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PPE Heat/Sound Firewall Insulator For 1999-2007 GM Sierra/Silverado/Tahoe/Yukon

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Was: $299.99
Sale: $269.99
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Save: $30.00

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Diesel engines produce a lot of heat, especially in high-output situations like towing, racing, and light-to-light driving. Time to upgrade your tattered, dirty firewall insulation with the brand new PPE Insulator Firewall.

Create a barrier between you and the heat on your 2001-2007 Duramax diesel engine with this custom-fit replacement. This functional upgrade features merrowed stainless steel wire edging for long-lasting performance and grommets for an OEM fit. The ceramic fiber interior is sandwiched between the tightly woven silicone fiberglass outer fabric and the woven silica inner panel. The combination of materials and workmanship create a temperature resistance up to 1,290 degrees.



  • Easy install
  • Made in USA
  • Ceramic fiber interior.
  • Merrowed stainless steel wire edging
  • Can be installed without removing engine
  • Reduced engine heat and noise entering the cab
  • Tightly woven silicone fiberglass and silica outer fabrics



  • 2000-2006 Suburban, Tahoe, Yukon
  • 1999-2006 Sierra/Silverado – 1500/2500/3500
  • 2001-2006 and Sierra/Silverado with GM 6.6L Duramax
  • 2007 Sierra/Silverado Classic 1500/2500/3500 – GM Gas and GM 6.6L Duramax



  • Can be installed without removing engine
  • Direct Replacement No Modifications Required


  • 149000105
  • 149000105
  • 840171218800
  • PPE
  • In Stock & Ready To Ship!
  • New

Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • FREE Ground Shipping

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