Skip to content
- Want a sight gauge on your gas or oil tank but don't want bulky lines and fittings hanging off the side? TC Bros. has the solution! Crystal clear glass viewing lens sealed tight into a CNC machined brass housing. Also included is a forged 3/4" NPT mil
- Aluminum filler cap for oil tanks (unvented). Standard 1 5/16"-12 thread fits many chopper oil tanks. CNC Machined From 6061 Billet Aluminum with a leak free O-ring seal. Cap is knurled for extra grip and features a dome top contour for classic looks.