Arnold, Gas-Engine Primer Bulb, 3 pk

3PK Gas-Engine Primer Bulb. Designed for 2 & 4 cycle gas engines and hand held power equipment. This pack includes 3 different sizes to ensure a perfect fit for most applications. It is compatible with Troy-Bilt, Craftsman, Homelite, John Deere, Ryobi, Bolens, Yard-Man, Ryan, Yard Machines, Husqvarna, and STIHL models. It also fits many Zama, Walbro, Shindaiwa, STIHL, and Homelite carburetors. For Walbro models WA, WT, WY, WYJ, WYK, WYL, WYP, and WZ carburetors, it requires a 0.755 inch outer diameter x 0.560 inch HT primer bulb. For HDA models and WYK carburetors, it requires a 0.680 inch inner diameter x 0.912 inch outer diameter. This primer bulb replaces Walbro No 188-14, Echo 12318140630, Homelite UP-04802, 01201, McCulloch 225834-00, Shindaiwa 20036-81670, and STIHL 4133 121 2700. It also replaces Green Machine 4467213, Homelite 01201, UP04802, and Red Max 1491-61510.