Multiquip EM14411 Piston Cup

The Multiquip EM14411 Piston Cup is a genuine OEM component designed for C30HD-series Mayco concrete pumps, including the C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDZ, and C30HDGA models. As a direct OEM replacement, this piston cup is manufactured to the exact material and dimensional standards Multiquip specifies for these cycloidal-drive concrete pumps. Sourcing a genuine OEM part like the EM14411 ensures the pumping circuit maintains its designed output pressure and flow consistency. DHS Equipment stocks this part to help keep your concrete pump running at full capacity.

Key Features

• Genuine OEM Material Grade — Manufactured to Multiquip's specified compound hardness and elasticity ratings, ensuring the cup seats and seals correctly within the pump cylinder bore.
• Direct-Fit Replacement — Engineered to drop into the piston assembly of C30HD-series pumps without modification, maintaining the correct stroke geometry and seal compression.
• Broad C30HD Series Coverage — Confirmed fitment across C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDZ, and C30HDGA Mayco concrete pump models.
• Sustained Pumping Pressure — A properly functioning piston cup holds the hydraulic seal needed to push concrete mix through the line; a worn cup causes pressure loss, reduced output, and mix slippage past the piston.
• Verified OEM Part Number — Order with confidence using part number EM14411, the exact Multiquip OEM reference for this piston cup across the C30HD platform.

The piston cup is a sealing component that fits around the piston head inside the concrete pump cylinder. Its job is to form a tight, flexible seal against the cylinder wall so that each stroke of the piston displaces concrete mix forward through the delivery line rather than allowing it to bypass the piston. Over time, the cup wears from the abrasive nature of concrete slurry, causing it to lose its sealing profile — the result is reduced line pressure, inconsistent flow, and eventually an inability to push mix to the desired distance or height. Replacing the EM14411 piston cup at the first sign of pressure drop restores the pump's rated output and protects the cylinder bore from accelerated wear.

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.