The Multiquip 213400001 Plunger Arm is a genuine OEM component designed for MQD2H and MQD3H diaphragm pumps. As a direct Multiquip OEM part, it is manufactured to the same specifications as the original, ensuring consistent stroke mechanics and diaphragm actuation across the pump's full operating range. Verified fitment for MQD2H and MQD3H models makes this the straightforward replacement choice when servicing these units.
Key Features
- Genuine OEM Stroke Geometry: — Manufactured to original Multiquip tolerances so the plunger arm delivers consistent stroke length and force transfer to the diaphragm on every cycle.
- Drop-In Compatibility: — Matches the original mounting points and pivot dimensions of MQD2H and MQD3H pumps, allowing a clean, straightforward swap during service.
- Confirmed Fitment: — Verified for MQD2H and MQD3H Multiquip diaphragm pump models.
- Sustained Flow Output: — A correctly dimensioned plunger arm maintains proper diaphragm deflection, preserving rated flow volume and discharge pressure over extended operation.
- Wear-Critical Component: — The plunger arm is a high-cycle mechanical part; replacing it at first signs of wear prevents progressive damage to the diaphragm and surrounding drive components.
The plunger arm is the mechanical link between the pump's drive mechanism and the diaphragm. As the drive rotates, the plunger arm converts that rotational motion into the reciprocating action that flexes the diaphragm back and forth, drawing fluid in on one stroke and forcing it out on the next. When the plunger arm is worn, bent, or damaged, stroke length and force become inconsistent, leading to reduced flow output, uneven discharge pressure, and accelerated wear on the diaphragm itself. Keeping this component in good condition is essential to maintaining the pump's rated performance in demanding fluid-transfer applications.
Part Details
| Part Number | 213400001 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Plunger Arm |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2H |
| Diaphragm Pumps | MQD3H |
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.
