Multiquip EM14843 Upper Seat

The Multiquip EM14843 Upper Seat is a genuine OEM component designed for C30HD, C30HDNI, C30HDG, C30HDZ, C30HDGA, C30HDN, and C30HDNI Precision and Zenith series Mayco concrete pumps. Sourced directly from Multiquip, this part meets the exact specifications of the original, ensuring correct fit and function within the pump's valve assembly. Verified fitment across the C30HD family makes this the straightforward choice when servicing your Mayco concrete pump.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional standards, delivering the same seating performance as the part it replaces.
• Exact-Match Installation — Engineered to seat directly into the valve assembly without alteration, maintaining correct valve geometry and sealing contact.
• Broad C30HD Family Fitment — Compatible with C30HD, C30HDNI, C30HDG, C30HDZ, C30HDGA, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pump models.
• Consistent Pump Output — A properly seated upper seat maintains positive valve closure under pressure, supporting steady concrete flow and preventing pressure loss during pumping cycles.
• Pressure System Integrity — Correct valve seating is critical in concrete pump applications; using the OEM-spec upper seat helps prevent backflow and protects the pump's hydraulic circuit from premature wear.

The upper seat is a key component within the concrete pump's valve assembly, providing the sealing surface against which the valve ball or plate closes during each pumping stroke. When the upper seat wears, becomes pitted, or loses its sealing surface, the valve can no longer close completely, resulting in backflow, reduced output pressure, and inconsistent concrete delivery. Replacing a worn upper seat restores proper valve function and protects downstream pump components from the added stress of operating with a compromised seal.

For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment team before ordering.

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.