Shop OEM General Motors Part # 12668107 (12634073). Shield. Heat. (Front). 6.6 LITER DIESEL. FROM 01/09/2007. Exhaust Manifold Heat Shield - Repair or Replace A tinny ticking, buzzing, or

A Heat reflective barrier to prevent items from coming in contact with the hot Exhaust Manifold. Exhaust Heat Shield. Exhaust Manifold Spark Plug (High Tension). Converter. Insulator.

Exhaust Heat ShieldExhaust Manifold Heat Shield

Fits Express 2500, Express 3500, Express 4500, Savana 2500, Savana 3500, Savana 4500, Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. FROM 01/09/2007.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your may be a bent or rusted exhaust heat shield.