Primer Bulbs, Fits 2-cycle / 4-cycle handheld equipment, OE Replacement Part No Walbro 188-14, Echo 12318140630, Housewareslite UP-04802, UP04802, 01201, McCulloch 225834-00, Shindaiwa 20036-81670 and Stihl 4133 121 2700.Also replaces Green Machine 4467213, Housewareslite 01201, UP04802 and Red Max 1491-61510, For Troy-Bilt, Craftsman, Housewareslite, John Deere, Ryobi, Bolens, Yard-Man, Ryan, Yard Machines, Husqvarna and Stihl models, Fits many Zama, Walbro, Shindaiwa, Stihl and Housewareslite carburetors, Contains quantity of three - one of each three different sizes *****