The Multiquip 520343 is a genuine OEM O-Ring designed for a wide range of Multiquip equipment including LS600P, LS300P, LS300G, LS300GK concrete pumps, the AR14H roller, and WBH and WTB series power buggies. As a factory-sourced component, this O-Ring meets the original material and dimensional specifications set by Multiquip, ensuring a proper seal every time. Verified fitment covers models including WBH21EPA, WBH-16EAWD, WBH-16EAWDF, WBH-21EFP, WBH-21EF, WBH-16, WBH-16E, WBH-16EF, WBH-16EF, WBH-16F, WTB-16, and WTB-16PD. Sourcing the correct OEM part number 520343 is the straightforward way to restore a leak-free seal and return your equipment to full operation.
Key Features
- OEM Material Specification — Manufactured to Multiquip's original compound and durometer rating, delivering the compression and chemical resistance this sealing application demands.
- Drop-In Sealing Fit — Matches the exact groove dimensions of the original O-Ring seat, allowing straightforward installation without reworking mating surfaces.
- Broad Cross-Equipment Compatibility — A single part number that covers concrete pumps (LS600P, LS300P, LS300G, LS300GK), the AR14H roller, and multiple WBH and WTB power buggy configurations.
- Leak Prevention Where It Counts — A properly seated O-Ring maintains fluid or air pressure at critical joints; a worn or extruded ring leads to leaks, pressure loss, and accelerated component wear.
- Fuel and Fluid System Safe — The OEM compound is selected to resist degradation from hydraulic fluid, fuel, and other media commonly present in Multiquip pump and buggy systems.
An O-Ring is a circular elastomeric seal fitted into a machined groove between two mating surfaces or around a shaft, creating a pressure-tight barrier that prevents fluid, fuel, or air from escaping the assembly. In equipment like concrete pumps and power buggies, O-Rings appear throughout hydraulic circuits, fuel connections, and fluid ports where maintaining containment is essential to safe and efficient operation. When an O-Ring ages, hardens, or becomes pinched, it loses its ability to conform to the sealing surfaces, allowing leaks that can compromise hydraulic pressure, contaminate surrounding components, or create a fire or slip hazard on the worksite.
Questions about fitment or availability? Contact the DHS Equipment team for expert parts support.
Part Details
| Part Number | 520343 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS600P |
| Rollers | AR14H |
| Power Buggies | WBH21EPA |
| Mayco Pumps | LS300P |
| Power Buggies | WBH-16EAWD |
| Power Buggies | WBH-16EAWDF |
| Power Buggies | WBH-21EFP |
| Power Buggies | WTB-16 |
| Mayco Pumps | LS300G |
| Power Buggies | WTB-16PD |
| Mayco Pumps | LS300GK |
| Power Buggies | WBH-16 |
| Power Buggies | WBH-16E |
| Power Buggies | WBH-16EF |
| Power Buggies | WBH-16F |
| Power Buggies | WBH-21EF |
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.
