I now have several waterproof grommets used when running wires through your firewall or through any other metal where a wire might get scratched.
I have them for 8ga wire, 4ga wire and 1/0ga wire.
Not my pic, but they look just like these... I'll get some pics ASAP.
The black rubber gasket creates a tight seal against the wire when the top nut is screwed down. The grommets are held onto the firewall, etc using the other nut.
They all come in WHITE, but you can easily paint them with Krylon Fusion to match anything you want if white doesn't match.
I'm using a couple of these in 4ga size to run several 18ga wires from various places into the cab. In my case, I cover all the smaller wires with split wire loom and feed the wire loom & wires through the grommet. My application may not be 100% waterproof as is, but I filled the inside area of the grommet with silicone caulk for some extra protection.
Normally 8, 4 or 1/0ga wires will fit snugly in the black gasket & when the top nut is tightened down, it won't go anywhere!
I'm offering these for a $5.00 PayPal Gift, your choice of size, shipped FREE within the USA.
My old grommet similar to this cost me nearly $10.00 and offers the same protection as these do for much less!
These are a MUST when installing car audio, lights or any other electrical device that requires you pass wires through metal.
Grab 'em while I've got 'em :thumbup1: