Multiquip 3054929 Waterbox

The Multiquip 3054929 Waterbox is a genuine OEM component designed for MQ-D305, D306, and MQ-D306HA diaphragm pumps. Sourced directly from Multiquip, this part meets the exact specifications of the original equipment and installs as a direct replacement without adaptation. It is confirmed compatible with the MQ Diaphragm Pump series, making it a reliable choice for operators maintaining these units in the field.

Key Features

• Genuine OEM Construction — Manufactured to the precise material and dimensional tolerances required for proper waterbox function in Multiquip diaphragm pump systems.
• Direct-Fit Replacement — Mounts in the original position with existing hardware, matching the exact interface of the factory waterbox on MQ-D305, D306, and MQ-D306HA units.
• Confirmed Diaphragm Pump Fitment — Verified for use across the MQ-D305, D306, and MQ-D306HA pump models in the MQ Diaphragm Pump family.
• Sustained Flow Integrity — A correctly functioning waterbox maintains the pump's fluid separation and flow path; a cracked or failed unit leads to leakage, pressure loss, and pump inefficiency.
• Genuine Part Assurance — Carries the Multiquip OEM part number 3054929, so you can cross-reference with your service manual and confirm accuracy before installation.

The waterbox is a critical housing component in a diaphragm pump that channels and contains fluid as it moves through the pump's discharge side. It works in conjunction with the diaphragm and valve assemblies to maintain proper flow separation and pressure integrity during operation. When the waterbox cracks, warps, or develops leaks, the pump loses prime efficiency and can suffer internal contamination, making timely replacement essential to keeping the unit pumping at full capacity.

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.