The Multiquip D4425200804 Radiator Cap Cover is a genuine OEM component designed for DLW300ES, DLW400ES, DLW330X2, and DLW400ESA4 series diesel light welder units. As a direct Multiquip OEM part, D4425200804 is manufactured to the exact specifications of the original, ensuring a correct fit with no guesswork on installation. This part is sourced directly through authorized Multiquip distribution channels, so you can be confident you are receiving an authentic replacement. If your machine matches the DLW welder series listed, this is the correct Radiator Cap Cover for your unit.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional specifications, ensuring the cap cover seals and seats correctly against the radiator assembly.
- Direct Drop-In Replacement — Engineered to align with the existing radiator cap mounting point on DLW-series units, allowing straightforward installation without modification.
- Confirmed Fitment — Compatible with DLW300ES, DLW400ES, DLW330X2, and DLW400ESA4 Multiquip diesel light welder models.
- Cooling System Integrity — A properly seated radiator cap cover helps maintain the correct pressure boundary at the coolant reservoir, supporting stable operating temperatures during extended welding runs.
- Authentic Part Number Assurance — Ordering by part number D4425200804 through DHS Equipment ensures you receive the correct Multiquip OEM component, not a generic substitute.
The radiator cap cover sits over the radiator cap on the cooling system and serves as a protective and sealing component that helps maintain the integrity of the coolant circuit. On diesel light welders like the DLW series, consistent cooling is critical — these machines run under sustained electrical load, and any compromise to the cooling system can lead to overheating and unplanned downtime. A damaged or missing radiator cap cover can expose the cap itself to debris and physical damage, potentially allowing pressure loss in the coolant system and reducing the effectiveness of the entire cooling circuit.
For questions about fitment or to confirm this is the right part for your specific unit, contact the DHS Equipment parts team directly.
Part Details
| Part Number | D4425200804 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radiator Cap Cover |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
| Welders | DLW330X2 |
| 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.
