The Multiquip M3310500403 is a genuine OEM Upper Radiator Hose designed for the DCA125SSJU, DCA100SSJU, and related DCA ultra-silent diesel generator models. As a direct OEM replacement sourced through Multiquip's authorized parts program, the M3310500403 delivers the exact material grade, diameter, and end configuration specified for these machines. Confirmed fitment covers the DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU2-FEMA, and DCA125SSJU-GEER generator variants. Keeping the cooling circuit sealed and flowing correctly is critical to generator uptime, and using the correct OEM hose ensures the connection holds under the heat cycles and pressures these machines produce.
Key Features
- OEM-Grade Coolant Hose Material — Engineered to withstand the continuous heat cycling and coolant pressure demands of Isuzu-powered ultra-silent diesel generators.
- Exact-Fit Upper Routing Profile — Matches the original hose routing from the engine to the radiator inlet, seating correctly on both connection points without trimming or adaptation.
- Confirmed Fitment for DCA Series Generators — Verified for DCA125SSJU, DCA125SSJU2, DCA100SSJU, DCA125SSJU2-FEMA, and DCA125SSJU-GEER models.
- Maintains Cooling System Integrity — A correctly sealed upper hose keeps coolant flow consistent between the engine and radiator, preventing overheating during extended load operation.
- Genuine Multiquip OEM Component — Part number M3310500403 is sourced directly from Multiquip, ensuring the hose meets the original design specification for these generator models.
The upper radiator hose carries hot coolant from the engine's outlet port to the top of the radiator, where the cooling process begins. Without a properly sealed and structurally sound upper hose, the cooling system loses pressure, coolant escapes, and the engine temperature rises — ultimately triggering thermal shutdown or causing serious engine damage. On high-output diesel generators like the DCA125SSJU and DCA100SSJU that run under sustained electrical loads, a degraded or cracked upper hose is one of the most common causes of unexpected overheating. Replacing it with the correct OEM part restores the integrity of the full cooling circuit.
Part Details
| Part Number | M3310500403 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Upper Radiator Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA125SSJU |
| Diesel Powered Generators | DCA125SSJU2 |
| Diesel Powered Generators | DCA100SSJU |
| Diesel Powered Generators | DCA125SSJU2-FEMA |
| Diesel Powered Generators | DCA125SSJU-GEER |
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.
