Multiquip 0040016000 Lock Washer

The Multiquip 0040016000 is a genuine OEM Lock Washer designed for the extensive DCA and NGA series of Multiquip diesel-powered generators, including ultra-silent and super-silent models such as the DCA70SSIU, DCA125SSJU, DCA220SSJU, DCA300SSJU, DCA400SSI, and NGA150SSPUPL, among many others. As a direct OEM replacement sourced through Multiquip's authorized parts network, this Lock Washer is manufactured to the exact specifications required by your equipment. Confirm your model code against the fitment list to ensure this is the correct part before ordering. DHS Equipment stocks genuine Multiquip parts to keep your generator operating as it was designed.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact material and dimensional specifications, ensuring the correct clamping force and thread retention for generator fastener applications.
• Direct Drop-In Replacement — Matches the original hardware profile for straightforward installation with no rework or modification to mating fasteners or mounting surfaces.
• Broad DCA and NGA Series Fitment — Compatible across a wide range of Multiquip ultra-silent and super-silent generator models including DCA45, DCA70, DCA125, DCA150, DCA220, DCA300, DCA400, DCA600, DCA800, DCA1100, and NGA series units.
• Prevents Fastener Loosening Under Vibration — A properly functioning lock washer maintains bolt and nut torque in high-vibration generator environments, preventing dangerous fastener back-out during extended operation.
• Correct Hardware for Authorized Service — Using genuine OEM hardware during maintenance or repair ensures the assembly meets the original design intent and performs as expected under load.

A lock washer is a hardened fastening component placed beneath a nut or bolt head to resist rotational loosening caused by vibration and dynamic loads. In diesel generators like the DCA and NGA series, where continuous mechanical vibration is an inherent part of operation, lock washers play a critical role in keeping structural, electrical, and mechanical assemblies securely fastened. When a lock washer is missing, damaged, or substituted with an incorrect size, fasteners can back out over time, leading to loose connections, component misalignment, or more serious mechanical failures. Replacing worn or missing lock washers with the correct OEM part during routine service is a straightforward step that protects the integrity of the entire assembly.

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.