Marine boat vent — stainless steel replacement vent for fuel and oil tanks Key benefits Restores proper tank ventilation: replace a defective or lost gas tank vent to prevent pressure build-up and allow smooth filling and draining. Simple to install and use: designed for straightforward replacement so you can return your boat to service quickly during maintenance or repairs. Durable construction: stainless steel material for long-lasting use in marine environments. Features and specifications Function: marine boat vent for fuel/gas and oil tank ventilation; enables controlled airflow during filling and normal operation. Compatibility: fits oil filler necks with a 38 mm or 50 mm diameter. Material: stainless steel, selected for durability and resistance to wear under typical boating conditions. How it solves common problems Replace lost or damaged vents quickly to stop leakage, spills, and venting failures that can affect engine performance or fuel system operation. Ensures tanks can be filled easily and safely by providing a dedicated vent path. Durable stainless steel construction reduces the need for frequent replacements. Practical use scenarios Onboard repair: remove a corroded or cracked vent on a small powerboat’s gas tank and install this stainless steel vent to restore proper venting before your next outing. Routine maintenance: swap out an aging oil filler neck vent (38 mm or 50 mm) during scheduled engine servicing to maintain reliable fuel and oil handling. Fleet or dockside inventory: keep one or more vents in your maintenance kit to address lost or damaged vents quickly on rental boats, workboats, or personal watercraft. What to check before ordering Measure the filler/vent neck diameter to confirm a 38 mm or 50 mm fit. Confirm the vent is suitable for your tank type (gas/fuel or oil) and intended marine use. Durable, straightforward, and compatible with common filler neck sizes, this stainless steel marine boat vent is a practical replacement part for keeping fuel and oil tanks properly ventilated.