STAR Machine

Why would you need an Oil Fill Cap?...Now that you have tightly sealed the engine to achieve vacuum in most cases there is no (sealed) provision to add engine oil.
This Oil fill cap is O-Ring sealed and is installed with out welding.

Designed to fit into a 1.25" diameter hole. The bung portion seals to the valve cover with an o-ring and requires (only) 0.25" clearance below the bottom surface of the valve cover. Apply silicone or removable thread locker to nut threads at assembly.

The knurled cap seals to the bung with an o-ring. All parts are manufactured from 6061-T6 aluminum and color anodized: body in black only and the top in red or black. (Red top supplies are limited)

Mass: 97gm./0.21lbs.