The Multiquip 336019000 Plunger Bearing is a genuine OEM component designed for MQD2H and MQD3H diaphragm pumps. Sourced directly from Multiquip, this bearing is manufactured to the exact tolerances required to keep the pump plunger operating smoothly and consistently under working load. It is a direct OEM replacement for the factory-installed bearing, confirmed to fit MQD2H and MQD3H models without modification. Stocking this part ensures your pump is restored to its original operating condition quickly and correctly.
Key Features
- Precision-Tolerance OEM Construction — Manufactured to Multiquip's exact bearing specifications, ensuring the plunger seats and travels correctly within the pump housing with every stroke.
- Direct OEM Replacement — Drops into the factory bearing position on MQD2H and MQD3H pumps, matching the original mounting interface for straightforward installation.
- Confirmed Fitment — Verified for MQD2H and MQD3H Multiquip diaphragm pump models; always cross-reference your model code before ordering.
- Sustained Pump Output — A correctly fitted plunger bearing maintains consistent stroke alignment, supporting steady flow rate and pressure delivery; a worn bearing leads to side-loading, accelerated seal wear, and loss of output.
- Genuine Multiquip Part — Backed by Multiquip's OEM quality assurance, this is the same bearing supplied in new production units — not an approximation.
The plunger bearing supports the reciprocating plunger shaft inside a diaphragm pump, keeping it correctly aligned as it moves back and forth to create the suction and discharge strokes. Without a properly functioning bearing, the plunger can shift off-axis, placing uneven stress on the diaphragm, seals, and housing — leading to premature failure of surrounding components and a drop in pumping performance. Replacing a worn or failed plunger bearing promptly restores correct shaft alignment and protects the integrity of the entire pump assembly.
Part Details
| Part Number | 336019000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Plunger Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
