Nelson 86531M Heavy Duty Semi-Baffled Universal Truck Muffler

$534.99

Nelson's heavy duty, semi-baffled universal truck muffler. 
Inlet ID (A): 5" (127mm)
Outlet ID (B): 5" (127mm)
Barrel Diameter (C): 10" (254mm)
Barrel Length (D): 44" (1120mm)
Overall Length (E): 51" (1295mm)
Inlet Length (H): 3" (76mm)
Positioning: Centre/Centre
Internals: Semi-Baffled
Max Flow (3" Hg): 2800 CFM
Max Flow (2" Hg): 2330 CFM
Application: Universal
OEM Cross References:

Donaldson: M100580, M100585

Ford: 9575M100580

Freightliner: A04140750, M100585

International: 1647375C1, 1688662C1

Kenworth: K16854

Mack: 2ME3104

Nelson: 86531M

Stemco: 1909872

Volvo: 230010081

Nelson OEM mufflers reduce exhaust noise to the level required to meet EPA truck noise limits and Victorian regulations. 

OEM models can be quieter (more then 3 dBA) than Nelson economy versions, depending on make of engine. Each features:

  • Unpainted aluminised steel construction (1.6mm wall)
  • Welded seams for added longevity
  • Outlet end of muffler is domed for vertical installation
  • Inlet end of muffler is flat, for ease of mounting onto existing brackets
  • 4 year manufacturer warranty.

The semi-baffled design is suitable for a wide range of engines, and is a quieter option than straight through mufflers, without being too restrictive - has a good flow rate, and is often used as a silent partner equivalent. 

Available in a range of barrel lengths, barrel diameters and inlet/outlet sizes; please contact us with your specific requirements.

Images are for indicative purposes only; may indicate a muffler with different internal configurations.