Multiquip EM509588 Poly Flex Tube 1/2 In. Black

The Multiquip EM509588 is a genuine OEM Poly Flex Tube 1/2 In. Black designed for Mayco hydraulic-driven concrete pump models including LS-40, LS40D, LS40TD, LS50TD, LS60TD, LS300, LS400, LS500, and LS600, as well as the ST-70 swing tube series. As a direct Multiquip OEM part, EM509588 is produced to the same specification as the original component installed at the factory, ensuring correct inside diameter, wall thickness, and material grade for your machine. This tube is a stock replacement that installs into the existing routing without alteration, keeping your concrete pump running to spec. DHS Equipment supplies this part direct from Multiquip's authorized distribution network, so you receive an authentic component backed by the manufacturer.

Key Features

• OEM-Grade Polyethylene Construction — Produced from the same black poly material spec as the original, maintaining correct flexibility and pressure compatibility for hydraulic or fluid-routing applications on Mayco concrete pumps.
• Correct 1/2 In. Inside Diameter — Sized to match the original tube routing precisely, allowing direct connection to existing fittings and ports without adapters or modifications.
• Broad Mayco Pump Compatibility — Fits LS-40, LS40D, LS40TD, LS50TD, LS60TD, LS300, LS400, LS500, LS600, and ST-70 models, covering a wide range of hydraulic-driven and swing-tube concrete pump configurations.
• Maintains Fluid Routing Integrity — A cracked, kinked, or deteriorated flex tube can disrupt hydraulic or control fluid flow, leading to erratic pump behavior or pressure loss. A fresh OEM tube restores consistent, leak-free flow.
• Genuine Multiquip OEM Part — Sourced through Multiquip's authorized supply chain, this part is a verified replacement carrying the same part number as the component it replaces.

A poly flex tube serves as a conduit for hydraulic fluid, control fluid, or lubrication flow between components within the pump system. On concrete pump models like the Mayco LS and ST series, these tubes are routed through tight clearances and must remain flexible yet resistant to the pressures and temperatures generated during pumping operations. When a flex tube cracks, hardens with age, or develops a leak, it can starve downstream components of fluid or allow contamination into the system — causing pump performance to degrade or the machine to shut down unexpectedly. Replacing a worn tube with the correct OEM part restores proper flow and protects connected components.

Part Details

Compatibility & Fitment

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.