DEI Sound Deadening Rear Side Window Trim Kit

Jeep Wrangler 11-18 3.8L/3.6L/2.0L

Part #: 50149

Overview

The DEI Sound Deadening Rear Side Window Trim Kit is a precision-engineered accessory designed specifically for Jeep Wrangler models from 2007 to 2018. This 2-piece trim kit completes your headliner installation by providing an additional layer of sound deadening and thermal insulation. It significantly enhances cabin comfort by reducing intrusive road noise and minimizing temperature fluctuations, creating a quieter and more enjoyable driving experience.

Ideal for Jeep enthusiasts who demand a refined interior environment without compromising the rugged character of their vehicle, this trim kit seamlessly integrates with your existing headliner. Its sleek black finish complements the Jeep’s interior aesthetics, delivering a clean, factory-quality appearance.

Key Features

Designed with both performance and style in mind, the DEI Rear Side Window Trim Kit offers the following benefits:

• Custom fit for 2007–2018 Jeep Wrangler models ensuring perfect alignment and coverage
• Constructed from open cell polyurethane foam for superior sound absorption
• Polymer surface treatment enhances durability and resists wear
• Reduces road noise and vibrations for a quieter cabin environment
• Improves thermal insulation to help maintain interior temperature stability
• Black finish matches Jeep interior trim for a cohesive look
• Easy to install with no modifications required
• Lightweight design that does not add bulk or interfere with window operation
• Durable materials engineered to withstand harsh automotive conditions

Construction & Design

The trim kit features open cell polyurethane foam, a material known for its excellent sound absorption and thermal insulation properties. This foam is treated with a polymer coating that enhances its resistance to moisture, wear, and environmental factors commonly encountered in automotive interiors. The black finish not only provides a sleek, professional appearance but also ensures the trim kit blends seamlessly with the Jeep Wrangler’s factory interior components.

Each piece is precision-cut to fit the rear side window trim area perfectly, ensuring a snug fit that prevents gaps where noise and heat could penetrate. The materials and design choices reflect DEI’s commitment to quality and durability, making this kit a long-lasting upgrade for your Jeep.

Installation & Fitment

Installation of the DEI Rear Side Window Trim Kit is straightforward and requires no special tools or modifications. The kit is designed to fit directly over the existing trim area, aligning precisely with the contours of the 2007–2018 Jeep Wrangler rear side windows. This allows for a quick upgrade that can be completed in under an hour by most DIY enthusiasts.

The trim kit complements the headliner installation process, providing a finished look while enhancing the overall sound deadening performance of your Jeep’s interior. Its lightweight construction ensures it does not interfere with window operation or vehicle functionality.

What's Included

• 2-piece rear side window trim kit
• Pre-applied adhesive backing for easy installation
• Installation instructions

Ideal For

This sound deadening trim kit is perfect for Jeep Wrangler owners who want to improve their vehicle’s interior comfort by reducing road noise and temperature fluctuations. It is especially beneficial for those who frequently drive on highways, off-road trails, or in varying weather conditions and desire a quieter, more insulated cabin without sacrificing the rugged style of their Jeep.

Design Engineering, Inc. (DEI) specializes in heat and sound management products for performance vehicles, including exhaust/header wraps, sleeves, reflective heat barriers, and shields. Controlling heat under the hood and near sensitive components is a key reliability upgrade for turbo builds, track cars, and tight engine bays—making DEI a staple brand in motorsports thermal protection.