Multiquip M3493401204 Acoustic Kit A.S. Rear Door Duct

The Multiquip M3493401204 Acoustic Kit A.S. Rear Door Duct is a genuine OEM component designed for DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU-GEER, and DCA125SSJU2-FEMA ultra-silent diesel generator models. As a direct factory replacement, this kit ensures the rear door duct assembly maintains the acoustic performance these generators are engineered to deliver. Sourced directly through Multiquip's OEM supply chain, part number M3493401204 is the correct specification for these DCA series units. DHS Equipment supplies this as an authorized genuine OEM part, so you can be confident in fitment and quality.

Key Features

• Genuine OEM Acoustic Performance: — Manufactured to the exact material and construction spec of the original, preserving the sound-dampening integrity of the rear door duct assembly.
• Direct Drop-In Replacement: — Engineered to mount into the rear door duct location on DCA series ultra-silent generators without alteration or adaptation to the enclosure.
• Broad DCA Series Compatibility: — Confirmed fitment across DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU-GEER, and DCA125SSJU2-FEMA generator configurations.
• Noise Level Compliance: — The rear door duct acoustic kit is a key component in maintaining the ultra-silent enclosure rating; a compromised or missing kit can allow noise levels to exceed the generator's rated output, which matters on noise-restricted worksites.
• Enclosure Integrity: — Proper installation of this kit supports correct airflow channeling through the duct while containing sound, ensuring the enclosure functions as a complete system rather than allowing acoustic gaps around the rear door.

The acoustic kit for the rear door duct is part of the sound-attenuation enclosure system built into Multiquip's DCA ultra-silent generator series. These enclosures are engineered to channel cooling airflow through specific duct paths while lining those paths with sound-absorbing material, keeping operational noise to a minimum. When the rear door duct acoustic lining deteriorates, separates, or goes missing, the enclosure loses its ability to contain exhaust and mechanical noise effectively, which can push the generator above its rated decibel level and cause issues on noise-sensitive or noise-regulated job applications.

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.