Husqvarna 530047721 Lawn & Garden Equipment Engine Carburetor Primer Bulb Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; 358791072,358798940,358791070,358791071,358740160,358341900,358791510,HVA125B-LOWES,HVA125BX,WT3100,358351710,358350981,358350982,358350980,PP036,358791061,358791060,PPB3416 TYPE 1,SM4218AVX,PPB3416 TYPE 2,PRO 033,358351700,SM132LE TYPE 2,358351701,SM132LE TYPE 1,PPB200E,358351820,PP4218AVL TYPE 1,SM132 TYPE 2,PP4218AVL TYPE 2,SM132 TYPE 1,358360680,PPB300E,358362181,358798960,358360681,PP446E,131,P3416 TYPE 1,PPB150E,P3416 TYPE 3,SM4218AV TYPE 2 This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 530-047721,5300477-21 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Poulan,Craftsman,Husqvarna,Weed Eater,Mcculloch This carburetor primer bulb (part number 530047721) is for lawn and garden equipment engines Work in a well-ventilated area when installing this part