The Multiquip 1586123920 is a genuine OEM Crankshaft Metal 0.40MM designed for the DAC7000SS, DAC7000SSW, and DAC7000SSA ultra-silent diesel generators, as well as the DLW300ES series diesel light welders. As an authorized Multiquip OEM part, it is manufactured to the exact tolerances required for correct crankshaft bearing clearance and reliable engine operation. Sourcing a genuine OEM bearing metal ensures the proper 0.40MM undersize specification is matched to your reconditioned or re-ground crankshaft journal. Verify your model and crankshaft condition before ordering to confirm this undersize grade is appropriate for your engine.
Key Features
- OEM Undersize Specification: — Manufactured to the exact 0.40MM undersize dimension, ensuring correct oil film clearance on a re-ground crankshaft journal for proper load distribution and engine longevity.
- Direct Engine Rebuild Fit: — Engineered as a drop-in replacement during crankshaft reconditioning, aligning precisely with the bearing saddle and journal geometry of compatible engines.
- Confirmed Fitment: — Verified for DAC7000SS, DAC7000SSW, and DAC7000SSA ultra-silent generators and DLW300ES series diesel light welders.
- Protects Engine Integrity: — A correctly sized bearing metal maintains the oil wedge that prevents metal-to-metal contact between the crankshaft and connecting rod, directly protecting against catastrophic engine failure.
- Engine Safety Compliance: — Using the correct undersize grade during an engine overhaul is critical to maintaining safe operating pressures and preventing premature bearing seizure in high-load generator and welder applications.
A crankshaft bearing metal, also known as a main or rod bearing shell, sits between the crankshaft journal and the bearing housing to provide a precision-controlled running surface lubricated by engine oil. The 0.40MM designation indicates this is an undersize bearing intended for use after the crankshaft journal has been machined down by that amount to restore a smooth, round surface. When bearing metals wear or the journal is damaged, oil pressure drops and the crankshaft loses its protective oil film — leading to knocking, overheating, and eventual engine seizure if not addressed during a proper overhaul.
Part Details
| Part Number | 1586123920 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Crankshaft Metal 0.40MM |
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.
