Interior and Accessories› Sound Deadening Material

Hushmat

TRUNK CUSTOM INSULATION KIT POLYMER BLACK BACKING SILVER

$167.38

SKU: H018 617134

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The HushMat 617134 is a trunk sound and thermal insulation kit designed for the 1938-1940 Cadillac 70 Series Sedan. This kit aims to reduce interior noise and heat, addressing issues like drum-like vibrations from the trunk and unbearable heat from the exhaust.

HushMat automotive sound deadening is engineered to reduce noise levels by up to 15 decibels, allowing for a more enjoyable listening experience for music or conversations within the vehicle. The material also provides thermal insulation to help maintain a cooler cabin.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHushmat
Part NumberH018 617134

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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