Peterbilt 387 Muffler Replacement

Boost your Peterbilt 387's exhaust system with this premium 11 Inch Diameter Muffler, featuring a 5 Inch inlet and outlet and a 55 Inch body length. Engineered with internal baffles to manage sound and back pressure, this muffler helps maintain performance and fuel efficiency while minimizing noise. It's a great aftermarket solution for durability, longevity, and smooth operation on the road.

* High Quality Muffler
* 5 Inch Inlet And Outlet Diameter
* 11 Inch Body Diameter
* 55 Inch Body Length
* Interior Baffles
* Sold Individually
* Warranty On Truckmann Mufflers Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part (Not OEM)***

* Replaces OE Number M110824

** This Item Ships Direct From The Manufacturer And Will Arrive In A Separate Package And Possibly A Different Time Than The Balance Of Your Order **