Buy 2003 Buick Century Exhaust Manifold Heat Shield. 2.5 LITER. 2.5 LITER, all. 2.5 LITER, w/o PZEV LITER, ENGINE, PZEV - OEM Buick Part # 12639417

Exhaust Manifold Heat Shield.
A Heat reflective barrier to prevent items from coming in contact with the hot Exhaust Manifold.

Exhaust Manifold Heat Shield

Fits ATS, Canyon, Colorado, Envision, Impala, Malibu, Malibu Limited

2.5 LITER. 2.5 LITER, all. 2.5 LITER, w/o PZEV. Sedan, 2.5 LITER, all.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your 2003 Buick Century may be a bent or rusted exhaust heat shield.