Wiper Motor Wiring Firewall Rubber Grommet 240Z 280Z

New OEM Nissan rubber plug that can be modified for use as a grommet for the wiper motor wiring through the firewall. This plug fits the hole diameter and will need to have a hole placed in the center for the wiring to pass through. The original grommet is not available from Nissan. Will fit Datsun 240Z, 260Z and 280Z, 1970-78.  Fits a hole diameter of approx 36mm, outside diameter of this plug is 46mm.