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Install Bay Firewall Grommet (IBFG4)

4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

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• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

Learn more about the ibfg4
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List price $3.99
Thanks , You Pay:
-25%

$2.99

 with warranty
4 payments of $1

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We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one ibfg4.

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Description


Install Bay brand icon

Authorized dealer

General Features:

  • 4 AWG Firewall Grommet
  • Water-tight seal and protects cables as they pass through metal firewall
  • Locks tightly in place
  • IP68 Waterproof rating
  • Sold Individually
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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• Protects Cables When Installing Through a FIrewall
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Specifications & Details


Firewall Bushing Features
Maximum Input Gauge Size
4 AWG
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

IBFG4

Weight:

1.00lb

Internal SKU:

ibfg4

Internal Product ID:

135483

Customer Ratings & Reviews


Install Bay Firewall Grommet (IBFG4) thumbnail image

5 star
90%
4 star
10%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Install Bay Firewall Grommet (IBFG4)

This is a professional quality grommet. Worked perfectly. I used a small drill bit for a pilot hole and then used a uni-bit to get the large diameter for this to fit through. I have peace of mind knowing the my power wire won’t get cut and short out on the sheet metal vs using a cheap rubber grommet. Just buy one!

By Robb on January 6, 2020 Checkmark Icon Verified purchase

39 found this helpful


Good design

I ended up not needing it, but the grommet is pretty cheap and well designed so that it clamps over the wire and creates a nice seal.

By Curtis on July 9, 2020 Checkmark Icon Verified purchase

37 found this helpful


Simple to use

Grommets work great. Drill hole, paint/rustproof hole, mount grommet, run wires/cables as required

By Anonymous on September 2, 2018 Checkmark Icon Verified purchase

38 found this helpful


good value/ high quality

good quality for your specialty wiring job. Recommended for the price!

By Chase on November 12, 2022 Checkmark Icon Verified purchase

35 found this helpful


Perfect

Perfect design. As you tighten the cap it creates a water tight seal around the cable. Great design.

By Anonymous on October 11, 2019

35 found this helpful


Decent grommet

Considering what i paid for it, this is a pretty good well built grommet

By Brian on December 28, 2019 Checkmark Icon Verified purchase

34 found this helpful


Nice piece of hardware

Worked well to seal the penetration point of my amps power wire.

By Anonymous on May 12, 2019 Checkmark Icon Verified purchase

34 found this helpful


By Jesse on April 16, 2024 Checkmark Icon Verified purchase

8 found this helpful


By Jaime on October 7, 2025 Checkmark Icon Verified purchase
2010 Lexus RX450h


Perfect for plugging up a hold

Perfect size and did its job

By I AM JOB on September 26, 2025 Checkmark Icon Verified purchase


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.