Multiquip EM1013 Flat Washer 3/8

The Multiquip EM1013 is a genuine OEM Flat Washer 3/8 designed for a wide range of Multiquip and Whiteman equipment including STX, HTX, HTN, JWN, HHN, and J Series power trowels, as well as select rollers, screeds, saws, mixers, pumps, generators, and water trailers. As a direct OEM replacement, EM1013 meets the original design tolerances and material specifications required across the many assemblies this washer serves. Verify your model number before ordering — with fitment spanning dozens of machines, confirming your unit is listed ensures a correct, hassle-free installation.

Key Features

• Genuine OEM Material Spec — Manufactured to the same steel grade and dimensional tolerances as the original, ensuring consistent load distribution and clamping force across fastened assemblies.
• 3/8 Bore, Drop-In Fit — Sized to seat directly onto 3/8-inch fasteners with no reworking of the mating hardware required.
• Broad Cross-Machine Fitment — Confirmed for STX, HTX, HTN, HHN, JWN, J Series, and B Series trowels, WRS roller screeds, select Multiquip saws, mixers, pumps, rollers, generators, and water trailers.
• Prevents Fastener Pull-Through and Surface Damage — Properly distributes clamping load over a wider bearing surface, protecting housings, frames, and panels from the stress concentration a bare bolt head or nut creates.
• Stocked OEM Part Number — EM1013 is the active Multiquip part number, making reordering straightforward for fleet maintenance and service records.

A flat washer serves a simple but critical role in any bolted assembly: it spreads the clamping force of a fastener over a larger surface area, protecting the material beneath and keeping the connection secure under vibration and load. On concrete finishing and compaction equipment — where engines, rotating blades, and drive components generate constant vibration — washers that are undersized, worn, or the wrong material can allow fasteners to loosen, surfaces to deform, or assemblies to work themselves apart over time. Replacing a worn or missing washer with the correct OEM-specification piece like the Multiquip EM1013 restores the fastener joint to its designed clamping performance and helps keep critical components properly secured through demanding work cycles.

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.