Multiquip 2123 Suction Priming Chamber

The Multiquip 2123 Suction Priming Chamber is a genuine OEM component designed for a wide range of Multiquip and Whiteman equipment, including STX55, HTX44, STXD6i, HTXD6i, HTXG6DF, HHXD5, STX55Y6, STX55J6, HTX44Y4, HTX44Y5, HTX44K4, HTX44K5, WRS5200, WRS5200DFPU, WRSPUDF, and MQD2H and MQD3H series diaphragm pumps. As a direct OEM replacement sourced through Multiquip's authorized parts network, the 2123 is built to the same specification as the part it replaces, ensuring correct fit and function without improvisation. Keeping this chamber in good working condition is essential to maintaining proper fluid prime across the pump and fluid-handling systems it serves.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional specifications, ensuring the chamber seats, seals, and performs exactly as the original.
• Broad Equipment Compatibility — Fits STX55, HTX44, STXD6i, HTXD6i, HTXG6DF, HHXD5, WRS5200, WRSPUDF, and MQD2H/MQD3H series machines — one part number covering multiple platforms.
• Direct Drop-In Replacement — Matches the original mounting interface and port geometry, allowing straightforward installation without reworking surrounding components.
• Maintains Prime Integrity — A correctly functioning suction priming chamber holds vacuum and initiates fluid draw efficiently; a cracked or compromised chamber causes loss of prime, erratic flow, and pump strain.
• Verified Multiquip Part Number — Sourced and sold as Multiquip part 2123 — confirm this number against your equipment's parts manual before ordering to ensure an exact match.

The suction priming chamber is a critical component in the priming circuit of a pump or fluid-handling system. It creates and holds the initial vacuum needed to draw fluid up into the pump head before steady-state flow is established — without it functioning correctly, the system either fails to prime entirely or loses prime under load. On equipment such as the MQD series diaphragm pumps, a damaged or worn priming chamber leads directly to weak suction, air ingestion, and inconsistent output. Regular inspection and timely replacement of the 2123 keeps the priming circuit airtight and the machine operating 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.