The Multiquip D4311500103 Radiator Hose is a genuine OEM component designed for DLW300ES and DAW500SA4 series welder/generators. Sourced directly from Multiquip, this hose matches the original equipment specification, ensuring a correct, leak-free connection within the cooling system. It is confirmed compatible with DLW300ES, DLW300ESA, DLW300ESA1, and DAW500SA4 models. Keeping the cooling circuit intact with the right OEM part helps maintain consistent engine temperatures and protects against overheating during extended operation.
Key Features
- Genuine OEM Cooling Circuit Integrity — Manufactured to original Multiquip specifications, delivering the correct inner diameter, wall thickness, and compound rating for the DLW and DAW cooling systems.
- Direct-Fit Replacement — Engineered to connect to the factory coolant ports without rework, matching the original hose routing and clamp positions on DLW300ES and DAW500SA4 units.
- Confirmed Fitment — Compatible with DLW300ES, DLW300ESA, DLW300ESA1, and DAW500SA4 welder/generator models.
- Coolant Containment Under Pressure — A properly functioning radiator hose maintains sealed coolant flow between the engine and radiator; a cracked or swollen hose leads to coolant loss, overheating, and potential engine damage.
- Fuel System Safety Compliance — Maintaining a sound cooling system on diesel welder/generators helps prevent thermally driven fuel and electrical component failures during sustained load operations.
The radiator hose forms a flexible, pressure-rated link between the engine block and the radiator, allowing hot coolant to circulate out to the radiator for heat dissipation and back into the engine once cooled. On diesel welder/generators like the DLW300ES and DAW500SA4, maintaining this flow is critical because these machines often run at sustained loads for welding or power generation. When a radiator hose deteriorates — swelling, cracking, or collapsing — coolant escapes or flow is restricted, causing engine temperatures to spike rapidly and risking serious internal damage.
Part Details
| Part Number | D4311500103 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radiator Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Welders | DAW500SA4 |
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.