Multiquip EM517648 Control Box Assembly

The Multiquip EM517648 Control Box Assembly is a genuine OEM component designed for LS400, LS500, and LS600 series hydraulic-driven concrete pumps. As an authorized Multiquip replacement part, it is manufactured to the same specifications as the original unit your machine shipped with, ensuring consistent electrical operation across the pump control circuit. This assembly is a direct replacement for worn, damaged, or failed control boxes on LS-series Mayco concrete pumps, and the part number EM517648 confirms exact compatibility with these models.

Key Features

• Genuine OEM Electrical Spec Compliance — Built to original output and wiring configuration standards, ensuring correct signal behavior across the pump control circuit without guesswork.
• Plug-and-Play Integration — Connects directly to the existing harness and mounting points on LS-series pumps, matching the original assembly's form and connector layout.
• Confirmed LS-Series Fitment — Verified for use on LS400, LS500, and LS600 hydraulic concrete pumps; always cross-reference your model code before ordering.
• Centralized Pump Control Integrity — A correctly functioning control box keeps hydraulic sequencing and operator inputs responsive; a failed unit can render the pump inoperable mid-pour.
• Electrical Safety Assurance — OEM construction means proper insulation ratings, correct terminal sizing, and appropriate overcurrent protection for the LS-series operating environment.

The control box assembly serves as the central electrical hub for the concrete pump, routing operator commands to the hydraulic system that drives the pumping action. It houses the switching, relay, and protective components that govern start, stop, and operational functions — meaning that if this assembly fails, the operator loses the ability to command the pump reliably. A degraded or damaged control box can cause erratic pump behavior, failure to start, or loss of control response, making timely replacement critical to maintaining safe and continuous concrete placement operations.

DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming that EM517648 is the correct control box assembly for your specific machine, contact our parts team before placing your order.

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.