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StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

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• 4 Gauge Firewall Bushing
• Water tight seal when power wires pass through metal
• Locks securely as bushing is tightened

Learn more about the fb4

We apologize

This item has been discontinued

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Description


  • 4 Gauge Firewall Bushing
  • Water tight seal when power wires pass through metal
  • Locks securely as bushing is tightened
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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Specifications & Details


Firewall Bushing Features
Maximum Input Gauge Size
4 AWG
Warranty and Return Policy
Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

FB4

Weight:

0.25lbs

Internal SKU:

fb4

Internal Product ID:

15905

Customer Ratings & Reviews


StreetWires FB4 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
4.9
Features
4.7
Design
5
Usability
4.2

Customer Reviews

Sort by:

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Best grommet out there

This is the best grommet I have ever worked with. Seals up and locks down so the wire can not be pulled either way. Cost reflects the build quailty and performance. I have used this not only in automotive applications but also in marine applications which says alot for the performance.

By Kyle on September 15, 2011

60 found this helpful


Good Product

This is great for going thru the firewall. Keeps the wire safe and secure from grounding out.

By burning_soul07 on October 21, 2011

58 found this helpful


Great Product

This will allow you to go through the firewall without having to worry about grommets or the metal cutting the wire. Great Idea for a product!

By Kevin on September 8, 2009

60 found this helpful


Could be nice to use

I didn't use it. I bought my car used and the guy before me ran a system. I found the hole he used and it already had a rubber gasket type thing.

This could be very nice to have in some installation scenarios, like a complete rebuild.

Just know that you don't want your power wire chaffing on the firewall.

By -Benjamin on July 22, 2012

56 found this helpful


Outstanding Product

This feed through firewall bushing is a great product. I used it when I ran my power amp wiring through the firewall. Great protection, excellent size and very convenient. I definitely feel more comfortable knowing the wires are protected. I definitely recommend this to anyone routing a cable through a metal firewall.

By Dr. B on July 28, 2013

55 found this helpful


GOOD PRODUCT

Worked like a charm could be alittle stronger plastic but still a good product.

By MATT on November 4, 2011

53 found this helpful


StreetWires FB4

Nice design to guide and waterproof the wire through the firewall. Tighten snug, not necessary to over tighten to waterproof. May need a helper.

By 4budz on April 2, 2017 Checkmark Icon Verified purchase

10 found this helpful



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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

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