530035497 Primer Bulb 22MM Fits Walbro Fits Poulan Fits Sears Fits Weed EaterOne (1) New Aftermarket Replacement Primer Bulb Fits all kinds of several makes and models including Fits Zama C1U and C1Q M Carburetors. Fits Poulan: WA 224 1, WA 226 1, WA 228 1, WA 229 1, WA 230 1, WA 232 1,WA 323 1, WT 501 1, WT 519 1, WT 557 1, WT 558 1, WT 586 1, WT 587 1, WT 592 1, WT 606 1, WT 626 1, WT 630 1, WT 631 1, WT 632 1 & WT 638 1 May also fit several models Fits Echo, Fits Stihl, Fits Ryobi, Fits Homelite, Fits Oregon, Fits Rotary