<b>Primer Bulb Fuel Line for MTD 791-683974B Ryobi 683974B Echo STHIL Homeliter Mcculloch Poulan Weed Eater Parts Kit Engine String Trimmer</b><br><br><b>Fitment models:</b><br>Fit sears echo troy bilt weedeater ryobi STHIL ryan mcculloch craftsman husqvarna trimmer blower chainsaw and other mashine<br>Replace mtd 791-683974B ryobi 683974B<br><br><b>Package included:</b><br>1x 2-feet fuel line<br>4x primer bulbs