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2018-2025 Jeep Wrangler JL (4 Door) | Sound Assassin Packages

Original price $ 11.95 - Original price $ 279.00
Original price
$ 11.95
$ 11.95 - $ 279.00
Current price $ 11.95

Reduce noise and improve comfort in your Jeep Wrangler JL 4-Door with our Sound Assassin Kits. Premium soundproofing for a quieter, more enjoyable ride.

Processing time

Most orders ship out within 1-3 business days.

Product Description

Sound Assassin is our premium Sound Deadening & Thermal Insulation material, specifically designed to reduce road noise and heat inside your Jeep Wrangler JL 4-Door. It's an excellent addition to any Jeep build, enhancing ride comfort in all climates.

With 30+ years of experience in automotive upholstery, we've tested countless materials — and butyl-based sound deadening has consistently proven to be the most effective and easy to install.

Sound Assassin Demonstration [Video]

How Effective is Sound Assassin for Sound Deadening? This video demonstrates how well our Sound Assassin products deaden the vibration in a large area with only a small strip. 

Compatibility & Fitment

Compatible with all Trim Levels (including Sport, Willys, Sahara, Rubicon & more) and the Jeep Wrangler 4xe!

Features & Benefits
  • Butyl-based Damping Pads
  • Reduces Heat & Road Noise
  • Temperature range: -30° to 400° degrees Fahrenheit
  • EASY Instillation! Very pliable & easy to work with
  • Material cuts easily with standard razor knife or scissors
  • Peel and stick adhesive – no extra glue required
  • No odor compared to competitor products from China
  • Made in the USA!
  • 100% Satisfaction Guaranteed!
Product Details
Full Floor Package:
  • Includes: (30) - 20"x 14.5" individual sheets of Sound Assassin
  • Total Square Feet: 60.42 sq ft
  • FREE Shipping within the Contiguous USA!

*This package is enough to cover the entire floor of your 4 Door Jeep including interior wheel wells.

Half Floor Package:
  • Includes: (15) - 20" x 14.5" individual sheets of Sound Assassin
  • Total Square Feet: 30.21 sq.ft
  • Shipping calculated at checkout. *FREE Shipping included on orders over $175

*This package is enough to cover about half the interior floor of your 4 Door Jeep.

Jeep Hard Top Packages:
  • Includes: (17) - 20" x 2" individual Sound Assassin Strips
  • Complimentary Tool (light-weight, seam roller)
  • Shipping calculated at checkout. *FREE Shipping included on orders over $175

*The Hard Top Packages are enough to cover your Jeep Hard Top like above picture.

Single Sheets of Sound Assassin:
  • Includes: (1) - 20" x 14.5" individual sheet of Sound Assassin
  • Shipping calculated at checkout. *FREE Shipping included on orders over $175
Heavy Duty Seam Roller:
  • Solid rubber roller with 4" handle
    Smooth and long-lasting rolling action
  • Provides a firm bond when applying Sound Assassin
  • Shipping is calculated at checkout
    *FREE Shipping included on orders over $175

*The Heavy Duty Seam Roller is recommended for all Sound Assassin Floor Kits (We provide a complimentary, light weight roller for the Sound Assassin Roof Packages).

Installation Instructions

For full installation instructions and videos, visit our Installation Page.

Shipping & Returns

Shipping Information

  • Processing Time: Most orders ship out within 1-3 business days. Processing times may be longer during sales and peak periods.
  • FedEx Ground/Home Delivery: Delivery within 3-5 business days once your order has shipped. Free standard shipping on orders $175+ within the Contiguous USA.
  • FedEx Overnight or FedEx 2-Day: Orders are typically shipped the following business day. Delivery cost calculated at checkout.
  • No PO Boxes: We don’t ship to PO Boxes within the lower 48. Please provide a physical address.
  • Alaska, Hawaii & US Territories: Choose USPS or FedEx depending on your location. Delivery cost calculated at checkout.
  • Military Addresses: We ship to APO/FPO addresses via USPS. Delivery cost calculated at checkout.
  • Worldwide Shipping: FedEx International Connect Plus & FedEx International Priority options available. Delivery cost calculated at checkout.

Returns & Exchanges

  • 100% Satisfaction Guarantee: We offer a 60-day return policy for most items, excluding final sale and custom orders.
  • Return Process: Contact us at Support@HotheadHeadliners.com to start a return. You will be responsible for the cost of shipping unless the return is due to an error or defective product on our part.
  • Exchanges: To be eligible for an exchange, your item must be in the same condition that you received it and in its original packaging. You will be responsible for the cost of shipping unless the exchange is due to an error or defective product on our part.

For more details, please see our Return Policy.

Made in the USA

Handcrafted with premium materials for unmatched quality. Proudly made in the USA.

100% Satisfaction Guarantee

We stand behind our products with a 100% satisfaction guarantee. Shop with confidence.

Trusted by Over 40,000 Customers

Join thousands of happy Jeep and Bronco owners who love our products. Read their reviews.

Flexible & Secure Payment Options

Enjoy flexible and secure payment options, including buy now, pay later.

Solve Common Jeep Problems

Tired of your Jeep Wrangler being too hot in the summer, too cold in the winter, and too noisy on the road? Hothead Headliners offer the perfect solution with our premium headliners designed to provide superior insulation, noise reduction, and enhanced comfort.

Jeep Wrangler Hard Top Headliner Insulates Against Cold

Superior Insulation

Stay warm in winter with high-quality insulation. Our headliners help your Jeep warm up faster and maintain a cozy temperature, reducing the need to crank the heat.