The Multiquip EM511159 Flat Washer 1" is a genuine OEM flat washer designed for a wide range of Multiquip and Essick equipment, including the EM12M series mixers, MC94P/S, MC12PH, AR13D, AR14H rollers, and WBH series power buggies. As a direct OEM replacement, EM511159 meets the original dimensional and material specifications used on the production line. This washer fits across multiple equipment families, making it a versatile stocking item for fleets running mixed Multiquip equipment. Order with confidence knowing this is the exact part called out in Multiquip's service documentation.
Key Features
- Genuine OEM Material Grade — Manufactured to the same hardness and surface finish spec as the original, ensuring proper load distribution without deforming under fastener torque.
- Correct 1" Bore Sizing — Sized to seat flush against mating hardware with no shimming or stacking required, giving a clean, stable bearing surface every time.
- Broad Multiquip Fitment — Compatible across EM12M, EM120, MC94P/S, MC12PH, AR13D, AR14H, WBH16, WBH21 series, and more — one part number covers multiple machines.
- Load Distribution Where It Counts — Spreads clamping force evenly across the joint surface, preventing fastener pull-through on frame, drive, and structural connection points.
- Keeps Assemblies Torqued Correctly — A worn or undersized washer allows fasteners to back out under vibration; using the correct OEM washer maintains joint integrity across demanding operating cycles.
A flat washer sits between a fastener — bolt head or nut — and the surface it clamps against, spreading the load over a wider area so the fastener stays tight without damaging the material beneath it. On equipment that runs under continuous vibration, such as mixers, rollers, and power buggies, washers play a critical role in keeping structural and drivetrain fasteners securely seated. When a washer is undersized, deformed, or missing entirely, fasteners can work loose or pull through, leading to misalignment, premature wear on surrounding components, and unplanned repairs.
Part Details
| Part Number | EM511159 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Washer 1" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Essick Mixers | EM12M Series |
| Essick Mixers | EM120 |
| MQ Mixers | MC94P/S |
| Rollers | AR13D |
| Power Buggies | WBH21EPA |
| Rollers | AR14H |
| Power Buggies | WBH-21EF |
| Power Buggies | WBH-21EFP |
| Power Buggies | WBH-16EF |
| Power Buggies | WBH-16F |
| Power Buggies | WBH-16E |
| Power Buggies | WBH-16 |
| MQ Mixers | MC12PH |
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.
