I personally would just verify it's sealed thoroughly with silcone and route wires another way.. As a pile of water will run through that area when it rains
May be able to change the grommet I never looked into that option from PO poking holes into them.
I agree with others that a junk yard grommet would be your parts source if going that route.
Sent from my SM-A505U using Tapatalk
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7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread:
https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer:
https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information:
https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html