The Multiquip M3493506004 Acoustic Liner is a genuine OEM component designed for DCA125USI, DCA125USI3CAN, DCA150USJ, DCA150USJ2, and DCA150USJ3CAN series ultra-silent diesel generators. Sourced directly from Multiquip, this part meets the original design specification for sound attenuation in the generator enclosure. Confirmed fitment covers both the DCA125USI and DCA150USJ model families, including Canadian-market variants.
Key Features
- Genuine OEM Sound Attenuation Material — Manufactured to the exact material grade and density spec required for effective noise suppression in DCA-series enclosures.
- Drop-In Enclosure Fit — Contoured to match the interior panels of DCA125USI and DCA150USJ generator housings, installing directly without trimming or modification.
- Broad Model Coverage — Fits DCA125USI, DCA125USI3CAN, DCA150USJ, DCA150USJ2, DCA150USJ3CAN, and DCA150USJ3CAN (FR) ultra-silent generator variants.
- Noise Level Compliance — Restores the enclosure's rated sound attenuation performance, critical for operators working in noise-sensitive environments such as film sets, hospitals, and urban job sites.
- Preserves Ultra-Silent Rating — A degraded or missing acoustic liner directly raises the generator's audible output; replacing it with the correct OEM part maintains the low dB(A) rating these units are specified for.
The acoustic liner is the sound-absorbing material fitted inside the generator's enclosure panels. It works by dampening mechanical noise and exhaust resonance produced by the diesel engine, allowing DCA-series generators to operate at the low noise levels the ultra-silent designation requires. Over time, exposure to heat, vibration, and moisture can cause the liner to compress, delaminate, or deteriorate — when that happens, audible noise levels rise noticeably, and the generator may no longer meet site or permit noise limits.
For help confirming this part fits your specific unit, contact the DHS Equipment parts team with your model and serial number.
Part Details
| Part Number | M3493506004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Acoustic Liner |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA125USI3CAN |
| Diesel Powered Generators | DCA125USI |
| Diesel Powered Generators | DCA150USJ |
| Diesel Powered Generators | DCA150USJ3CAN |
| Diesel Powered Generators | DCA150USJ2 |
| Diesel Powered Generators | DCA150USJ3CAN (FR) |
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.
