The Multiquip 1586123870 Crankshaft Metal 0.40MM Set is a genuine OEM undersized bearing metal set designed for DAC7000SS, DAC7000SSW, DAC7000SSA, and DLW300ES series equipment. As a factory-sourced component, it delivers the precise dimensional tolerancing required for a correctly clearanced crankshaft journal fit during engine rebuild. This set is the correct 0.40MM undersize specification for machines that have had their crankshaft journals machined to that service limit. Confirm your engine's journal size before ordering to ensure compatibility with your DAC or DLW series unit.
Key Features
- OEM-Spec Journal Clearance: — Manufactured to exact 0.40MM undersize tolerances, ensuring proper oil film thickness and crankshaft bearing load distribution during engine operation.
- Direct Engine Rebuild Fitment: — Engineered to drop into the main bearing saddles of compatible engines without secondary machining beyond the 0.40MM journal grind specification.
- Broad Series Compatibility: — Fits DAC7000SS, DAC7000SSW, DAC7000SSA ultra-silent generator series and DLW300ES welder series equipment.
- Engine Longevity After Reconditioning: — A correctly fitted crankshaft metal set restores proper oil pressure and prevents excessive bearing wear that would otherwise lead to rapid engine failure post-rebuild.
- Critical Clearance Component: — Using the wrong undersize grade risks insufficient oil clearance or excessive crankshaft play, both of which can cause immediate bearing failure under load.
Crankshaft bearing metals — also called main bearing shells — sit between the crankshaft journals and the engine block saddles, supporting the rotating crankshaft under load while allowing a thin film of pressurized oil to prevent metal-to-metal contact. When an engine is reconditioned and the crankshaft journals are reground to the 0.40MM undersize specification, standard bearing metals will no longer provide the correct clearance, making an undersize set like this one essential. Running an engine with incorrect bearing clearance causes oil pressure loss, accelerated wear, and in severe cases catastrophic crankshaft failure.
Part Details
| Part Number | 1586123870 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Crankshaft Metal 0.40MM Set |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DAC7000SS |
| Diesel Powered Generators | DAC7000SSW |
| Diesel Powered Generators | DAC7000SSA |
| 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.
