Interior and Accessories› Sound Deadening Material

Hushmat

1970-1974 DODGE CHALLENGER DOOR KIT

$165.64

SKU: H018 666743

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 666743 is a custom vehicle door sound deadening and insulation kit designed to cover two car doors. It effectively reduces noise and vibration, with claims of over 50% noise reduction and more than 40% heat reduction.

It is capable of eliminating low-frequency resonant noise from 0 to 1,000 Hz and can absorb wind noise, engine noise, road/tire noise, and exhaust noise up to 4000 Hz. The insulation performs across a wide temperature range, from -30°F to 550°F.

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 666743

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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