The Multiquip EM70401A Seal Kit Complete ST80 is a genuine OEM seal kit designed for the ST80 swing tube concrete pump. As a factory-sourced component, EM70401A is manufactured to the exact material grades and dimensional tolerances required by the ST80, ensuring a correct, leak-free installation without guesswork. Keeping the correct seals in place is critical to maintaining pumping pressure and preventing concrete slurry from bypassing or contaminating the hydraulic and mechanical systems on your ST80. DHS Equipment stocks this kit so you can get your pump back in service fast.
Key Features
- OEM-Grade Seal Materials — Manufactured to Multiquip's exact compound and hardness specifications, delivering the compression and chemical resistance required for concrete pump service.
- Complete Kit Format — Includes all seals needed for a full service interval on the ST80, so you're not hunting down individual components from multiple sources.
- Direct ST80 Fitment — Engineered specifically for the ST80 swing tube concrete pump; installs directly into the original seal positions without machining or adaptation.
- Maintains Pumping Pressure — Worn or degraded seals allow pressure loss and bypass, reducing output and causing inconsistent concrete delivery; fresh seals restore full pumping performance.
- Leak Prevention — Correct seal integrity keeps concrete slurry contained within the pump circuit, protecting surrounding hydraulic and mechanical components from abrasive contamination.
The seal kit on a swing tube concrete pump is responsible for maintaining pressure boundaries between the pumping cylinders, the swing tube, and the discharge circuit. When seals wear or harden, concrete slurry can bypass the pump chamber, causing pressure drop, reduced output volume, and accelerated wear on pistons and the swing tube itself. Replacing the full seal set as a complete kit — using a part like the Multiquip EM70401A — restores the hydraulic integrity of the pump and extends the service life of the surrounding components.
Part Details
| Part Number | EM70401A |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Seal Kit Complete ST80 |
Compatibility & Fitment
| Name | Model |
|---|---|
| ST80 | ST80 |
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.
