The Multiquip B3491400004 Rubber Seal is a genuine OEM component designed for DLW400ES, DLW400ESA, and DLW400ESA1 diesel light welder/generator units. As a factory-sourced part, B3491400004 matches the original material grade, compression profile, and dimensional tolerances specified for these machines. This seal is a direct replacement for the original component and is confirmed to fit DLW400ES-series equipment without modification. Keeping a correct-fitting rubber seal in place is essential to maintaining enclosure integrity and protecting internal components from moisture, dust, and debris ingress.
Key Features
- Genuine OEM Material Grade — Manufactured to the same rubber compound and compression specification as the original, ensuring a consistent seal under field conditions.
- Direct-Fit Replacement — Matches the original profile and mounting configuration of the DLW400ES-series enclosure, dropping in where the factory seal was seated.
- Confirmed Fitment — Verified for DLW400ES, DLW400ESA, and DLW400ESA1 diesel light welder/generator models.
- Enclosure Protection — A properly seated seal prevents moisture, dust, and fine debris from reaching sensitive electrical and mechanical components inside the unit.
- Electrical Safety Relevance — On welder/generator equipment, compromised enclosure seals can allow moisture contact with live electrical components; replacing a worn seal promptly supports safe, compliant operation.
A rubber seal on a diesel light welder/generator serves as the barrier between the unit's internal components and the external environment. It compresses against mating enclosure panels or doors to block water, dust, and contaminants from entering areas housing electrical connections, engine components, or fuel systems. When a seal hardens, cracks, or deforms with age, it loses its ability to compress evenly, allowing gaps to form that expose internal components to the elements — increasing the risk of corrosion, electrical faults, and accelerated wear on nearby parts.
For help confirming this part fits your specific unit, contact the DHS Equipment team with your model and serial number before ordering.
Part Details
| Part Number | B3491400004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Rubber Seal |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
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.
