Podoy Primer Bulb for Husqvarna Stihl Craftsman Poulan Chainsaw 455 Rancher 460 445 450 435 Replace 503936601(Pack of 10) Fits for HUSQVARNA 345 346 350 353 850 Chainsaw Height:34mm / 1.34inch. Wide:21.4mm / 0.842inch Refer to part numbers 01183, UP04033, 300780001, 300780002 & 300780004 Replace Mtd 791-683974B Ryobi 683974B Oregon 49-088-0,Bin number 188-512 Package inculdes 10 X primer bulbs, NON original aftermarket parts