The Multiquip 214100000 is a genuine OEM Woodruff Key #1008 5/16" x 1" designed for MQD2HA, MQD3HA, MQD2H, and MQD3H diaphragm pumps. As a direct OEM replacement sourced from Multiquip, this key is manufactured to the exact dimensions required for proper shaft and hub engagement on these pump models. Verified fitment across the MQD2H and MQD3H series means you can order with confidence and get back to work without guesswork. DHS Equipment stocks genuine Multiquip parts so you receive the correct component every time.
Key Features
- Genuine OEM Dimensioning — Manufactured to the exact #1008 profile at 5/16" x 1", ensuring the key seats flush and transfers torque without slippage or rocking in the keyway.
- Drop-In Shaft Compatibility — Matches the original keyway geometry on MQD2HA, MQD3HA, MQD2H, and MQD3H diaphragm pump shafts for a clean, tool-standard installation.
- Confirmed Fitment for MQD Series Diaphragm Pumps — Verified for the MQD2H and MQD3H pump families, covering both standard and HA variants.
- Torque Integrity Under Load — A correctly installed Woodruff key locks the impeller or drive component to the shaft, maintaining consistent pump output and preventing eccentric wear on mating surfaces.
- Prevents Costly Secondary Damage — A worn or sheared key allows shaft-to-hub slippage that rapidly damages keyways, shafts, and driven components — replacing this small part promptly protects larger assemblies.
A Woodruff key is a small, semicircular metal key that seats into a curved slot milled into a shaft, with the flat top face engaging a matching keyway in the hub of a gear, pulley, or impeller mounted to that shaft. Its purpose is to lock the two components together rotationally so that torque is transmitted from the shaft to the driven part without slipping. When a Woodruff key shears, deforms, or goes missing, the mounted component spins freely on the shaft, causing an immediate loss of pump function and progressive damage to the keyway surfaces on both the shaft and the hub.
For assistance confirming fitment or sourcing additional Multiquip parts, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 214100000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Woodruff Key #1008 5/16" x 1" |
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.
