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(888) 312-8812 Login SignupThere are layers to what makes an exhaust system work efficiently, and the muffler plays a major role. The Donaldson Muffler Round Style 3 is created to control noise, manage backpressure, and help optimize engine efficiency. At 48 inches in length, it provides a strong balance of sound reduction and airflow management, helping to keep the engine performing smoothly. Moreover, this muffler is tough enough to last through the punishing environment of trucking and construction work. When it comes to keeping an engine breathing right, the Donaldson M090823 makes all the difference.
| Body Length | 44.31 in |
| Overall Length | 48.00 in |
| Attenuation Hr | 20 dBA |
| Attenuation Lr | 15 dBA |
| Back Pressure High-range | Hg2.99 inch Hg) |
| Back Pressure Low-range | Hg0.98 inch Hg) |
| Back Pressure Mid-range | Hg2.01 inch Hg) |
| Body Diameter Maximum | 9.00 in |
| Inlet Clock Position | 12/31/1899 6:00:00 AM |
| Inlet Diameter | 4.02 in |
| Outlet Diameter | 5.03 in |
| Rated Flow Hr | 65.9 m³/min (2327 cfm) |
| Rated Flow Lr | 38.1 m³/min (1345 cfm) |
| Rated Flow Mr | 53.8 m³/min (1900 cfm) |
| Style | Style 3 |
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