Multiquip 10031 External Shakeproof Washer 1/4

The Multiquip 10031 is a genuine OEM external shakeproof washer 1/4 designed for a wide range of Multiquip and Whiteman ride-on power trowels and towable light towers, including STX55, HTX44, HTN, HHN, JWN, and LT6K series equipment. As an authorized Multiquip OEM part, 10031 delivers the exact fit and material specification required by the original equipment design. This washer is stocked at DHS Equipment and ships as a direct replacement for the original hardware across all listed models.

Key Features

• Genuine OEM Hardware Spec — Manufactured to the exact material grade and tooth profile specified for Multiquip equipment, ensuring the locking action performs as intended under vibration loads typical of ride-on trowel and light tower operation.
• External Tooth Locking Design — The external shakeproof profile bites into the mating surface on installation, resisting fastener back-off caused by continuous engine and rotor vibration.
• Broad Model Coverage — Fits STX55, HTX44, HTN, HHN, JWN, and LT6K series units, making it a versatile stock item for fleets running multiple Multiquip machine types.
• Correct Fastener System Integrity — Using the properly rated washer maintains the clamping load and torque retention of the fastener assembly, preventing hardware loosening that can lead to component misalignment or damage.
• Direct Hardware Replacement — Part 10031 installs in place of the original washer without rework, fitting standard 1/4-inch fastener positions as used throughout the listed Multiquip platform.

An external shakeproof washer is a hardened fastener component with serrated teeth around its outer edge that bite into the surface of the parts being joined. Its primary role is to resist loosening caused by vibration — a constant factor in rotating equipment like ride-on power trowels and engine-mounted light towers. When this washer is missing, worn, or substituted with an incorrect type, fasteners in high-vibration zones can back off over time, compromising the structural integrity of the assembly and potentially causing accelerated wear or failure of surrounding components. Replacing worn or damaged washers with the correct OEM-specified part is a straightforward step that protects the reliability of the broader fastener joint.

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.