OER Parts offers a wide selection of Cowl, Dash & Firewall Insulation and Sound Deadeners for your 1974 Dodge Dart. OER Parts offers 1974 Dodge Dart Acousti Shield Insulation, 1974 Dodge Dart HushMat Insulation, 1974 Dodge Dart Dynamat Xtreme Interior Insulation, 1974 Dodge Dart Quiet Ride Insulators, 1974 Dodge Dart Thermo-Tec, 1974 Dodge Dart Thermo-Guard FR, 1974 Dodge Dart Firewall Pad Retainer Clips, 1974 Dodge Dart LizardSkin Sound Control, and 1974 Dodge Dart LizardSkin Sound Control & Ceramic Insulation Kit.