The Multiquip EM509517 is a genuine OEM 4000 PSI Main Gauge Hose designed for the LS400, LS500, LS600, LS60TD, LS40D, LS40TD, LS50TD, and LS600P hydraulic-driven Mayco concrete pump series. As a direct OEM part, EM509517 is manufactured to meet the exact pressure tolerances and connection specifications of the original component. This hose is a critical element of the hydraulic pressure monitoring circuit, ensuring operators get accurate gauge readings under full working load. Sourcing a genuine Multiquip replacement guarantees the hose meets the system's 4000 PSI rated pressure ceiling without risk of mismatch.
Key Features
- Pressure-Rated OEM Construction — Built and certified to a 4000 PSI operating pressure rating, matching the hydraulic system demands of Mayco LS-series concrete pumps exactly.
- Direct-Connect Replacement — Engineered to the original routing length and end-fitting configuration, allowing straightforward installation without cutting, re-flaring, or adapting fittings.
- Broad LS-Series Fitment — Confirmed compatible with LS400, LS500, LS600, LS60TD, LS40D, LS40TD, LS50TD, and LS600P concrete pump models.
- Accurate Pressure Monitoring — A compromised or leaking gauge hose causes erratic or false pressure readings; this OEM replacement restores the clear, stable readings operators rely on to manage pump output safely.
- Hydraulic System Integrity — Using a pressure-matched hose prevents gauge port leaks that can mask real system pressure changes, protecting both the pump and the crew operating it.
The 4000 PSI Main Gauge Hose connects the hydraulic circuit of the concrete pump to the main pressure gauge, transmitting live system pressure so the operator can monitor pump performance in real time. When this hose develops cracks, loose fittings, or internal deterioration, it can leak hydraulic fluid, produce inaccurate pressure readings, or fail entirely — leaving the operator without critical feedback on pump load and output. Replacing a worn hose promptly with a genuine Multiquip EM509517 keeps the pressure monitoring circuit functioning as designed and helps prevent undetected overloads on the hydraulic system.
Part Details
| Part Number | EM509517 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | 4000 PSI Main Gauge Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS400 |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS60TD |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS600P |
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.
