The Multiquip 1586122980 Crankpin Metal 0.40MM Set is a genuine OEM undersized bearing set designed for DLW300ES and DAC7000SS series equipment, including the DAC7000SSA, DAC7000SSW, and DAC7000SS. As a direct Multiquip OEM component, this set is manufactured to the exact material and dimensional specifications required for engine overhaul work on these machines. The 0.40MM undersize designation makes it the correct choice when crankpin journals have been machined to that specific undersize during reconditioning. Confirm your journal size before ordering to ensure a proper fit.
Key Features
- OEM-Grade Bearing Material — Produced to Multiquip's original metallurgical specifications, delivering the correct hardness, crush, and oil film retention for crankpin bearing applications in these engines.
- Precision Undersized at 0.40MM — Engineered specifically for crankpin journals that have been ground 0.40MM under standard diameter, ensuring correct bearing crush and oil clearance after machining.
- Correct Fit for DLW and DAC Series — Verified for the DLW300ES, DAC7000SSA, DAC7000SSW, and DAC7000SS, covering both the diesel light welder and diesel alternator generator lines in this family.
- Engine Overhaul Confidence — Using the correct undersize bearing set maintains proper crankshaft clearances, protecting against premature wear, oil pressure loss, and engine knock during operation.
- Sold as a Complete Set — Includes the full crankpin bearing set needed for the rebuild, so you have matching components across all journal positions without sourcing individual pieces separately.
Crankpin bearings sit between the connecting rod and the crankshaft journal, creating the precision oil film that allows the rod to pivot smoothly as the piston cycles. When these bearings wear or are damaged, oil clearances increase, leading to reduced oil pressure, audible knocking, and accelerated wear across the bottom end of the engine. During an engine overhaul, if the crankpin journals are reground to remove scoring or out-of-round wear, undersized bearings like this 0.40MM set are required to restore the correct running clearance — standard-size bearings will not seat properly on a machined journal.
Part Details
| Part Number | 1586122980 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Crankpin Metal 0.40MM Set |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Diesel Powered Generators | DAC7000SSA |
| Diesel Powered Generators | DAC7000SSW |
| Diesel Powered Generators | DAC7000SS |
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.
