Multiquip 492581 1/4" Nylon Nut

The Multiquip 492581 is a genuine OEM 1/4" Nylon Nut designed for a wide range of Multiquip equipment including WM45, LS300, AR13, WBH, V305, WTB, C30, LS400, LS500, LS600, and PRO12 series machines. As a direct OEM replacement, this nut is sourced to the same specification as the original hardware used during factory assembly, ensuring correct fit across every compatible model. Verified against Multiquip's parts catalog, the 492581 is a straightforward service item that keeps critical assemblies properly secured with no guesswork on sizing or thread spec. DHS Equipment stocks genuine Multiquip OEM parts so you can get what you need and get back to work.

Key Features

• OEM-Spec Nylon Insert: The nylon locking insert is formed to the same torque-retention spec as the original, maintaining clamp load under vibration and repeated thermal cycling.
• Correct 1/4" Thread Sizing: Threaded to exact 1/4" dimensions for direct installation — no chasing threads or fitting adjustments needed.
• Broad Multiquip Fitment: Compatible with WM45, LS300, LS400, LS500, LS600, AR13, AR14, WBH, WTB, V305, C30, PRO12, EM12M, WM120, EM120, EM900, and R2000H series equipment.
• Vibration-Resistant Locking Design: The nylon collar resists self-loosening on equipment subject to continuous vibration, helping fastened components stay torqued through demanding operating cycles.
• Genuine Multiquip OEM Part: Supplied as an authentic Multiquip replacement, carrying part number 492581 for confident cross-referencing against your machine's parts manual.

A nylon insert lock nut — commonly called a nyloc nut — uses an integrated nylon collar to grip the mating bolt thread and resist loosening caused by vibration, shock loads, or cyclic movement. Unlike standard hex nuts that can back off over time on high-vibration equipment, the nylon insert creates friction against the thread even when the joint is not under full load. On heavy construction equipment such as mixers, pumps, rollers, and power buggies, fastener retention is critical; a nut that works loose can allow components to shift, create unsafe play in assemblies, or lead to accelerated wear on surrounding hardware. Replacing worn or missing nyloc nuts with the correct OEM-spec item restores the designed level of fastener security to the 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.