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Limit the noise your muffler makes with a new Freightliner Cascadia 113/125 aftermarket muffler. Shop aftermarket and custom mufflers in a wide selection of styles to find the perfect muffler for your semi-truck and your budget. 4 State Trucks carries the best aftermarket mufflers in the business at the best prices.

Freightliner Cascadia 113/125 DPF & Mufflers

Keep your Freightliner Cascadia 113/125 running efficiently with our DPF & Mufflers product lineup! We've got durable mufflers and diesel particulate filters (DPFs) in various sizes and styles to fit your truck. Choose from aluminized steel, stainless steel, or galvanized options from top brands like BESTfit and Cummins. Whether replacing worn-out parts or upgrading your system, these heavy-duty components deliver top performance and long-lasting value!