLE GAS POWER HEAD
51955 *OBS* 17"" CURVED SHAFT GAS STRING TRIMME
51975 *OBS* 18"" STRAIGHT SHAFT GAS STRING TRIM
51946 25cc Power Head
51948 GAS POWERHEAD
51958 GAS TRIMMER - CURVED SHAFT
51998 18-IN GAS TRIMMER STRAIGHT SHAFT (1-PC)
51978A GAS TRIMMER - STRAIGHT SHAFT - CANADA
