The Multiquip 0489353850 is a genuine OEM Casing O-Ring designed for QP402B and QP402H centrifugal pumps. As a direct OEM replacement, it is manufactured to the exact material grade and dimensional tolerances specified for these pumps, ensuring a proper compression seal at the casing joint. This part is confirmed to fit the QP402B and QP402H models, making it a straightforward swap during scheduled maintenance or emergency repair. Sourced directly through authorized Multiquip supply channels, the 0489353850 delivers the fit and sealing performance your pump depends on.
Key Features
- Correct Elastomer Specification — Manufactured to the exact compound and durometer rating required for the pump casing interface, maintaining a reliable compression seal under operating pressure.
- Drop-In Casing Fit — Dimensioned to seat precisely in the casing groove of QP402B and QP402H pumps, requiring no trimming or modification to install.
- Confirmed Fitment — Verified for use on Multiquip QP402B and QP402H centrifugal pumps.
- Leak Prevention at the Source — A worn or damaged casing O-ring allows pressurized water to bypass the casing joint, robbing the pump of prime and flow output. A fresh OEM seal restores full pump efficiency.
- Genuine OEM Quality — Supplied as a genuine Multiquip OEM component, built to the same standard as the original part installed at the factory.
The casing O-ring forms a pressure-tight seal between the pump casing halves, preventing water from escaping the volute and maintaining the internal pressure needed for efficient flow. When this ring deteriorates — through compression set, chemical exposure, or age — the pump loses prime easily, output drops, and visible leaking at the casing seam may appear. Replacing the Casing O-Ring at the first sign of leakage or during routine pump servicing keeps the pump primed and performing at rated capacity.
For fitment questions or to confirm this part is correct for your application, contact the DHS Equipment team.
Part Details
| Part Number | 0489353850 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Casing O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Centrifugal Pumps | QP402B |
| Centrifugal Pumps | QP402H |
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.
