The Multiquip 1042642 Lower Packing is a genuine OEM component designed for ST4125D and ST6125D clean water submersible pumps. As an authorized Multiquip replacement part, it is manufactured to the same specifications as the original, ensuring a correct fit and consistent sealing performance. This part is confirmed compatible with the ST4125D and ST6125D models, making it a direct drop-in service item for routine maintenance or seal failure repairs. Keep a spare on hand to minimize pump downtime during critical dewatering operations.
Key Features
- Genuine OEM Sealing Material — Manufactured to the original material and compression specification, delivering the same watertight performance as the factory-installed packing.
- Direct Service Replacement — Installs in the same position as the original lower packing with no modification to the pump housing or shaft assembly.
- Confirmed Fitment — Verified for ST4125D and ST6125D Multiquip clean water submersible pump models.
- Maintains Pump Integrity — A worn or degraded lower packing allows water infiltration around the shaft, leading to seal failure and accelerated bearing wear; replacing it promptly restores proper pump operation.
- Leak Prevention — Correct packing compression is critical in submersible applications where shaft seal integrity directly affects pump efficiency and motor protection.
The lower packing is a compression seal component that wraps around the pump shaft to prevent water from migrating along the shaft toward the motor and bearing assembly. It acts as a sacrificial wear element — by design it absorbs shaft movement and slight runout so that harder, more expensive components are protected. When the lower packing becomes worn, compressed flat, or damaged, the seal it provides breaks down, allowing water ingress that can cause premature bearing failure and ultimately motor damage. Regular inspection and timely replacement of the lower packing is a low-cost way to protect the pump's internal components and maintain consistent flow performance.
Part Details
| Part Number | 1042642 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lower Packing |
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.
