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Ground Shaker  GS-OGM18B New

8" Black Single Sealed Sub Box for 1988-1998 GMC Sierra Ext-Cab

Item #98995

Condition:   Brand New

Product Highlights

  • GMC Sierra
  • Extended Cab
  • Single 8"
  • Sealed Subwoofer
  • Truck Enclosure

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

$240.00

Reg. Price $340.00  Save $100.00
  Free 2-Years Warranty Included!

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Ground Shaker GS-OGM18B 8" Black Single Sealed Sub Box for 1988-1998 GMC Sierra Ext-Cab

We are an Ground Shaker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 8" Black Single Sealed Sub Box
  • • Owner's Manual
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Compact Bass Performance

Designed for a perfect subwoofer fit, this enclosure features a precise 7 1/8" cutout diameter and a 0.88 ft³ air volume for clean, punchy bass. Its 6" mounting depth (with a 5 1/2" magnet diameter) allows compatibility with a wide range of subwoofers while keeping installation simple. Weighing just 24 lbs, it offers a strong yet lightweight build ideal for powerful sound without added bulk.

Perfect Fit, Powerful Build

Designed with a balanced shape for a clean and secure installation, this enclosure measures 10 1/4" in height and 28 1/4" in length, giving your setup a solid, professional look. The smart depth design—11" at the top and 16 1/2" at the bottom—maximizes internal space for better performance and deeper bass response. Built to fit smoothly while enhancing sound output, it’s a reliable upgrade for anyone serious about their audio system.

 

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Built Strong for Better Bass

Crafted from durable 5/8" high-quality MDF wood, this enclosure is designed for strength, stability, and long-lasting performance. It features a rugged trunk-liner carpet finish and is carefully sealed with premium Titebond silicone and wood glue to ensure an airtight build that enhances sound quality. Finished with a reliable binding post terminal for secure connections, it’s made to deliver clean, powerful bass every time.


SPECIFICATIONS


  • Speaker Size : 8 Inches
  • Number Of Subwoofers : 1
  • Construction : 5/8 MDF
  • Volume : 0.88 Cu. Ft.
  • Enclosure Type : Sealed
  • Vehicle Make : GMC Sierra

FEATURES


Specifications:

  • Cutout Diameter: 7 1/8"
  • Total Air Volume: 0.88 ft³
  • Weight: 24 lbs
  • Mounting Depth: 6" (with a 5 1/2" magnet diameter)

 

Dimensions:

  • Height: 10 1/4"
  • Length: 28 1/4"
  • Top Depth: 11"
  • Bottom Depth: 16 1/2"

 

Construction:

  • 5/8" High-Quality MDF Wood
  • Carpeted with Durable Trunk Liner Finish
  • Sealed with High-Quality Titebond Silicone
  • Glued with High-Quality Titebond Wood Glue
  • 1 Binding Post Terminal

 

Installation:

  • Fits Under Rear Seat
  • Forward Firing
  • Requires Removal of Jack-Kit
  • UPC:
  • Weight: 24
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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