The replacement part number for the fuel tank vent pipe is 1117 350 5800, which is compatible with STIHL 025, 029, 039, MS290, MS310, MS390, 028WB, 028 WOO models. The fuel tank vent pipe is suitable for engraving chainsaws, chain saws, concrete chainsaws, hot saws, mini chainsaws, rescue chainsaws, etc. The fuel tank vent pipe is made of metal and silicone materials, which is oil-resistant and corrosion-resistant, and can maintain long-term durability under harsh working conditions. The fuel tank vent pipe can optimize ventilation performance, prevent fuel spills and excessive pressure, and ensure stable and safe operation of the equipment. Package contains: 2pcs fuel tank vent pipes, size 56*7mm, inner diameter about 3.5mm., Manufacturer: Briny River