Stihl primer bulb adapter

You should probably use a brim and support for the over overhangs PETG or ABS something that can handle heat, and it would be a press fit on my saw (stihl ms 251 c) 

I'm not sure if it would be compatible with any other stihl saw

I didn't use OEM bulbs. I got a cheap pack on Amazon (LINK⬇⬇⬇)

Podoy Primer Bulb for Compatible with Husqvarna 345 346 350 353 850 Stihl Craftsman Poulan Chainsaw 455 Rancher 460 445 450 435 Replace 503936601(Pack of 10) https://a.co/d/1BuIPPR