Savior 20 Pack of Snap in Primer Bulb Bulbs Pump 188-512 for Homelite Stihl Ryobi Toro Blower Weed Whackers Trimmer Replace Craftman Husqvarna 503936601 530047721 Dolmar 010 155 101 high quality aftermaket replacement primer bulb Fit Pouland Homelite Sears Craftsman Echo Ryobi Stihl Husqvarna chainsaws blowers Replace 188-512 188-512-1 Refer to Part No.: 01183, UP04033, 300780001, 300780002, 300780004, 530047721 Height x Wide:1.236"(31.4mm) x 0.842"(21.4mm)