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The Wehrli Custom Fab bumper grille for 2015–2019 GMC Sierra 2500/3500 HD Duramax (LML/L5P) in flat black is a heavy-gauge stainless steel grille built to preserve airflow to the transmission cooler while improving front-end protection from road debris. It’s intended as a finishing touch that balances function and appearance. The grille installs with basic hand tools, making it a straightforward upgrade for compatible Sierra HD models.
Wehrli 15-19 GMC Sierra 6.6L LML/L5P Duramax Bumper Grille - Flat Black
