Multiquip Y0378500200 Crank Vent Foam Insulation

The Multiquip Y0378500200 is a genuine OEM Crank Vent Foam Insulation designed for DCA-series ultra-silent diesel generators including the DCA400SSI4F, DCA400SSI4F3, DCA400SSI4F3PB, DCA400SSI4F3PD, and DCA125SSIU4F. Sourced directly from Multiquip, this part matches the original component specification for a direct, hassle-free installation. Keeping the crank vent path properly insulated is essential to maintaining the acoustic and thermal performance these generators are built around. Confirm your model code against the fitment list before ordering to ensure compatibility.

Key Features

• Genuine OEM Construction — Manufactured to the exact material density and profile specified for the DCA ultra-silent generator series, ensuring the foam seats correctly against crank vent surfaces.
• Drop-In Installation — Matches the original mounting geometry of the crank vent assembly, so the foam insulation installs without trimming or modification.
• Broad DCA Series Coverage — Fits DCA400SSI4F, DCA400SSI4F3, DCA400SSI4F3PB, DCA400SSI4F3PD, DCA400SSI4F3B, DCA125SSIU4F, and related Tier 4 ultra-silent generator variants.
• Acoustic Integrity — A damaged or missing crank vent foam insulation compromises the sound-attenuation design of the ultra-silent enclosure, allowing noise and heat to escape beyond design limits.
• Verified Multiquip Part Number — Y0378500200 is the correct OEM reference for this insulation component, eliminating guesswork when sourcing a replacement.

The crank vent foam insulation seals and cushions the crankcase ventilation pathway within the generator's sound-attenuating enclosure. Its primary role is to prevent noise, heat, and fumes from migrating through gaps around the crank vent opening, which is critical to preserving the ultra-silent performance these DCA-series generators are rated for. When this foam degrades, compresses permanently, or goes missing, the enclosure's acoustic seal is broken and internal heat management is affected — both of which can impact generator performance and operator environment on sensitive job sites.

DHS Equipment supplies genuine Multiquip OEM parts with the fitment accuracy contractors and equipment dealers depend on. For fitment questions or order support, contact the DHS Equipment parts team directly.

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.