Multiquip M3453000503 Left Side Door

The Multiquip M3453000503 Left Side Door is a genuine OEM enclosure component designed for DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU-GEER, and DCA125SSJU2-FEMA series ultra-silent diesel generators. As a direct factory replacement, this door is manufactured to the same specifications as the original, ensuring a proper fit within the generator's sound-attenuating enclosure. Sourced directly through Multiquip's authorized parts network, the M3453000503 is the correct part for restoring your unit's enclosure integrity and keeping it operating as intended.

Key Features

• Genuine OEM Construction — Manufactured to exact factory tolerances for the DCA series enclosure, ensuring correct panel alignment, hinge engagement, and latch operation without rework.
• Left-Side Fitment — Specifically configured for the left side panel position on compatible DCA generator models; not interchangeable with right-side or rear door assemblies.
• Broad DCA Series Compatibility — Confirmed fitment across DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU-GEER, and DCA125SSJU2-FEMA ultra-silent generator variants.
• Enclosure Integrity — A properly sealing side door is critical to maintaining the acoustic dampening performance of the ultra-silent enclosure; a damaged or missing door compromises sound attenuation and exposes internal components to the elements.
• Weather and Access Protection — Restores the generator's ability to shield internal electrical and mechanical systems from moisture, dust, and debris during operation or storage.

The left side door on a DCA series ultra-silent generator is a structural panel of the sound-attenuating enclosure that surrounds the generator set. It provides access to internal service points on the left side of the machine while sealing those components from environmental exposure during operation. When the door is damaged, misaligned, or missing, the enclosure can no longer contain sound effectively, and internal components become vulnerable to moisture and contaminant ingress — both of which can accelerate wear and lead to more serious mechanical or electrical issues over time.

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.