Because running our of gas sucks… Everything you need to mount to your tank or oil bag! Brass Sight Glass - 3/4" male NPT (dry-seal) 1-1/8" Hex. Glass - Shatter resistant and Temperature resistant from -40 deg to 180 def F. Bung - 3/4" female NPT, 1.365" OD Flange with a .25" Step (Bungs are stepped to make welding a breeze). Compatible with gas, gasohol and oil. We also offer an External Hose Kit. Accommodates: Any Steel tank that will support a 1.365” diameter bung. **We also offer pre-installed fuel kits and fuel sights** Need custom work done? Look no further. Our machine shop can add any of our gas tank/oil bag accessories to your tank for an additional cost. If you have an OEM tank or a custom tank that you would like us to modify, we can do that as well. Just contact us for a quote.