Multiquip 21010K7700 Water Pump Assembly

The Multiquip 21010K7700 Water Pump Assembly is a genuine OEM component designed for C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN series Mayco concrete pumps. As a direct OEM replacement, the 21010K7700 is manufactured to the same specifications as the original unit, ensuring a correct installation without improvisation or guesswork. This assembly is the authoritative replacement choice for operators running C30HDN and C30HDNI equipment who need a part they can trust to restore full machine function.

Key Features

• Genuine OEM Construction — Built to the exact tolerances and material grades of the original factory assembly, ensuring the pump delivers consistent flow and pressure performance in concrete pumping applications.
• Direct-Fit Replacement — Engineered to match the original mounting points and port configuration of the C30HDN and C30HDNI, so the assembly seats and connects correctly the first time.
• Confirmed Fitment — Compatible with C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN Mayco concrete pump models.
• Sustained Cooling and Fluid Transfer — A properly functioning water pump assembly keeps coolant and water circulating at the correct rate, protecting the engine and hydraulic system from heat buildup during continuous pumping operation.
• Engine Protection During Operation — A worn or failing water pump can cause overheating that leads to engine damage or unplanned shutdowns; replacing it promptly with the correct OEM assembly maintains safe operating temperatures.

The water pump assembly is responsible for circulating coolant through the engine to regulate operating temperature during demanding concrete pumping cycles. Without adequate coolant flow, heat builds up rapidly in the engine, increasing the risk of thermal damage, reduced output, and unplanned stoppages on the job. Replacing a degraded or failed pump with the correct OEM assembly restores proper coolant circulation and protects the engine's long-term performance.

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.