The Multiquip 030220510 Lock Washer is a genuine OEM component designed for DCA Ultra-Silent and Super-Silent generator series, including DCA70, DCA125, DCA150, DCA180, DCA220, DCA250, DCA300, DCA400, DCA600, and DCA1100 model families. As a factory-sourced part, the part meets the exact material and dimensional specifications Multiquip engineers to these generator platforms. This lock washer is also confirmed to fit select NGA Super-Silent generator models and the MVB150H plate compactor. Order with confidence knowing fitment has been verified against Multiquip's official parts data.
Key Features
- Genuine OEM Material Spec — Sourced directly from Multiquip to deliver the correct hardness grade and locking tension for DCA generator fastener applications.
- Drop-In Installation — Matches the exact bore diameter and outer profile of the original hardware, seating correctly without rework or shimming.
- Broad DCA Series Coverage — Fits DCA70, DCA125, DCA150, DCA180, DCA220, DCA250, DCA300, DCA400, DCA600, and DCA1100 series generators, plus select NGA Super-Silent models.
- Fastener Retention Under Vibration — A correctly tensioned lock washer prevents fastener back-out caused by engine and alternator vibration; a worn or missing washer can lead to loosening of critical hardware during operation.
- Multi-Platform Compatibility — Also confirmed for the MVB150H vibratory block compactor, making it a useful stocking item for fleets running mixed Multiquip equipment.
A lock washer is a small but essential piece of hardware placed under a fastener to resist loosening caused by vibration, thermal cycling, and mechanical load. In generator applications like the DCA series, components are subject to continuous engine vibration and varying operating temperatures — conditions that can cause standard fasteners to gradually back out over time. The lock washer applies spring tension or bite force against the mating surface, maintaining clamping load and keeping critical connections secure. When a lock washer is missing, damaged, or substituted with an incorrect size, fasteners can loosen progressively, potentially leading to component movement, noise, or more significant mechanical issues during operation.
Part Details
| Part Number | 030220510 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA125SSJU4I |
| Diesel Powered Generators | DCA125USI3CAN |
| Diesel Powered Generators | DCA150SSJU4F |
| Diesel Powered Generators | DCA150SSJU4F3 |
| Diesel Powered Generators | DCA180SSJU4F3 |
| Diesel Powered Generators | DCA220SSJU4F |
| Diesel Powered Generators | DCA220SSJU4F3 |
| Diesel Powered Generators | DCA-220SSK |
| Diesel Powered Generators | DCA300SSJU4F2 |
| Diesel Powered Generators | DCA300SSJU4F3 |
| Diesel Powered Generators | DCA400SSI4F3B |
| Diesel Powered Generators | DCA400SSI4F3PD |
| Diesel Powered Generators | DCA70SSIU4F |
| Diesel Powered Generators | DCA70SSJU4F |
| Diesel Powered Generators | DCA125USI |
| Diesel Powered Generators | DCA250SSI |
| Diesel Powered Generators | DCA250SSIU |
| Diesel Powered Generators | DCA600SSK |
| Diesel Powered Generators | CG500V4F |
| Diesel Powered Generators | DCA150SSJU4F2 |
| Diesel Powered Generators | DCA180SSJU4F |
| Diesel Powered Generators | DCA220SSCU |
| Diesel Powered Generators | DCA220SSCU4I |
| Diesel Powered Generators | DCA220SSJU4F2 |
| Diesel Powered Generators | DCA300SSCU2 |
| Diesel Powered Generators | DCA300SSCU4i |
| Diesel Powered Generators | DCA300SSJU4F |
| Diesel Powered Generators | DCA300SSJU4F3PD |
| Diesel Powered Generators | DCA400SSI4F |
| Diesel Powered Generators | DCA400SSI4F3 |
| Diesel Powered Generators | DCA400SSI4F3PB |
| Diesel Powered Generators | DCA600SSV4F3B |
| Diesel Powered Generators | DCA600SSV4F3PB |
| Diesel Powered Generators | NGA100SSPUL |
| Diesel Powered Generators | NGA150SSPUPL |
| Diesel Powered Generators | NGA150SSPUPL2 |
| Diesel Powered Generators | DCA1100SSC |
| Diesel Powered Generators | DCA70SSJU4i |
| Single Directional Plate Compactors | MVB150H |
| Diesel Powered Generators | DCA1100SSC (60HZ) |
| Diesel Powered Generators | DCA125SSJU4i 60Hz |
| Diesel Powered Generators | DCA220SSJU4F2 (60Hz) |
| Diesel Powered Generators | DCA220SSK-GEER |
| Diesel Powered Generators | DCA220SSK-SUNBELT |
| Diesel Powered Generators | DCA300SSJU4F2 60Hz |
| Diesel Powered Generators | DCA300SSJU4F (60Hz) |
| Diesel Powered Generators | DCA400SSI4F3PD (SUNBELT) |
| Diesel Powered Generators | DCA400SSI4F/4F3/4F3PB |
| Diesel Powered Generators | DCA600SSV4F3PB 60 Hz |
| Diesel Powered Generators | DCA70SSIU4F (60Hz) |
| Diesel Powered Generators | DCA125SSJU-GEER |
| Diesel Powered Generators | DCA150SSJU4F3 (60HZ) |
| Diesel Powered Generators | DCA180SSJU4F3 (60HZ) |
| Diesel Powered Generators | DCA180SSJU4F (60HZ) |
| Diesel Powered Generators | DCA220SSJU4F3 60Hz |
| Diesel Powered Generators | DCA220SSJU4F 60Hz |
| Diesel Powered Generators | DCA250SSI-3 |
| Diesel Powered Generators | DCA300SSJU4F3PD 60Hz |
| Diesel Powered Generators | DCA300SSJU4F3 60Hz |
| Diesel Powered Generators | DCA600SSK-GEER |
| Diesel Powered Generators | DCA70SSJU4F 60Hz |
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.
