The Multiquip EM18447 3/4" Pipe Square Head Plug is a genuine OEM replacement designed for ST-45HRM and ST-70 submersible pumps. As a factory-sourced component, EM18447 matches the original specification exactly, ensuring a secure, leak-free seal in the pump's pipe fitting port. This plug is confirmed to fit ST-45HRM and ST-70 models, making it the straightforward choice when servicing these units in the field or shop.
Key Features
- Genuine OEM Material Grade — Manufactured to the same material and thread specification as the original, ensuring consistent sealing performance under the pressure and temperature conditions typical of submersible pump operation.
- Direct Threaded Fit — 3/4" pipe thread profile seats flush into the designated port with no thread chasing or adapter required, restoring the housing to a fully sealed condition.
- Confirmed Fitment for ST-Series Pumps — Verified for ST-45HRM and ST-70 submersible pump models, so you can order with confidence against your machine's model code.
- Leak Prevention at the Source — A failed or missing pipe plug allows fluid ingress or pressure loss at the pump housing; this OEM plug restores the integrity of that sealed cavity and protects internal components from contamination.
- Square Head Drive — The square head profile provides a positive wrench engagement for proper torque application during installation, reducing the risk of rounding or cross-threading on reinstall.
A pipe plug seals an unused or access port in the pump housing, preventing water, debris, or air from entering the internal cavity and disrupting pump operation. On submersible pumps like the ST-45HRM and ST-70, maintaining a fully sealed housing is critical — any breach at a fitting port can allow contamination that degrades motor or impeller performance over time. When a plug is missing, damaged, or has developed thread wear, replacing it with the correct OEM part restores the housing seal and keeps the pump operating as intended.
For questions about fitment or to confirm this part is correct for your machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | EM18447 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | 3/4" Pipe Square Head Plug |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST-45HRM |
| Submersible Pumps | ST-70 |
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.
