PAI part description

Features & Benefits

  • Reduces exhaust noise for a quieter ride
  • Helps direct exhaust gases away from the vehicle safely
  • Necessary replacement when the old muffler is rusted or damaged
  • Made to survive high temperatures and hazardous conditions

PAI Exhaust Muffler

No one likes a loud, rattling exhaust. The PAI Exhaust Muffler takes care of that by reducing noise and improving airflow. A bad muffler can lead to backpressure issues, affecting engine performance and fuel use. With this replacement, the system stays quieter, and exhaust gases move efficiently, keeping the engine running properly. Excessive exhaust noise can also be a sign of leaks or internal damage, which may lead to unwanted emissions and compliance issues. The PAI 1899 helps maintain the truck’s performance while keeping it within noise and emission regulations.

Product Attributes

Notes Muffler Vertical 10.00in x 15.00in Oval 25.00in Overall Diameter 22.00in Body Length Inlet Offset Location: Side 4.00in Inlet Tube 4in Outlet Tube 4.50in Offset - Outlet Tube Center Line to Muffler Center LIne Mack current DM Model Application

Part Interchanges

PAI 1899 Cross Reference

We have 4 alternatives for the 1899 by PAI:

Backed by 40 years of part manufacturing experience, PAI Industries® has been providing the heavy-duty truck industry with high-quality service parts for the engine, gearing, exhaust, suspension, and electrical systems. This brand has been manufacturing its products in the USA since 1973, and it owes its worldwide success to its dedicated and experienced employees. PAI takes pride in being an ISO 9001:2015-certified auto and truck parts manufacturer, operating in a 54,000 square feet facility that is equipped with state-of-the-art machinery. PAI’s technicians also perform 100% testing and inspection in its oil pump, water pumps, gear, synchronizer, and cylinder head to ensure durability and reliable performance.

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