This Haltech firewall rubber grommet measures 63.5mm (2.5 in.) outer diameter with a 44.45mm (1.75 in.) inner diameter. It’s intended to protect larger wiring bundles or conduit passing through a firewall or bulkhead, offering a sealed, abrasion‑resistant interface for neat, serviceable harness routing.
Haltech Firewall Rubber Wiring Grommet