The Multiquip 1042664 is a genuine OEM Lower Ball Bearing 6308/7308 designed for ST4125D and ST6125D submersible clean water pumps. As a direct OEM replacement, this bearing is manufactured to the same dimensional and load tolerances as the original, ensuring it seats correctly in the lower bearing housing without modification. Confirmed fitment covers the ST4125D and ST6125D models in the Multiquip submersible pump lineup. Keeping this bearing in good condition is essential to maintaining smooth, low-vibration pump operation and protecting the motor shaft from premature wear.
Key Features
- Dual-Designation Bearing Grade — Rated to both 6308 and 7308 cross-reference standards, confirming the correct radial load capacity and geometry for the lower bearing position in these submersible pumps.
- Genuine OEM Component — Sourced directly from Multiquip, this part matches the original bearing specification for bore diameter, outer race dimensions, and width — no guesswork on fitment.
- Confirmed Fitment for ST4125D and ST6125D — Verified for use in Multiquip ST4125D and ST6125D clean water submersible pump models.
- Protects Motor Shaft Alignment — The lower bearing supports the pump shaft under axial and radial loads; a worn bearing allows shaft deflection that accelerates seal wear and can damage the motor windings.
- Drop-In Lower Housing Replacement — Engineered to the exact outer and inner race dimensions of the original, so it presses into the lower bearing housing the same way the factory-installed component did.
The lower ball bearing in a submersible pump supports the motor shaft at its base, keeping it centered and stable as the impeller spins against water pressure. It absorbs both the radial forces generated by the rotating shaft and any axial thrust from the pumping action, allowing the motor to run smoothly and efficiently. When this bearing wears or fails, the shaft begins to run off-center, causing vibration, increased heat, accelerated mechanical seal failure, and ultimately motor damage — making timely replacement critical to pump service life.
Part Details
| Part Number | 1042664 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lower Ball Bearing 6308/7308 |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Submersible Pumps Clean Water | ST4125D |
| MQ Submersible Pumps Clean Water | ST6125D |
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.
