The Multiquip 1042648 Oil Plug M12 is a genuine OEM component designed for the ST4125D and ST6125D clean water submersible pumps. Sourced directly from Multiquip, this plug meets the exact specifications required to properly seal the oil chamber on these units. It is a direct-fit replacement for the original part, compatible with both the ST4125D and ST6125D models with no modification needed to the housing or threads. Keeping this plug in good condition is essential to preventing oil contamination and protecting the pump's internal components during submerged operation.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Multiquip's exact thread and torque specifications, ensuring a leak-free seal on the oil chamber every time.
- M12 Thread Specification — Correct M12 metric thread profile installs directly into the oil port with no chasing or re-tapping required.
- Confirmed Fitment — Verified for ST4125D and ST6125D clean water submersible pump models.
- Protects Critical Internal Components — A properly seated oil plug maintains correct oil levels and prevents water intrusion into the mechanical seal cavity, extending pump service life.
- Durable Construction — Built to withstand the pressure and moisture conditions inherent to submerged pump environments, resisting corrosion and thread wear over repeated service intervals.
The oil plug seals the oil fill or drain port on a submersible pump's mechanical seal housing, keeping the lubricating oil that protects the pump's shaft seal contained and free from water contamination. Without a properly functioning plug, oil can escape or water can enter the seal chamber, accelerating wear on the mechanical seal and shaft bearing and ultimately leading to pump failure. Replacing a damaged, stripped, or missing plug promptly is one of the simplest and most effective preventive maintenance steps you can take to protect your submersible pump investment.
For fitment questions or help confirming this part is right for your machine, contact the DHS Equipment team.
Part Details
| Part Number | 1042648 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Plug M12 |
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.
