The Multiquip P3306 Bottom Diaphragm is a genuine OEM replacement designed for the PQP300D. Sourced directly from Multiquip, this part meets the exact material and dimensional specifications required for correct pump operation. If you're servicing a PQP300D and need a dependable, like-for-like replacement, the part is the correct part for the job.
Key Features
- OEM-Grade Diaphragm Material — Manufactured to Multiquip's original compound and thickness specifications, ensuring the flex characteristics and pressure rating match the original component exactly.
- Direct-Fit Replacement — Engineered to seat and seal in the same position as the factory-installed diaphragm, making installation straightforward during standard pump service.
- PQP300D Compatibility — Confirmed fitment for the PQP300D, so you can order with confidence knowing this is the correct bottom diaphragm for that model.
- Restores Full Pumping Capacity — A worn or cracked bottom diaphragm causes loss of prime, reduced output, and fluid bypass. Replacing it with this part restores the pump's designed flow and suction performance.
- Fuel and Fluid Resistance — Diaphragms in pump applications are exposed to abrasive or chemically active media; OEM specification ensures the material holds up under the operating conditions the PQP300D was designed for.
The bottom diaphragm is a critical flexible membrane within the pump assembly that creates the alternating pressure differential needed to draw fluid in and push it through the discharge. As it flexes repeatedly under load, the material can fatigue, crack, or lose elasticity — causing the pump to lose prime, deliver inconsistent flow, or fail to move fluid altogether. Replacing a failed diaphragm promptly restores proper pump function and prevents further wear on surrounding components.
For fitment questions or to confirm this is the correct part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | P3306 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Bottom Diaphragm |
Compatibility & Fitment
| Name | Model |
|---|---|
| PQP300D | PQP300D |
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.
