The Multiquip EM517177 Emergency Stop Switch Assembly is a genuine OEM component designed for LS300, LS400, LS500, LS600, LS600P, LS300P, LS300G, LS300GK, C30HDG, and C30HDGA concrete pump models. As an OEM part, it is manufactured to the exact specification of the original component, ensuring a direct, correct installation into your machine's control circuit. Sourced and fulfilled by DHS Equipment, this assembly is the verified replacement for Multiquip and Mayco hydraulic-driven concrete pumps that share this control system. Confirm your model code before ordering to ensure this is the right part for your unit.
Key Features
- Genuine OEM Electrical Specification — Manufactured to the exact switching characteristics and circuit ratings of the original, so the control system responds exactly as intended.
- Direct-Install Replacement — Matches the original connector, actuator style, and mounting configuration for a straightforward swap with no rework of the control panel wiring.
- Broad Concrete Pump Fitment — Confirmed for LS300, LS400, LS500, LS600, LS600P, LS300P, LS300G, LS300GK, C30HDG, and C30HDGA hydraulic-driven and cycloidal concrete pump models.
- Critical Safety Circuit Integrity — The emergency stop is a primary operator protection circuit; a genuine OEM assembly ensures the switching action is fast, positive, and consistent with the machine's safety design.
- Verified OEM Part Number — EM517177 is the Multiquip OEM part number for this assembly, eliminating guesswork when cross-referencing your machine's parts manual.
The emergency stop switch assembly gives the operator immediate, positive control to cut power to the concrete pump's drive system in the event of a hazard or emergency. When activated, it opens the control circuit and brings pump operation to a halt, protecting both the operator and the equipment. A worn, sticky, or non-latching stop switch is a serious operational risk — the switch may fail to hold in the open position or become difficult to actuate under pressure, which is why replacing a degraded unit with a genuine OEM assembly like the EM517177 is essential rather than optional on concrete pump equipment.
For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment team before placing your order.
Part Details
| Part Number | EM517177 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Emergency Stop Switch Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300 |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS600P |
| Mayco Pumps | LS300P |
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDGA |
| 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.
