Multiquip EM25171 Rubber Gasket

The Multiquip EM25171 Rubber Gasket is a genuine OEM component designed for the ST-45HRM concrete pump. As a direct OEM replacement, it is manufactured to the exact material and dimensional specifications required by Multiquip, ensuring a proper seal between mating surfaces. DHS Equipment sources this part directly through authorized Multiquip channels, so you can order with confidence knowing you are receiving the correct component for your machine.

Key Features

• OEM-Grade Rubber Compound — Formulated to withstand the pressure, moisture, and mechanical stress demands of concrete pump applications, maintaining an effective seal over extended service intervals.
• Drop-In Replacement — Matches the original gasket profile on the ST-45HRM, seating flush against mating surfaces without trimming or modification.
• Confirmed Fitment for ST-45HRM — Verified for the Multiquip ST-45HRM swing tube concrete pump series.
• Leak Prevention — A properly seated gasket prevents fluid and slurry bypass between pump components; a cracked or compressed gasket can lead to messy leaks, pressure loss, and accelerated wear on adjacent parts.
• Fuel and Fluid System Integrity — Maintaining correct sealing in concrete pump assemblies is critical to operational safety and consistent output pressure — this gasket plays a direct role in preserving both.

A rubber gasket creates a compression seal between two joined surfaces in the pump assembly, preventing pressurized fluid, slurry, or air from escaping at connection points. Over time, gaskets can harden, crack, or deform under heat and mechanical stress, causing leaks that reduce pump efficiency and can contaminate surrounding components. Replacing a worn gasket promptly keeps the pump performing at full capacity and prevents minor seepage from developing into more serious damage.

For questions about compatibility or to confirm this is the right part for your ST-45HRM, contact the DHS Equipment parts team directly.

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.