The Multiquip M2311500203 Upper Inner-Cooler Hose is a genuine OEM component designed for DCA70SSJU4F, DCA70SSJU4i, and DCA125SSJU4i ultra-silent diesel generator models. As a direct OEM replacement, this hose is manufactured to the exact specifications required by Multiquip's super-silent and ultra-silent generator series, ensuring a correct, trouble-free installation. Sourced directly through an authorized Multiquip parts channel, M2311500203 is the correct part for both 60Hz and standard variants in the DCA and SSJU4 family. DHS Equipment stocks this part to keep your generator service on schedule.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's exact hose diameter, wall thickness, and bend geometry — critical for maintaining proper coolant flow through the intercooler circuit.
- Upper Position, Direct-Fit Routing — Engineered for the upper intercooler hose position, matching the factory routing and connection points without trimming or adapting.
- Confirmed Fitment — Verified for DCA70SSJU4F, DCA70SSJU4i, DCA125SSJU4i, and their 60Hz variants across Multiquip's super-silent and ultra-silent generator lines.
- Maintains Intercooler Efficiency — A sound, leak-free hose keeps charged air moving at the correct pressure from the turbocharger to the intercooler, sustaining generator output and protecting the engine under load.
- Prevents Boost Leaks and Overheating — A cracked or collapsed upper inner-cooler hose will bleed off boost pressure and allow heat to build in the intake charge, leading to derating or unplanned shutdowns on critical power applications.
The upper inner-cooler hose carries compressed air from the turbocharger outlet to the intercooler (charge air cooler) on turbocharged diesel generators. By routing hot, pressurized intake air through the intercooler, the system lowers charge air temperature before it enters the engine, improving combustion efficiency and protecting internal components under continuous load. When this hose cracks, hardens, or pulls loose at a connection, boost pressure drops and intake temperatures rise — symptoms that typically appear as reduced power output, increased fuel consumption, or automatic generator derating until the hose is replaced.
Part Details
| Part Number | M2311500203 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Upper Inner-Cooler Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA70SSJU4F |
| Diesel Powered Generators | DCA70SSJU4i |
| Diesel Powered Generators | DCA125SSJU4i 60Hz |
| Diesel Powered Generators | DCA70SSJU4F 60Hz |
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.
