The Multiquip C3311500704A Upper RS Intercooler Hose is a genuine OEM component designed for DCA400SSI4F3B and DCA400SSI4F3PD series super-silent diesel generators. As a factory-sourced part, C3311500704A meets the original design specifications for these high-output units, ensuring a direct, correct-fit installation with no guesswork. This hose is confirmed compatible with DCA400SSI4F3B, DCA400SSI4F3PD, and the Sunbelt-designated DCA400SSI4F3PD variant, covering the full range of Tier 4 super-silent generator applications in this family. Sourcing the correct OEM intercooler hose keeps your generator's forced induction system operating as the engineers intended, protecting engine output and fuel efficiency on the job.
Key Features
- OEM Material Integrity — Manufactured to the original compound and wall-thickness specification, ensuring correct boost-pressure retention under sustained load cycles typical of large diesel generators.
- Direct-Fit Upper RS Position — Engineered to match the upper RS routing path exactly, connecting intercooler outlets without trimming, adapting, or re-clamping adjacent hardware.
- Confirmed Generator Fitment — Verified for DCA400SSI4F3B, DCA400SSI4F3PD, and the Sunbelt DCA400SSI4F3PD variant — all Tier 4 super-silent generator models in this series.
- Sustained Charge-Air Flow — A correctly seated intercooler hose maintains the sealed charge-air path from intercooler to intake; a cracked or collapsed hose causes boost loss, increased exhaust temperatures, and reduced generator output under load.
- Boost-System Safety — Hose integrity is critical in forced-induction diesel systems — a failed intercooler hose can allow unmetered air ingestion or cause engine derating, making OEM-spec replacement the right call for any generator relied upon in continuous or standby power applications.
The intercooler hose carries compressed, heat-exchanged air from the intercooler to the engine's intake manifold, giving the engine a denser, cooler air charge to support cleaner combustion and full-rated power output. In a large Tier 4 super-silent generator like the DCA400SSI4F3 series, this hose operates under sustained positive pressure and elevated temperatures, making material quality and fitment accuracy essential. When the hose degrades — through cracking, softening, or connection loosening — charge-air pressure drops, combustion efficiency falls, and the generator may derate or produce excessive exhaust emissions.
Have questions about fitment or need help confirming this is the right part for your machine? Contact DHS Equipment — our team is ready to help.
Part Details
| Part Number | C3311500704A |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Upper RS Intercooler Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA400SSI4F3B |
| Diesel Powered Generators | DCA400SSI4F3PD |
| Diesel Powered Generators | DCA400SSI4F3PD (SUNBELT) |
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.
