Our take on the StreetWires FB4

by Ken Nail

Keep water out when you run power cable through your car's firewall. The StreetWires FB4 firewall bushing protects your 4-gauge power cable from wear and chafing, and provides a watertight seal when it's tightened down. Lifetime warranty.

See more info on this item

Hands-on research from the Crutchfield Labs (what are the Labs?)

What’s in the box? | In-depth notes

Product Research

What's in the box?

Threaded bushing shaft
Cap
Nut

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

General Description: The StreetWires firewall bushing is a three piece design; the threaded shaft loads through the firewall, a rounded cap screws on from one side and a nut from the other. A watertight seal is created as the ends are tightened. Your wire will be protected from metal jagged edges and moisture.

Available Sizes and Dimensions: The StreetWires firewall bushings are available in three sizes.

8-Gauge Firewall Bushing:

Cut-Out Diameter: 0.58"
Shaft Length: 1.159"
Inner Hole Diameter For Wire: 0.25"

4-Gauge Firewall Bushing:

Cut-Out Diameter: 0.88"
Shaft Length: 1.275"
Inner Hole Diameter For Wire: 0.5"

1/0 Gauge Firewall Bushing:

Cut Out Diameter: 1.105"
Shaft Length: 1.588"
Inner Hole Diameter for Wire: 0.75"

Review this product

Submit a review and you will be entered to win a $150 gift card

Crutchfield Great Gear Giveaway Official Sweepstakes Rules

Reviews for the StreetWires FB4

Average Customer Review:

12 people say:

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Review title

* Email

Your email won't be visible. Please use the email address that is associated with your order.

Display name

(e.g., JohnD) Your review will be signed using the display name and location

* Your location

(e.g., Charlottesville, VA)

* Your rating

Click on a star to rate the overall product on a scale of 1-5

1500 characters left * Your review

Attach a YouTube Review

Crutchfield Video Review Guidelines

Only submit videos that you made or are authorized to use.
Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
Please see our Review Guidelines for more information.

Submit the URL of your YouTube™ video review or product demonstration. e.g., "http://www.youtube.com/v/o79TWHh598U"

500 characters left Pros

500 characters left Cons

* Agree to Terms By checking this box you agree your review becomes the property of Crutchfield, that you are over 18 years of age, that you own or have owned this product, and that you are located within the United States or its territories. Please see our Review Guidelines for more information. We reserve the right (but are not obligated to) review all submissions and edit or remove any review in any manner which we deem necessary. Your review should be posted within seven days.

Filter by rating:

5 Star: (5)

4 Star: (4)

3 Star: (0)

2 Star: (3)

1 Star: (0)

Sort by:

Showing: 11-12 of 12

View page: « 1 2

Items per page:

2 out of 5

A good idea...

Written By newfrontier45, Orlando, FL on Monday, October 30, 2006

...but very poorly executed. The threads are just way too short to use on anything but a single layer of thin sheetmetal. I don't know if many firewalls are that thin but the floor of my Chevy 2500HD was way too thick to use this product properly. I was able to utilize it but not in the manner in which it was intended.

1 out of 2 people found this helpful

Was this review helpful? Yes | No

4 out of 5

A Must-Have Accessory for Amplifier Wiring Install

Written By Dan, Sioux Falls, SD on Wednesday, August 30, 2006

Crutchfield Customer Review (What's this?)

I installed this product in a 2002 Honda Accord, which has a knockout block in the firewall a little ways above the gas pedal. Upon removing the plastic knockout block I discovered a hole in the neighborhood of 3/4" diameter. I ordered the Streetwires FB4 firewall bushing and was delighted to find it fit.

The firewall bushing serves a few functions:
1) It looks great! It gives the install a professional look.
2) When the nut is tightened it cinches on the power cord, keeping the cord from sliding in and out and creating a waterproof seal.
3) The bushing, of course, keeps the sharp edge of the hole in the firewall from wearing through the power cord installation and causing a short.

My only complaints are that it is impossible to find any information regarding the dimensions of this product online. The product arrived with absolutely no instructions. And, my firewall was a bit too thick for the FB4 and I had to remove the rubber o-ring gasket in order to have sufficient thread space to secure the FB4.

The FB4, although a bit more spendy than a hardware store grommet, is money well spent. It ensures a sharp-looking, worry-free install.

3 out of 3 people found this helpful

Was this review helpful? Yes | No

11-12 of 12 <<

Free Shipping on Everything

StreetWires FB4

4-gauge firewall bushing

Item# 211FB4 offer details

Review Summary

By buying this product you'll earn up to 10 Rewards points.