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