Donaldson M065140 Muffler – Round Style 3 for Diesel Generator Systems
The Donaldson M065140 muffler is a high-performance, OEM-grade exhaust component engineered to reduce noise and backpressure in diesel-powered generator applications. Its Style 3 configuration—featuring a side inlet and end outlet—makes it ideal for compact installations where space and airflow efficiency are critical.
Constructed with a durable black finish and precision-welded seams, this muffler is designed to withstand harsh operating environments. It offers excellent acoustic attenuation, helping to meet noise compliance standards in residential, commercial, and industrial generator enclosures.
With a rated flow capacity of up to 611 CFM and a sound attenuation range of 12–18 dBA, the M065140 supports optimal engine performance while minimizing exhaust noise. It is commonly used in off-road equipment and stationary diesel generators requiring reliable, long-lasting exhaust solutions.
- OEM Part Number: M065140
- Style: Round Style 3 (Side Inlet, End Outlet)
- Inlet/Outlet Diameter: 2.51 inches (63.88 mm)
- Body Diameter: 6.61 inches (167.89 mm)
- Body Length: 17.75 inches (450.85 mm)
- Overall Length: 22.04 inches (559.82 mm)
- Rated Flow: Up to 611 CFM (17.3 m³/min)
- Sound Attenuation: 12–18 dBA
- Back Pressure: 0.98–2.01 in Hg (25–51 mm Hg)
- Weight: Approximately 10.8 lbs (4.9 kg)
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