The Multiquip D5311501203 Radiator Hose Low is a genuine OEM cooling system component designed for the DLW400ESA4 diesel light welder. As a direct OEM replacement, part D5311501203 is built to the same specifications as the original, ensuring a correct, leak-free connection between the radiator and engine cooling circuit. If you're servicing or restoring the cooling system on a DLW400ESA4, this is the exact hose your machine was built with.
Key Features
- OEM-Matched Hose Material: — Constructed to the same compound and wall thickness as the original, resisting heat, coolant degradation, and pressure cycling under continuous generator load.
- Correct Lower-Circuit Routing: — Engineered specifically for the low-side radiator connection on the DLW400ESA4, fitting the existing hose barbs and clamp positions without modification to hose length or diameter.
- Confirmed DLW400ESA4 Fitment: — Verified for the Multiquip DLW400ESA4 diesel light welder; always cross-reference part number D5311501203 before ordering to confirm compatibility with your unit.
- Maintains Proper Coolant Flow: — A correctly sized lower radiator hose sustains the coolant volume and flow rate needed to prevent overheating during extended welding or power generation operation.
- Genuine Multiquip OEM Part: — Sourced directly from Multiquip, ensuring the part meets the design intent of the original cooling system and integrates with existing clamps and fittings.
The lower radiator hose carries cooled coolant from the bottom of the radiator back to the engine's water pump, completing the cooling circuit that keeps engine temperature within the safe operating range. On a diesel light welder like the DLW400ESA4, the engine runs under sustained load, making a fully intact cooling circuit essential — a cracked, collapsed, or swollen lower hose restricts coolant flow and can lead to rapid overheating and engine damage. Replacing a worn hose with the correct OEM part, Multiquip D5311501203, restores the integrity of the entire cooling system.
Part Details
| Part Number | D5311501203 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radiator Hose Low |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ESA4 |
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.
