The Multiquip D4491400004 Rubber Seal is a genuine OEM component designed for DLW300ES, DLW300ESA, and DLW300ESA1 series diesel light welders. As a direct OEM replacement, this seal is produced to the same specification as the original part, ensuring a correct fit without rework or modification. Sourced directly through authorized Multiquip supply channels, the D4491400004 is the right call when you need a verified, ready-to-install replacement for your DLW300 series welder.
Key Features
- OEM Material Grade — Manufactured to the original rubber compound specification, maintaining the compression and sealing performance required for a diesel welder environment.
- Direct-Fit Replacement — Matches the original profile and seating dimensions for the DLW300ES, DLW300ESA, and DLW300ESA1, dropping in exactly where the worn seal came out.
- Verified Fitment — Confirmed for DLW300ES, DLW300ESA, and DLW300ESA1 diesel light welder models, so you can order with confidence.
- Leak and Contamination Prevention — A properly functioning rubber seal keeps fluids contained and contaminants out; a degraded seal can lead to leaks, premature wear on adjacent components, and unplanned service intervals.
- Genuine OEM Assurance — Supplied as an authentic Multiquip part, backed by the brand's quality standards for professional-grade welding equipment.
A rubber seal serves as a barrier between mating surfaces or around moving components, preventing fluid leakage and blocking the ingress of dirt, moisture, and debris into sensitive areas of the machine. On a diesel light welder like the DLW300 series, maintaining seal integrity is critical to protecting internal components and sustaining consistent output during operation. When a seal deteriorates — through heat cycling, compression set, or chemical exposure — it loses its ability to form a reliable barrier, which can result in fluid loss, contamination damage, or accelerated wear on surrounding parts.
Part Details
| Part Number | D4491400004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Rubber Seal |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
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.
