Fits
for the carburetors of chainsaws, blowers, trimmers, that have the snap
in primer assemblies, such as McCulloch, Craftsman, Husqvarna, Poulan.
Sears, Echo, Troy Bilt, Weed Eater, Ryobi, Stihl, Ryan and many more.
Note:
1. your primer bulb must look like the one shown and be made onto
the black plastic unit.
2. If yours is held on with a metal plate with 2 screws, this is
not the bulb for you.
3. But if it's on a black plastic unit, clips into place with the 2
little 'ears' on the side and has two fuel line fittings on the under
side, this will work for your application.