MB Quart - MBQJL-302 Jeep® Wrangler (JL) / Wrangler (JK) Tuned 400 Watt Tailgate Subwoofer System

MB Quart MBQJL-302 12" Subwoofer System with 400W Class-D Amplifier for Jeep® Wrangler JL & JK

Add deep, powerful bass to your Jeep® with the MB Quart MBQJL-302 Subwoofer System. This complete 12-inch subwoofer package is powered by a high-efficiency 400-watt Class-D amplifier and is engineered to mount cleanly using the interior tailgate panel for a factory-style appearance.

MOPAR Part #: 68727431AA

System Overview

• Type: Vehicle Kit
• Brand: MB Quart
• Series: Jeep Wrangler Tuned / Jeep Wrangler JK Tuned
• Category: Mobile
• Condition: New
• Color: Black
• Warranty: 1 Year
• Total System Power: 400 Watts
• Compatible Vehicles: Jeep® Wrangler (JL) 2018–Current, Jeep® Wrangler (JK) 2007–2018

What’s Included

12-Inch High-Output Subwoofer

• Application-specific high-output 12" design
• Frequency Response: 24Hz – 500Hz
• Sensitivity: 86.6dB (1W/1M)
• Impedance: 2 Ohm

400-Watt Class-D Amplifier

• High-efficiency NA2 compact amplifier
• 400 watts of clean, controlled power
• Low current draw with big output
• On-board equalization for optimized performance

Mounting & Harnessing

• Tailgate-mounted enclosure design for OEM-style integration
• Includes all necessary mounting hardware
• Subwoofer-to-amplifier harness included
• Amplifier mounts to amp plate included with:
  • MBQJ-STG4A-1
  • MBQJ-STG4AH-1
  • MBQJK-STG2AH-1

Designed for Seamless Integration

The MBQJL-302 is engineered for simple, plug-and-play compatibility with:

• MB Quart Wrangler (JL) STAGE 4 Audio Systems
• MB Quart Wrangler (JK) STAGE 2 Audio System

When paired with these systems, installation is a straightforward “no mistakes” OEM-style process using factory mounting locations.

Performance You Can Feel

The application-specific 12-inch subwoofer delivers tight, responsive low-frequency output designed to cut through road noise and open-air driving conditions. Combined with the efficient 400-watt Class-D amplifier, this system provides powerful bass impact without sacrificing electrical efficiency.

Installation

The enclosure mounts securely to the interior tailgate panel using included hardware. Basic hand tools are required for installation.

Additional Information

Proposition 65 Notice: WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

The MB Quart MBQJL-302 12" Subwoofer System delivers powerful, controlled bass with factory-fit integration — the perfect low-frequency upgrade for your Jeep® Wrangler JL or JK.