The Multiquip EM18801 is a genuine OEM O-Ring designed for Mayco concrete pump models including C30HD, C30HDGA, C30HDG, C30HDN, C30HDNI, C30HDNI Zenith, C30HDNI Precision, and C30HDZ. As a factory-original component, the EM18801 is manufactured to exact material and dimensional specifications, ensuring a proper seal wherever it is installed in the pump assembly. Verify your model code against the fitment list above to confirm compatibility before ordering.
Key Features
- Genuine OEM Sealing Material — Factory-original compound and durometer rating matched to the demands of concrete pump fluid pressures and operating temperatures.
- Drop-In Installation — Sized to seat correctly in the original groove without stretching, pinching, or trimming, keeping installation straightforward during routine service.
- Broad C30HD Series Fitment — Confirmed for C30HD, C30HDGA, C30HDG, C30HDN, C30HDNI, C30HDNI Zenith, C30HDNI Precision, and C30HDZ Mayco concrete pumps.
- Leak Prevention Under Pressure — A properly seated O-Ring maintains the fluid boundary inside the pump, preventing pressure loss and material bypass that can reduce output and contaminate surrounding components.
- Fluid Compatibility — Material selected to resist degradation from hydraulic fluid, water, and concrete slurry exposure typical in cycloidal-driven concrete pump service environments.
An O-Ring creates a compressed seal between mating surfaces inside the pump, preventing pressurized fluid or material from bypassing into adjacent cavities or escaping externally. In a concrete pump, a failed or hardened O-Ring allows fluid to weep past the seal point, causing pressure drop, erratic output, and potential contamination of hydraulic or mechanical systems. Replacing a worn O-Ring at the first sign of seepage is one of the lowest-cost, highest-impact maintenance tasks on any concrete pump.
For fitment questions or help locating additional parts for your Mayco C30 series concrete pump, contact the DHS Equipment parts team directly.
Part Details
| Part Number | EM18801 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDGA |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Zenith |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HD |
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.
