The Multiquip EM621 Flat Washer 1/2 is a genuine OEM flat washer designed for Whiteman hydraulic power buggy and Multiquip roller series equipment, including WBH-16, AR13, RW1404, RW1504, RW1810, RW3010, and R2000H models. As a direct OEM replacement, the EM621 is manufactured to the exact dimensions and material grade specified for these machines, ensuring correct load distribution and secure fastener seating right out of the package. DHS Equipment stocks this part to keep your equipment running on schedule. Verify your model against the fitment list before ordering to confirm compatibility.
Key Features
- OEM-Grade Material and Tolerance — Manufactured to the exact thickness, inner diameter, and outer diameter specified for these Multiquip applications, preventing fastener pull-through and surface damage under load.
- Drop-In Hardware Replacement — Sized for 1/2 in. fastener applications across compatible buggy and roller assemblies, fitting existing hardware without adjustment or rework.
- Broad Model Coverage — Confirmed fitment across WBH-16 series Whiteman hydraulic power buggies, AR13 asphalt rollers, RAMMAX RW and P33/24 series rollers, R2000H static roller, and related models.
- Correct Load Distribution — A properly sized flat washer spreads clamping force evenly across the mating surface, protecting housings, brackets, and flanges from deformation caused by an undersized or worn washer.
- Genuine OEM Part — Sourced directly from Multiquip, the EM621 carries the manufacturer's part number verification, so you are ordering the exact component specified in the machine's service documentation.
A flat washer sits between a fastener head or nut and the surface it clamps against, spreading the load over a wider area to prevent the fastener from pulling through or damaging softer materials. On power buggies and compaction rollers, washers are used throughout the frame, drivetrain, and accessory mounting points where vibration and cyclic loading can cause hardware to work loose over time. Using a washer of the correct size and material grade is essential to maintaining proper clamp load — an incorrect washer that is too thin, too soft, or the wrong diameter will deform under torque and allow fastener loosening, which can lead to component movement or structural damage during operation.
Part Details
| Part Number | EM621 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Washer 1/2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Buggies | WBH-16 |
| Power Buggies | WBH-16E |
| Power Buggies | WBH-16EAWD |
| Power Buggies | WBH-16EAWDF |
| Power Buggies | WBH-16EF |
| Power Buggies | WBH21EPA |
| Rollers | AR13D |
| Rollers | AR13H |
| Rollers | AR13HA/HAR |
| Rollers | AR13HC |
| Rollers | P33/24 FR/FC/FCR |
| Rollers | P33/24 HHMR-BD w/Blade |
| Rollers | R2000H |
| Rollers | RW1403HF |
| Rollers | RW1404 |
| Rollers | RW1404MR |
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1504HF up to S/N 1534188 |
| Rollers | RW1810 |
| Rollers | RW3010 |
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.
