Shop OEM General Motors Part # 12677664 (12648338). Exhaust Manifold Heat Shield. 1/2 TON. 2003-14, 5.3 liter. 3/4 & 1 TON. 4.8 & 6.0 LITER. 4.8 & 6.0 LITER, 4.8 liter. 4.8 LITER. 4.8 LITER

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

Exhaust Manifold Heat Shield

1/2 TON. 2003-14, 5.3 liter. 3/4 & 1 TON. 4.8 & 6.0 LITER. 4.8 & 6.0 LITER, 4.8 liter. 4.8 LITER. 4.8 LITER GAS. 5.3 LITER. 5.3 LITER GAS. 6.0 LITER. 6.0 LITER GAS. SEDAN,.
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.