The Multiquip 3053317 Retaining Washer is a genuine OEM component designed for MQ diaphragm pump models including the D306, MQ-D306HA, and MQ-D305. Sourced directly from Multiquip, this retaining washer meets the exact dimensional and material specifications of the original part. It drops into place without modification, ensuring a secure, properly seated fit within the pump assembly. Whether you are performing scheduled maintenance or replacing a worn component, the part is the correct OEM choice for these diaphragm pump models.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the original Multiquip specification, ensuring correct thickness, bore diameter, and seating geometry critical to retaining washer function in a diaphragm pump.
- Direct-Fit Replacement — Installs into the same position as the original without rework, aligning precisely with the fastener or shaft it is designed to retain.
- Confirmed Fitment — Compatible with Multiquip D306, MQ-D306HA, and MQ-D305 diaphragm pump models.
- Maintains Internal Component Retention — A correctly functioning retaining washer keeps internal pump components properly located under load; a worn or missing washer can allow unwanted axial movement and accelerate wear on surrounding parts.
- Fluid System Integrity — In a diaphragm pump, proper component retention directly affects sealing performance; using the correct OEM washer helps prevent premature seal failure and fluid bypass.
A retaining washer is a small but critical fastening component that holds internal parts — such as shafts, valves, or diaphragm assemblies — securely in their designed position within the pump housing. In a diaphragm pump, where cyclical pressure and mechanical movement place constant stress on internal components, a properly installed retaining washer prevents axial drift and keeps mating parts aligned. When a retaining washer wears down, deforms, or goes missing, adjacent components can shift under load, leading to accelerated wear, loss of pump efficiency, or seal failure.
Part Details
| Part Number | 3053317 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Retaining Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | D306 |
| MQ Diaphragm Pumps | MQ-D306HA |
| MQ Diaphragm Pumps | MQ-D305 |
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.
