The Multiquip 1624173370 is a genuine OEM Water Return Pipe designed for DLW300ES, DLW400ES, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH series diesel light welders and super-silent diesel generators. As a factory-original component, this pipe meets the exact material and dimensional standards set during original production, ensuring a correct, trouble-free installation. Sourced directly from Multiquip, part number 1624173370 is the same component installed at the factory — no substitutions, no guesswork. DHS Equipment supplies this part to keep your Multiquip welder or generator running at its designed operating temperature.
Key Features
- Genuine OEM Cooling Circuit Integrity — Factory-original construction ensures the correct internal diameter and material grade to maintain proper coolant flow rate throughout the cooling circuit.
- Direct-Fit Replacement — Engineered to connect at the exact return-line routing points of the original assembly, allowing straightforward installation without reworking hose runs or fittings.
- Broad Series Compatibility — Confirmed fitment across DLW300ES, DLW400ES, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH models.
- Sustained Thermal Management — A correctly functioning water return pipe keeps coolant cycling efficiently back to the radiator; a cracked or leaking pipe causes coolant loss, overheating, and unplanned shutdowns.
- Pressure-Rated Cooling System Component — Built to withstand the operating pressures of a closed-loop liquid cooling system, reducing the risk of failure under sustained load conditions.
The water return pipe is a key component in the engine's liquid cooling circuit. It carries coolant from the engine back toward the radiator after heat has been transferred away from the engine block, completing the continuous loop that keeps operating temperatures in the safe range. When this pipe cracks, corrodes, or develops a leak, coolant level drops, the engine begins to run hot, and sustained operation risks serious internal engine damage — making prompt replacement critical for any welder or generator that depends on liquid cooling to handle continuous-duty load cycles.
Part Details
| Part Number | 1624173370 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Water Return Pipe |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
| Diesel Powered Generators | DAC7000SSA |
| Diesel Powered Generators | DAC7000SSW |
| Diesel Powered Generators | DAC7000SS |
| Diesel Powered Generators | DA7000SSA2GH |
| Diesel Powered Generators | DA7000SSA2 |
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.
