The Multiquip EM509511 Hydraulic Hose is a genuine OEM replacement designed for ST-45HRM and ST-70 series concrete pumps. As a factory-sourced component, EM509511 is manufactured to the same specifications as the original hose, ensuring a direct, trouble-free installation into your existing hydraulic circuit. This part is sold through DHS Equipment as an authorized Multiquip OEM replacement, so you can order with confidence knowing the fitment has been verified against the ST-45HRM and ST-70 models.
Key Features
- Genuine OEM Construction — Built to Multiquip's original pressure ratings and hose dimensions, ensuring the hydraulic circuit operates within its designed flow and pressure parameters.
- Direct-Fit Replacement — Engineered to match the original routing, end fittings, and length of the factory hose for a clean swap with no reworking of adjacent lines.
- Verified Fitment — Compatible with ST-45HRM and ST-70 concrete pump models; part number this part is confirmed against Multiquip's OEM parts documentation.
- Hydraulic Integrity — A sound hose maintains consistent fluid pressure throughout the pump's hydraulic system, keeping output stroke force steady and concrete delivery predictable.
- Leak Prevention — A cracked or deteriorated hydraulic hose causes pressure loss and fluid contamination; replacing with the correct OEM hose restores a sealed, leak-free system.
The hydraulic hose on a concrete pump carries pressurized fluid between the hydraulic power unit and the cylinders that drive the pumping pistons. It is a critical link in the system — any degradation in hose integrity, whether through cracking, abrasion, or fitting failure, results in pressure drop, erratic pump stroke, or hydraulic fluid loss that can halt concrete placement entirely. Replacing a worn hose with the correct OEM part restores full system pressure and protects downstream hydraulic components from contamination.
For fitment questions or ordering assistance, contact the DHS Equipment team to confirm compatibility with your specific ST-45HRM or ST-70 unit before placing your order.
Part Details
| Part Number | EM509511 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hydraulic Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST-45HRM |
| Submersible Pumps | ST-70 |
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.
