StreetWires Firewall Bushing

Protect your 1/0-gauge cable against firewall damage (1/0-gauge)

  • StreetWires Firewall Bushing


  • StreetWires Firewall Bushing

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Item #: 211FB0

Review Summary

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Our take on the StreetWires Firewall Bushing

by Tim Sprinkle

This StreetWires firewall bushing seal installs in the cut-out drilled through your vehicle's firewall for your 1/0-gauge power cable. The bushing provides a watertight seal, guards against corrosion, and protects your wiring from chafing against the cut-out. The bushing locks securely as it is tightened. Warranty: lifetime.

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

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.


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"
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StreetWires Firewall Bushing Reviews

Average Customer Review:

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5 out of 5

Works well, worth the money

Written By MAY03LT, Kent, DE on Sunday, March 25, 2007
This item does exactly what it says.

I used a 1 3/8" holesaw to drill through my firewall and the bushing fit perfectly. I had to drill from the inside out, there were too many components in the way from the engine side. I would recommend making sure that you can fit a drill in the spot that you want to drill through first before purchasing, without a drill it may be tough to install.
56 out of 70 people found this helpful
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For a more in-depth review and enhanced detailed information on the StreetWires Firewall Bushing, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_211FB0/StreetWires-Firewall-Bushing-1-0-gauge.html ).