The Multiquip EM801789 O-Ring is a genuine OEM sealing component designed for LS300P, LS300G, and LS300GK hydraulic-driven concrete pumps. As a direct OEM replacement, this O-Ring meets the original engineering specifications required for proper sealing performance in demanding concrete pump applications. Fitment is confirmed for the LS300 series, and using the correct part number ensures you receive the right seal geometry for your machine. DHS Equipment stocks this part to keep your Multiquip concrete pump operating as intended.
Key Features
- OEM-Grade Seal Material — Manufactured to the original compound and dimensional specifications that control compression set and fluid compatibility in hydraulic concrete pump systems.
- Drop-In Sealing Fit — Engineered to seat correctly in the original groove profile of the LS300 series pump without reworking or resizing the mating surfaces.
- LS300 Series Compatibility — Verified fitment for LS300P, LS300G, and LS300GK hydraulic-driven concrete pumps.
- Leak Prevention Where It Counts — A correctly seated O-Ring maintains hydraulic pressure integrity; a worn or extruded seal can cause fluid bypass, pressure loss, and pump output degradation.
- Genuine Multiquip OEM Part — Sourced directly from Multiquip, so the part number, geometry, and material grade match the original component exactly.
An O-Ring is a precision-molded elastomeric seal used to prevent fluid or pressure from escaping between two mating surfaces or components. In a hydraulic-driven concrete pump like the LS300 series, O-Rings are critical to maintaining sealed hydraulic circuits and fluid passages that control pump output and valve operation. When an O-Ring degrades, cracks, or loses its compression, it can allow fluid to bypass the seal, resulting in pressure loss, external leaks, and reduced pumping consistency that affects pour quality and output volume.
Part Details
| Part Number | EM801789 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300P |
| Mayco Pumps | LS300G |
| Mayco Pumps | LS300GK |
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.
