Poweka Primer Bulb Compatiabel with Walbro 188-13 188-13-1 HDA and WYK Carburetor Engine - Exact Fit for Homelite Echo Stihl Robi Zama Primer Pouland Bulb 0057003 0057004 0058001 New aftermarket high quality primer bulbs Fits WALBRO HDA and WYK carburetors Fits: Stihl FS 36, 40, 44 Stihl Weedeater Brushcutters equipped with the Walbro carburetor Package includes 20pcs primer bulbs You will receive exactly what you see on the picture