Firewall wire harness grommet, what are you using on your 24v swap?

[dunebuggyjay]

Hi Guys, what are you using for a grommet on the firewall where the wiring harness goes threw? Did you re-use the e30 one? Any tips on removal an installation? Im not sure it will fit over the ecu connector to come off, and back on. Has anyone waffleswaffleswaffles this? I suppose I could cut a slit in the stock grommet so its bigger. But worried about water getting in.


Any suggestions?

Thanks,

Jay

[jt223539]

I have never had any water get in through that hole. I just cut some rubber tubing in half, and covered the edge of the firewall hole.

[mpowerful]

I cut an e30 one down the center and put it around the e36 harness. Works perfect. No water.

[efficient]

I don't run the grommet and no water

[mpowerful]

Its rains 4 inches an hour in new orleans on a refular basis this time a year.

[GDA]

New grommets are supple, keep the dust and bugs out and add just a touch of noise suppression.

If you are working on the harness just install new ones. I did it on my swap and installed a new elephant trunk as well.

[M3PO]

I used the squarish one that came on the E36 harness. I squared up the hole in the firewall to make it fit and painted the cut edges.

[328ijunkie]

E30 one works perfect if you can chop it off your original harness.

[dunebuggyjay]

E30 one works perfect if you can chop it off your original harness.

Yup that what i plan on doing.

Thanks guys!

Jay

[Northern]

+1 to E30 one cut off an old harness.

[sweet3]

+1 to E30 grommet. I also have the plastic firewall harness covers and that adds some extra coverage