Pacific Performance Engineering 149000105 Heat/Sound Firewall Insulator Black

Replace your worn, tattered firewall insulation with the Pacific Performance Engineering Heat/Sound Insulator Firewall. This custom-fit replacement creates a barrier between your engine and cab, significantly reducing heat transfer and noise intrusion. Designed specifically for diesel engines that generate extreme temperatures during towing, racing, and heavy-duty applications, this insulator delivers professional-grade thermal and acoustic protection.

Advanced Multi-Layer Construction:

• Ceramic fiber interior core for maximum heat resistance
• Tightly woven silicone fiberglass outer fabric for durability
• Woven silica inner panel for enhanced thermal protection
• Temperature resistance up to 1,290 degrees Fahrenheit

Premium Features:

• Merrowed stainless steel wire edging for long-lasting performance
• Factory-style grommets ensure proper OEM fitment
• Bolt-on installation—no drilling required
• Can be installed without removing the engine
• Direct replacement for GM part numbers 15829509, 15940303, 15078177, 15998600

This firewall insulator not only restores your engine bay to a clean, factory appearance but also improves interior comfort by reducing radiant heat and engine noise. The professional-grade construction and custom fit make this an essential upgrade for any diesel truck owner looking to enhance both aesthetics and functionality.