Arnold's Primer Bulb Variety Pack is for use with 2-cycle and 4-cycle hand held equipment including Shihl, Husqvarna, Troy-Bilt, Craftsman, Homelite, John Deere, Ryobi, Bolens, Yard-Man, Ryan, Yard Machines models. These primer bulbs will also fit many Stihl, Zama, Walbro, Shindaiwa, and Homelite carburetors. | Arnold Primer Bulbs Variety Pack