The Multiquip 212100000 is a genuine OEM Pin 1/8 in. Dia. x 3/8 in. designed for MQD2HA, MQD3HA, MQD2H, and MQD3H diaphragm pump models. As a direct OEM replacement, this pin is manufactured to the exact dimensions required by Multiquip, ensuring a correct, secure installation without rework or modification. Sourced directly through authorized Multiquip supply channels, part 212100000 gives you confidence that you are installing the right component the first time. If you are servicing any of the MQD2H or MQD3H series diaphragm pumps, verify your model code against the fitment list before ordering.
Key Features
- Exact OEM Dimensions — Manufactured to the precise 1/8 in. diameter by 3/8 in. length specification, ensuring proper retention and alignment within the pump assembly.
- Genuine Multiquip OEM Part — Supplied as an authorized OEM component, matching the original part installed at the factory for consistent mechanical performance.
- Direct Drop-In Replacement — Engineered to fit the existing pin bore and retention points on compatible MQD series pumps, so installation is straightforward.
- Broad MQD Series Compatibility — Confirmed fitment across MQD2HA, MQD3HA, MQD2H, and MQD3H diaphragm pump models.
- Maintains Pump Integrity — A correctly sized retaining pin keeps internal components properly positioned; a worn or undersized pin can lead to component movement, accelerated wear, and pump failure.
This small-diameter retaining pin serves as a critical fastening and positioning component within the diaphragm pump assembly. It holds internal linkage or housing components in precise alignment, preventing lateral movement that would otherwise cause accelerated wear on adjacent parts. When this pin is lost, bent, or worn to an out-of-spec diameter, the pump can develop play in its internal mechanism, leading to reduced pumping efficiency and potential damage to surrounding components.
Part Details
| Part Number | 212100000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pin 1/8 in. Dia. x 3/8 in. |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2HA |
| Diaphragm Pumps | MQD3HA |
| 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.
