The 5" Muffler - 44.5" x 10" from Grand Rock is a genuine Grand Rock heavy-duty truck part you can count on. A great way to dress up your rig while keeping airflow where it should be — and built for an easy install.
5" Muffler 44.5" Body 10" Diameter
Fitment: Confirm this part fits your truck's make, model, and year before ordering — our parts team is glad to help.
Why Fitzgerald Truck Parts: fast shipping on in-stock parts, our fitment guarantee, and real heavy-duty parts experts on the phone. Questions? Call 888-873-0448.
