No. You need to get a primer bulb made for your chainsaw.
Yes it will as long as one of the bulbs is the same size as the one you need to replace.
Sorry not sure what a C430 is. I have a Ryobi S430 string trimmer and one of the bulbs fit mine fine. HTH.
Wayne, If you go to Product Overview -> Info and Guides -> Click on Replacement Parts List.... On Page 1 lower left hand column under "Packing List" you will see what products these Universal Primer Bulbs can be used.
Yes that’s why there are 3 different cups
You guys send me this question a lot. Why can't you get the manufacturer to give you a listing of chainsaws these parts will work in. I'm sure they know what models and manufacturers they work in so ask them for a listing or better yet make them put it on the package to help ALL your customers.