Currently offering M18x1.5 plugs. More sizes available soon. Patent Pending.
Robertson Plug
The Robertson Plug replaces your transmission or differential
drain plug with a sealable, one-way valve. This allow you to easily fill your transmission
or differential from the drain. This is useful in cases where the fill port is hard to reach
or nonexistent.
How it works.
Currently offering M18x1.5 plugs. More sizes available soon. Patent Pending.
Contact us.