Multiquip 0042616000 Lock Washer

The Multiquip 0042616000 Lock Washer is a genuine OEM component designed for the DCA Ultra-Silent generator series, including DCA180, DCA220, DCA250, DCA300, and DCA400 series units. As a certified OEM part, it is manufactured to the exact tolerances required for proper clamping force and vibration resistance across this broad range of diesel-powered and super-silent generators. This part fits an extensive list of DCA configurations — from standard diesel models to Tier 4 and special-deployment variants — making it a critical stock item for service technicians and fleet operators alike. Verify your model code against the fitment list to confirm compatibility before ordering.

Key Features

• Genuine OEM Clamping Integrity — Manufactured to exact hardness and dimensional tolerances required to maintain proper bolt tension in generator assembly applications, where loosening under load or vibration can cause equipment faults.
• Direct-Fit Installation — Engineered to the same inner diameter, outer diameter, and thickness as the original fastener hardware, so it seats and locks correctly without shimming or modification.
• Broad DCA Series Coverage — Compatible with DCA180, DCA220, DCA250, DCA300, and DCA400 series Ultra-Silent and diesel-powered generators across standard, Tier 4, and special-variant configurations.
• Vibration Resistance — Lock washers in generator applications are subjected to constant engine-driven vibration; correct spring tension and bite profile prevent fastener back-off during extended run cycles.
• Electrical and Structural Safety Relevance — In generator assemblies, loose fasteners caused by inadequate locking hardware can compromise grounding connections and structural panel integrity — using the correct OEM washer matters beyond basic mechanical function.

A lock washer is a thin, hardened fastener component placed beneath a nut or bolt head to resist loosening caused by vibration, rotation, or dynamic loading. In diesel generator assemblies like the DCA series, engines and alternators produce continuous vibration during operation that can gradually back off standard fasteners — the lock washer's split or toothed profile bites into both the mating surface and the fastener, maintaining clamping force over time. A worn, flattened, or missing lock washer allows fasteners to loosen, which can lead to structural rattles, misaligned components, or — in electrical applications — degraded grounding and connection integrity.

Part Details

Compatibility & Fitment

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.