Buy 2020 Chevrolet Express 3500 LS Extended Passenger Van Exhaust Manifold Heat Shield. 5.3 & 6.2 LITER LITER, Left - OEM Chevrolet Part # 12629339

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.

Exhaust Manifold Heat Shield

Fits Escalade , Escalade ESV, Sierra 1500, Sierra 1500 Limited, Silverado, Suburban , Tahoe , Yukon, Yukon XL

5.3 & 6.2 LITER.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your 2020 Chevrolet Express 3500 may be a bent or rusted exhaust heat shield.