The Multiquip EM27118 Auto Comp Cylinder with Bracket is a genuine OEM replacement designed for the ST30 swing tube concrete pump. Sourced directly from Multiquip, this part meets the exact specifications of the original component installed at the factory. If your ST30 is showing signs of pressure inconsistency or auto-compensation failure, the part is the correct OEM part to restore full pumping performance.
Key Features
- Genuine OEM Construction — Manufactured to the precise hydraulic and dimensional tolerances required for proper auto-compensation function on the ST30 concrete pump.
- Bracket-Included Assembly — Comes complete with the mounting bracket, so you receive the full assembly needed for a direct, bolt-on installation without sourcing separate hardware.
- ST30 Verified Fitment — Engineered specifically for the ST30 swing tube concrete pump, ensuring correct interface with the pump's hydraulic and mechanical systems.
- Sustained Output Pressure — A properly functioning auto comp cylinder maintains consistent concrete delivery pressure; a worn or failed unit causes irregular pumping cycles and output loss.
- Hydraulic System Integrity — As a component within the pump's hydraulic circuit, using a correctly rated OEM cylinder prevents seal incompatibility and potential system pressure faults.
The auto comp cylinder is a hydraulic actuator that regulates the compensation pressure within the concrete pump's swing tube system. It works to balance and maintain consistent concrete output by automatically adjusting pressure during the pumping cycle. When this cylinder wears or fails, the pump can experience erratic delivery, pressure drops, or complete loss of auto-compensation — disrupting pour consistency and requiring immediate attention to keep the pump operational.
For questions about fitment or to confirm this is the right part for your ST30, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | EM27118 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Auto Comp Cylinder with Bracket |
Compatibility & Fitment
| Name | Model |
|---|---|
| ST30 | ST30 |
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.
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