The Multiquip 0802081403 Reserve Tank is a genuine OEM replacement built for DLW and DAW series diesel welders and DAC7000SS series diesel generators, including the DLW400ES, DLW330X2, DLW300ES, DAW500SA4, DLW500ESA4, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH. As a genuine OEM component, it is manufactured to the same standards as the original part, ensuring a direct, hassle-free installation. Sourced from Multiquip and sold by DHS Equipment, the 0802081403 is the correct part for operators who need a dependable, specification-accurate replacement.
Key Features
- Genuine OEM Construction — Manufactured to original Multiquip specifications, so tank dimensions, inlet and outlet positions, and material grade match the unit it replaces exactly.
- Drop-In Installation — Engineered to mount in the original reservoir location with existing hardware, requiring no drilling, cutting, or adapter fittings.
- Broad Fitment Across Welder and Generator Families — Confirmed fit for DLW400ES, DLW330X2, DLW300ES, DAW500SA4, DLW500ESA4, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH equipment.
- Coolant System Integrity — A sound reserve tank maintains correct coolant volume in the overflow circuit, preventing air ingestion and protecting the engine or generator end from heat-related damage.
- Long-Term Material Durability — Built to resist the heat cycling and vibration loads typical of diesel welder and generator operation, reducing the risk of cracking or seam failure over extended service life.
The reserve tank — sometimes called an overflow or expansion tank — serves as a buffer for the engine cooling system. As coolant heats up during operation, it expands and flows into the reserve tank rather than being lost; when the engine cools down, the system draws that fluid back into the radiator, keeping the cooling circuit full and air-free. A cracked or leaking reserve tank causes the system to gradually lose coolant, leading to overheating, potential engine damage, and unplanned downtime on the jobsite.
Part Details
| Part Number | 0802081403 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Reserve Tank |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
| Welders | DLW400ESA4 |
| Welders | DLW330X2 |
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Welders | DAW500SA4 |
| Welders | DLW500ESA4 |
| 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.
