Multiquip 176700200 NPT Pipe Plug 1/4"

The Multiquip 176700200 is a genuine OEM NPT Pipe Plug 1/4" designed for MQD2H, MQD3H, MQD2HA, and MQD3HA diaphragm pumps. As a factory-sourced component, it meets the exact material and thread specifications required by Multiquip for these pump models. This plug installs directly into the designated 1/4" NPT port with no thread chasing or fitting modification needed. Sourced from DHS Equipment, you can count on receiving the correct OEM part backed by verified fitment for the MQD diaphragm pump series.

Key Features

• OEM Thread Integrity — Factory-spec 1/4" NPT taper thread ensures a pressure-tight, leak-free seal against pump housing ports.
• Drop-In Port Fit — Machined to match the standard 1/4" NPT port dimensions on MQD series diaphragm pumps for a straightforward installation.
• Broad MQD Series Compatibility — Confirmed fitment for MQD2H, MQD3H, MQD2HA, and MQD3HA diaphragm pump models.
• Maintains Pump Pressure Integrity — A properly seated pipe plug prevents fluid loss and pressure bleed-off, keeping the pump operating at rated output.
• Fluid System Safety — Correctly plugged ports prevent unintended discharge of pumped media, which matters especially when handling slurries or hazardous fluids.

A pipe plug is a threaded fitting used to seal an unused or access port in a pump housing, manifold, or fluid passage. On Multiquip diaphragm pumps, these plugs close off 1/4" NPT ports that would otherwise allow air ingestion or fluid leakage, both of which directly compromise pump prime and flow performance. A damaged, missing, or cross-threaded pipe plug can cause pressure loss, contamination ingress, or visible fluid weeping at the pump body — any of which signals the plug needs immediate replacement.

For questions about fitment or to confirm this is the right 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.