Multiquip M3493400904 Acoustic Kit Complete Front Duct Left

The Multiquip M3493400904 Acoustic Kit Complete Front Duct Left is a genuine OEM component designed for DCA-series ultra-silent diesel generator models including the DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU2-FEMA, and DCA125SSJU-GEER. As a factory-sourced part, M3493400904 meets the exact material and dimensional standards set during original production, ensuring the enclosure's sound-attenuation system performs as engineered. This left-side front duct assembly is a direct OEM replacement, making it the correct choice when restoring a damaged or deteriorated acoustic panel on your ultra-silent generator. Confirm your model code against the fitment list above before ordering to ensure an accurate match.

Key Features

• Genuine OEM Sound Attenuation Integrity — Factory-sourced acoustic material and panel geometry maintain the enclosure's original noise-reduction rating, critical for noise-sensitive or regulated worksites.
• Left-Side Front Duct Configuration — This assembly is specifically the left-hand front duct; it locates and mounts to the original attachment points without alteration to the enclosure frame.
• Confirmed Fitment for DCA-Series Ultra-Silent Generators — Verified for DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU2-FEMA, and DCA125SSJU-GEER models.
• Restores Airflow and Acoustic Channel Performance — A cracked or missing front duct disrupts the designed airflow path through the enclosure, causing both elevated noise output and potential heat buildup around internal components.
• Enclosure Compliance for Noise-Regulated Applications — Ultra-silent generators are frequently deployed under local noise ordinances or contract specifications; maintaining a complete, undamaged acoustic enclosure supports continued compliance with those requirements.

The front duct on a Multiquip ultra-silent generator enclosure is a channeled acoustic panel that guides cooling airflow into the enclosure while simultaneously absorbing and blocking sound transmission from the engine and alternator. By directing air through a baffled path rather than a straight opening, it allows the generator to breathe adequately without compromising the enclosure's noise-reduction performance. When this duct is cracked, broken, or missing, sound levels rise noticeably and airflow management through the enclosure is compromised, which can lead to elevated operating temperatures and accelerated wear on internal components over extended run cycles.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.