Interior and Accessories› Sound Deadening Material

Hushmat

1978-1981 OLDSMOBILE GRAND PRIX DOO

$128.85

SKU: H018 624783

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Hushmat 624783 is a custom vehicle door sound deadening and insulation kit designed to cover two car doors. It is engineered to insulate interiors from extreme temperatures, ranging from -30 degrees Fahrenheit up to 550 degrees Fahrenheit. This material also effectively reduces heat, by more than 70 percent.

This sound deadening material is also cold flexible, capable of being bent around a 25 mm mandrel at -30 degrees C without cracking or loss of performance. It has been tested for peel strength, achieving a 90-degree peel at a crosshead speed of 300mm per.

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 624783

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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