The Multiquip 508344 is a genuine OEM Flat Washer 5/16 designed for a wide range of Multiquip and Whiteman equipment, including AR13H and AR14H asphalt rollers, WBH-16 and WBH-21 power buggies, WM63 mortar mixers, and PRO12 and PRO20 Essick stationary mixers. As a factory-sourced component, it is manufactured to the exact dimensional and material standards used in original production, ensuring a correct fit every time. DHS Equipment supplies this part direct, so you can verify part number 508344 against your equipment's parts manual and order with confidence.
Key Features
- Genuine OEM Material Consistency — Produced to the same steel grade and thickness specification as the original hardware, maintaining correct load distribution across fastened joints.
- Drop-In Hardware Fit — Matched to 5/16 fastener sizing used across multiple Multiquip assembly points, so it seats flush without shimming or modification.
- Broad Cross-Model Compatibility — Fits AR13H, AR13HA/HAR, AR13HC, and AR14H rollers; WBH-16, WBH-16E, WBH-16EF, WBH-16EAWD, WBH-16EAWDF, and WBH-21EF power buggies; WM63H5, WM63H8, WM63E, and WM63SLF mixers; and PRO12 and PRO20 series Essick mixers.
- Structural Load Support — Distributes clamping force evenly under bolt and nut heads, protecting mating surfaces from damage and maintaining joint integrity under vibration and load cycles common to compaction and mixing equipment.
- Direct OEM Source — Sourced as a genuine Multiquip part, ensuring the washer meets the same hardness and dimensional tolerances as the hardware it replaces in the original assembly.
A flat washer serves a straightforward but essential role in any bolted assembly — it spreads the load of a fastener over a wider surface area, preventing the bolt head or nut from pulling through or damaging softer materials. On equipment that operates under continuous vibration, such as rollers, power buggies, and drum mixers, washers also help resist loosening by maintaining consistent clamping pressure across the joint. When a washer is worn, deformed, or missing, fasteners can work loose over time, leading to play in critical assemblies and accelerated wear on surrounding components.
Questions about fitment for part number 508344? Contact the DHS Equipment parts team for assistance before ordering.
Part Details
| Part Number | 508344 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Washer 5/16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HA/HAR |
| Rollers | AR13H |
| Power Buggies | WBH-16EAWDF |
| Power Buggies | WBH-16EAWD |
| Power Buggies | WBH-21EF |
| Power Buggies | WBH-16F |
| Power Buggies | WBH-16EF |
| Power Buggies | WBH-16E |
| Power Buggies | WBH-16 |
| Whiteman Mixers | WM63SLF |
| Essick Mixers | PRO20 |
| Whiteman Mixers | WM63H8 |
| Whiteman Mixers | WM63H5 |
| Whiteman Mixers | WM63E |
| Rollers | AR14H |
| Essick Mixers | PRO12E53 |
| Essick Mixers | PRO12E51 |
| Essick Mixers | PRO12 |
| Rollers | AR13HC |
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.
