The Multiquip EM26541 is a genuine OEM Urethane O-Ring ST30 #115 designed for the ST30 submersible pump. As a factory-authorized component, it delivers the exact material grade and dimensional tolerancing required to maintain a leak-free seal in demanding pump applications. This O-ring is a direct-fit replacement for ST30 units, requiring no modification to seat correctly. Sourcing the correct OEM seal ensures your pump maintains full performance and operational integrity from the moment it goes back into service.
Key Features
- Urethane Seal Material — Urethane construction provides superior abrasion resistance and compression recovery compared to standard rubber, holding a reliable seal under the wet, high-pressure conditions typical of submersible pump operation.
- Exact OEM Dimensions — Manufactured to the precise cross-section and inner diameter specified for the ST30, this O-ring seats flush in its groove without adjustment or shimming.
- ST30 Submersible Pump Fitment — Confirmed fit for the Multiquip ST30 submersible pump, eliminating guesswork when ordering a seal replacement.
- Leak Prevention — A correctly installed O-ring keeps water from bypassing the seal interface, protecting internal pump components from contamination and maintaining discharge efficiency.
- Genuine OEM Part — Supplied as EM26541 directly within the Multiquip OEM parts program, ensuring the material spec and profile match what the pump was originally built with.
An O-ring is a circular elastomeric seal that sits in a machined groove between two mating surfaces, compressing to form a watertight barrier when the assembly is drawn together. In a submersible pump like the ST30, O-rings prevent water from infiltrating housings, bearing cavities, or discharge connections, and they protect internal components from the abrasive slurries these pumps often handle. When an O-ring hardens, cracks, or takes a permanent set from heat and pressure cycling, the seal fails and water intrusion or pressure loss follows — making timely replacement with the correct-spec part essential to pump longevity.
Need help confirming this part fits your equipment? Contact the DHS Equipment team for fitment support and parts assistance.
Part Details
| Part Number | EM26541 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Urethane O-Ring ST30 #115 |
Compatibility & Fitment
| Name | Model |
|---|---|
| ST30 | ST30 |
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.
