The Multiquip 1587 Oil Seal is a genuine OEM component designed for DLW and DAC series diesel welders and generators, including the DLW400ES, DLW300ES, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH. As a factory-authorized part, the 1587 meets the original design specifications for a drop-in replacement with no guesswork on fit or compatibility. Sourced directly through Multiquip's OEM supply chain, this seal is the same part installed at the factory — giving you confidence that the repair is done right the first time.
Key Features
- Genuine OEM Sealing Material — Manufactured to the same compound and dimensional tolerances as the original, ensuring consistent compression and oil retention specific to these engine and alternator configurations.
- Exact-Fit Installation — Engineered to seat directly into the original housing bore on covered DLW and DAC series units, matching the original seal profile without rework.
- Broad Welder and Generator Fitment — Confirmed compatible with DLW400ES, DLW300ES, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, and DA7000SSA2GH models.
- Prevents Oil Loss at Critical Interfaces — A properly seated oil seal keeps lubricant contained at rotating shaft exits, preventing oil contamination of surrounding components and maintaining proper lubrication levels during operation.
- Fuel and Oil System Integrity — Maintaining an intact oil seal is essential on diesel-powered equipment; a failed seal can allow oil to migrate into areas that affect combustion quality and overall engine health.
An oil seal closes the gap between a rotating shaft and its surrounding housing, preventing engine or gear oil from escaping while keeping contaminants from entering the lubrication system. On diesel welders and generators like the DLW and DAC series, these seals are subject to continuous rotational stress and heat, causing them to harden or crack over time. A worn or failed oil seal will typically present as external oil weeping around the shaft, and if left unaddressed, can lead to oil starvation and accelerated wear of internal engine components.
Part Details
| Part Number | 1587 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Seal |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| 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.
