The Multiquip 335419000 Output Ball Bearing #6307 is a genuine OEM component designed for MQD2H, MQD3H, MQD2HA, and MQD3HA diaphragm pumps. As a direct factory replacement, this bearing meets the exact dimensional and load tolerances specified for the output shaft on these Multiquip diaphragm pump models. Sourced from Multiquip's authorized parts supply, the 335419000 ensures a correct, direct installation with no guesswork on fitment.
Key Features
- Genuine OEM Bearing Grade — Manufactured to the exact radial clearance and load rating specified for the output shaft position, ensuring the bearing seats and performs as Multiquip intended.
- Direct Output Shaft Installation — Dimensioned to drop into the output bearing housing of MQD-series diaphragm pumps without machining or shimming.
- Confirmed Fitment — Verified for MQD2H, MQD3H, MQD2HA, and MQD3HA diaphragm pump models.
- Sustained Pump Output — A correctly functioning output bearing keeps the drive shaft running true, maintaining consistent fluid displacement and stroke efficiency across the pump's operating range.
- Protects Downstream Components — A worn or failed output bearing introduces shaft play that accelerates seal and diaphragm wear, making timely bearing replacement critical to overall pump service life.
The output ball bearing supports the pump's drive shaft at the output end, carrying the radial and axial loads generated during operation while allowing the shaft to rotate freely and concentrically. In a diaphragm pump, maintaining tight shaft alignment directly affects the consistency of the diaphragm stroke and the integrity of the valve seals — any bearing wear that allows shaft deflection will cause uneven diaphragm loading and premature seal failure. Replacing a worn bearing with the correct 335419000 restores proper shaft support and protects the surrounding pump assembly.
Part Details
| Part Number | 335419000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Output Ball Bearing #6307 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2H |
| Diaphragm Pumps | MQD3H |
| Diaphragm Pumps | MQD2HA |
| Diaphragm Pumps | MQD3HA |
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.
