4" In/Out, 8½" x 34" Long Flowtech Mid-Range Straight Through Muffler - R Model Mack
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Aluminised Steel, Mid-Range Straight through Muffler. 4" (102mm) In/Out, 8½" (216mm) Barrel Diameter, 34" (864mm) Barrel Length.
Direct fit muffler for R Model Mack Trucks. Part numbers for cross reference: 2ME336B, 86127M, M8534-400E. Can also be used as a Universal Muffler.

Flowtech's Mid-Range, or economy universal truck muffler with a straight through internal design. 
| Barrel Length: | 34" (864mm) | 
| Barrel Diameter: | 8½" (216mm) | 
| Inlet ID: | 4" (102mm) | 
| Outlet ID: | 4" (102mm) | 
| Positioning: | Centre/Centre | 
| Internals: | Straight Through, Glass Packed | 
| Application: | Universal & Direct Fit | 
More affordable than the Flowtech Performance range of mufflers, they are a popular option for larger fleet operators. Each features:
- Unpainted aluminised steel construction (1.6mm wall)
 
- Fully welded (not folded) seams for added longevity
 
- Domed end plates to prevent moisture build up
 
- Fibre glass packing
- 1 year manufacturer warranty.
 
The straight through design of the M8534-400 helps deliver enhanced performance and increased flow.


