The Multiquip D4111100103 Fan is a genuine OEM replacement built for DLW300ES, DLW400ES, DLW330X2, and DLW400ESA4 series diesel light welder/generators. Sourced directly from Multiquip, this part meets the original design specifications for the cooling system on these machines. It is a direct-fit replacement for units within the DLW300 and DLW400 families, including ESA and ESA1 variants. Keeping this component in proper working order is essential to maintaining safe operating temperatures during extended welding and power generation use.
Key Features
- Genuine OEM Cooling Performance — Manufactured to original airflow and blade geometry specs, ensuring the cooling system operates as designed in DLW-series welder/generators.
- Direct-Fit Replacement — Engineered to drop into the existing fan mounting position without modification, using the original hardware and mounting configuration.
- Broad DLW Series Compatibility — Confirmed fitment across DLW300ES, DLW400ES, DLW330X2, and DLW400ESA4 models, covering a wide range of Multiquip diesel light welder/generator variants.
- Thermal Protection for Engine and Alternator — A properly functioning fan maintains airflow across the engine and alternator housing; a worn or failed fan can lead to overheating and unplanned shutdowns during critical welding or generator operations.
- Electrical Safety Compliance — On welder/generator units, adequate cooling directly supports safe electrical output; replacing a degraded fan restores the thermal margin required for continuous-duty operation.
The fan in a diesel light welder/generator draws or directs airflow across the engine and electrical components to dissipate heat generated during operation. Without sufficient cooling, internal temperatures rise beyond safe limits, which can cause engine stress, reduce alternator output quality, and trigger protective shutdowns. A worn, cracked, or imbalanced fan blade reduces airflow efficiency and can introduce vibration that accelerates wear on surrounding components, making timely replacement important for both performance and service life.
Part Details
| Part Number | D4111100103 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fan |
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.
