Memorial Day Sale - Up to 50% Off! Shop Now >

Find Audio & Electronics for your Sierra 1500

Single 12-Inch Down Fire Ported Subwoofer Box; Poly Coated (14-18 Sierra 1500 Crew Cab)Find parts that fit my vehicle

Item S584947
Limited Time
Our Price

$239.99 each

Coupon
Apply 10% Discount
One coupon per order | Details
Military, Medical & First Responders $12.75 Available in AT Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Shop Owners Save More! Sign up for our dealer program

      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Single 12-Inch Down Fire Ported Subwoofer Box
      • Accommodates (1) 12-Inch Speaker
      • Armor Coated With High-Pressure Polyurethane Bed Liner Material
      • Included Coating Increases the Base and Stiffens the Wood
      • Engineered to Have No Air Leaks
      • Manufactured from 5/8-Inch MDF Material
      • Air Volume: 0.83 Cubic Feet
      • Port Volume: 0.07 Cubic Feet
      • Port Dimensions: 2 x 5.50 x 11 Inches
      • Mounting Depth: 5.50 Inches
      • Dimensions: 39 x 10 x 16 Inches
      • Sold Individually
      • Easy Installation
      • Fits 2014-2018 GMC Sierra 1500 Crew Cab Models

      Description

      Powerful Bass Performance. The Single 12-Inch Down Fire Ported Subwoofer Box is designed to maximize your vehicle’s audio output with precision and style. Built to accommodate a single 12-inch speaker, this enclosure enhances low-frequency sound while maintaining clarity and depth. Its down-firing design ensures optimal sound dispersion and consistent bass performance inside your cabin.

      Construction and Appearance. Crafted from durable 5/8-inch MDF material, this subwoofer box ensures rigidity and acoustic accuracy. The high-pressure polyurethane bed liner armor coating adds a rugged, textured finish while also reinforcing the enclosure’s structural integrity. This specialized coating not only boosts durability but also helps to stiffen the wood, preventing unwanted vibrations and enhancing sound quality.

      Installation. Installation of the Single 12-Inch Down Fire Ported Subwoofer Box is straightforward and convenient. It’s designed for a seamless placement beneath the rear seat, allowing you to retain valuable cabin space. The process requires no drilling or complex modifications, making it accessible even for first-time installers.

      Application. This Single 12-Inch Down Fire Ported Subwoofer Box fits 2014-2018 GMC Sierra 1500 Crew Cab models.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 1 Hour

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Subwoofer Box
      4.6

      Reviews of similar Interior Products (34)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 1500

      • 4.3L V6 - 14, 15, 16, 17, 18
      • 5.3L V8 - 14, 15, 16, 17, 18
      • 6.2L V8 - 14, 15, 16, 17, 18