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Main image of Alpine Type S S-W12D4 12" Sub Box Fits 2014-2018 GMC Sierra Double Cab | Dual 4 ohm Single subwoofer, 1800 watt peak power, vehicle-specific enclosure, deep truck bass, 12 inch

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Alpine Type S S-W12D4 12" Sub Box Fits 2014-2018 GMC Sierra Double Cab | Dual 4 ohm Single subwoofer, 1800 watt peak power, vehicle-specific enclosure, deep truck bass, 12 inch

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2014-2018 GMC Sierra Double Cab Alpine Type S S-W12D4 Single 12 Sub Box New - Final 2 Ohm This custom-fit sub box is designed for the 2014-2018 GMC Sierra Double Cab, accommodating a single Alpine Type S S-W12D4 subwoofer. The enclosure is built to deliver solid bass response while maintaining a neat, space-efficient profile behind the seat. Constructed from durable materials, this box helps enhance the low-end output of your audio system. The final impedance is 2 ohms, ensuring straightforward wiring for your amplifier setup. This is a brand new unit, ready for installation in your compatible truck

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2014-2018 GMC Sierra Double Cab Alpine Type S S-W12D4 Single 12 Sub Box New - Final 2 Ohm This custom-fit sub box is designed for the 2014-2018 GMC Sierra Double Cab, accommodating a single Alpine Type S S-W12D4 subwoofer. The enclosure is built to deliver solid bass response while maintaining a neat, space-efficient profile behind the seat. Constructed from durable materials, this box helps enhance the low-end output of your audio system. The final impedance is 2 ohms, ensuring straightforward wiring for your amplifier setup. This is a brand new unit, ready for installation in your compatible truck

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First Listed on Newegg	August 16, 2026

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Item#: 9SIC8EKM4P5687