
Radium Engineering Universal 10AN Orb Plug
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The Radium Engineering 10AN ORB Plug is a billet aluminum plug that seals any 7/16"-20 O-ring boss port, the same thread used on -4AN ORB fittings. It uses an FKM (Viton) O-ring, so it holds up to oil, fuel and most automotive fluids. It is a small, single-purpose part for capping unused ports on fuel systems, oil systems and catch cans. Compared with generic hardware-store plugs, it is machined for a precise fit and comes with the correct O-ring already installed.
In stockShips from the UK · duties may applyReturn policy
This is an ORB plug from Radium Engineering, made from anodized billet aluminum. It fits any application that uses a 7/16"-20 O-ring port. That is the same thread pitch used in -4AN, and ORB stands for O-Ring Boss.
The plug has an FKM (Viton) O-ring, which suits all oil and fuel types.
It is not application specific. Check compatibility before buying, as some modification may be needed for proper installation.







