The Multiquip 0510040443 is a genuine OEM Key 1/4"x1/4"x43 designed for QP205SLT, QPT205SLT, QP305SLT, and QPT305SLT centrifugal pump models. Sourced directly from Multiquip, this key delivers an exact fit within the pump drivetrain, ensuring proper torque transfer between the shaft and impeller. Correct fitment is critical to pump output and shaft integrity, making part number accuracy essential when ordering this component.
Key Features
- Genuine OEM Construction — Machined to the precise dimensional tolerances required for correct shaft-to-impeller engagement in Multiquip centrifugal pump assemblies.
- Direct Drivetrain Fit — Slots directly into the keyway on the pump shaft, aligning the impeller for immediate, full-torque operation with no modification to the housing or shaft.
- Broad Centrifugal Pump Compatibility — Confirmed fitment across QP205SLT, QPT205SLT, QP305SLT, and QPT305SLT models in the Multiquip centrifugal pump lineup.
- Protects Shaft and Impeller — A correctly sized key prevents slippage under load, which left unchecked can cause accelerated wear to both the shaft keyway and the impeller bore.
- Critical Alignment Component — Proper key installation ensures the impeller runs true on the shaft, maintaining consistent flow output and protecting pump efficiency under sustained operation.
A woodruff or parallel key like the Multiquip 0510040443 is a small but load-critical component in any centrifugal pump drivetrain. It sits in the machined keyway between the pump shaft and the impeller hub, locking the two together so that rotational force from the engine is transferred directly to the impeller without slippage. When a key shears, deforms, or goes missing, the impeller can spin freely on the shaft — resulting in a complete loss of pumping capacity and potential damage to the shaft keyway that can be costly to repair. Replacing a worn or failed key promptly with the correct OEM part restores full drivetrain integrity and protects the surrounding components from secondary damage.
For questions about fitment or to confirm this is the right part for your Multiquip pump, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 0510040443 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key 1/4"x1/4"x43 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Centrifugal Pumps | QP205SLT |
| Centrifugal Pumps | QPT205SLT |
| Centrifugal Pumps | QP305SLT |
| Centrifugal Pumps | QPT305SLT |
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.
