Rear Trunk Soundproof Cotton for Tesla Model 3 Highland 2024+

Rear Trunk Soundproof Acoustic Cotton Liner for Tesla Model 3 Highland 2024+

Add an additional acoustic-insulation layer to the rear trunk of your Model 3 Highland. The high-density acoustic cotton is shaped to follow the trunk contours and helps reduce road noise, tire hum and external vibration reaching the cabin from the rear of the vehicle.

Additional Acoustic Insulation for the Rear Trunk

Helps Reduce Road & Tire Noise
The acoustic liner adds another sound-absorbing layer around the rear trunk area, helping reduce some of the noise transmitted through the rear body structure.

Helps Dampen Small Vibrations
The high-density material can help absorb some vibration and resonance around the covered trunk surfaces.

Additional Thermal Insulation
The supplier also describes the material as providing thermal-insulation properties in addition to acoustic absorption.

⚠️ Noise Reduction Will Vary by Vehicle & Road Surface

This product is intended to help reduce some noise and vibration transmitted through the rear trunk area. It does not make the vehicle completely soundproof, and the final result can vary with tires, road surface, speed, suspension, cabin condition and other noise sources.

High-Density Acoustic Material

⚠️ Water-Resistant Does Not Mean Waterproof

The supplier describes the material as water-resistant. Do not treat the liner as waterproof or allow it to remain saturated with water. If it becomes wet, remove it and allow it to dry thoroughly before reinstalling.

Vehicle Compatibility

⚠️ Model 3 Highland 2024+ Fitment

The current product title specifically lists Tesla Model 3 Highland 2024+. The supplier description also uses broader “Model 3 & Highland” wording, but does not publish a confirmed 2017–2023 Model 3 fitment range for this exact product. For accuracy, this listing should be treated as Highland 2024+ only.

Designed Around Normal Trunk Function

The supplier states that the slim fitted liner is designed not to obstruct the trunk latch, trunk lighting or normal storage capacity when correctly installed.

Bolt-On Installation Using Factory Points

1. Empty the Rear Trunk
Remove loose cargo and any items that may interfere with access to the installation area.

2. Identify the Factory Mounting Points
Locate the original reserved screw holes used by the liner.

3. Test-Fit the Acoustic Panels
Position the liner against the trunk contours and confirm that the mounting points line up correctly.

4. Secure Using the Existing Locations
Fasten the liner through the original mounting points as intended.

5. Check Panel Alignment
Make sure all sections sit flat without pinching nearby trim or wiring.

6. Verify Trunk Operation
Confirm that the trunk latch, lights, storage areas and moving components continue operating normally.

No Drilling or Adhesive Required

The supplier states that installation uses the vehicle's original reserved screw holes. No drilling, glue or permanent adhesive installation is required.

Cleaning & Maintenance

Routine Cleaning
Use a vacuum or soft brush to remove dust and loose debris from the acoustic surface.

Removable Design
The liner can be detached when deeper cleaning is required.

Dry Before Reinstallation
If the material becomes damp during cleaning, allow it to dry fully before reinstalling it in the trunk.

⚠️ Flammability Rating Is Not Published

The current supplier page does not publish a flame-retardant or automotive flammability certification for this material. Keep the liner away from open flames, high-temperature aftermarket equipment and exposed electrical faults.

Specifications

⚠️ Exact Acoustic Test Data Is Not Published

The supplier does not publish a tested decibel reduction value, acoustic NRC rating, material thickness, density, weight or certified thermal-insulation value. Do not add specific dB-reduction percentages or laboratory performance claims unless separately verified.

Package

Includes the rear-trunk soundproof acoustic cotton components supplied for this listing. The current product page does not publish an exact panel count or complete hardware quantity.

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