HIPA Snap in Primer Bulb Pump 188-512 for Poulan PPB100E PPB150E PPB200 PPB200E PPB250E PPB300 PPB300E PPB32SST PPB350 SM132 SM132LE String Trimmer Replace manufacturer part number: 188-512, 188-512-1 CRAFTSMAN RYOBI UP04033 300780004 300780001 Fits Poulan 35879158 35879558 35879898 3587952 35879556 35879516 3587958 35879518 HOMELITE HLT28 ST145 ST155 CS50 CS4018 CS5020 D4150B D450B D4550BC CS40 Please compare the sizes with your old bulb carefully, make sure it fit