The Multiquip 0489241780 Volute Casing O-Ring is a genuine OEM sealing component designed for the QP2H and QP2B series centrifugal pumps. As a factory-authorized part, it meets the exact material and dimensional specifications required to maintain a proper seal at the volute casing junction. This O-ring is a direct-fit replacement that installs into the same position as the original, requiring no modification to the housing or mating surfaces. Verify your pump model against the QP2H and QP2B fitment before ordering to ensure compatibility.
Key Features
- Genuine OEM Sealing Material: — Manufactured to the exact elastomer compound and durometer rating specified for the volute casing interface, ensuring consistent compression and a leak-free seal under operating pressure.
- Drop-In Fit for the Volute Casing Groove: — Sized to seat flush in the casing O-ring groove without stretching or pinching, allowing straightforward reassembly during pump service.
- Compatible with QP2H and QP2B Centrifugal Pumps: — Confirmed fitment for both the Honda-powered QP2H and Briggs and Stratton-powered QP2B models in the Multiquip quick-prime centrifugal pump lineup.
- Maintains Full Pump Output: — A correctly seated volute casing O-ring prevents internal pressure loss at the casing joint, allowing the pump to sustain rated flow and prime performance. A degraded O-ring causes leakage, air ingestion, and reduced discharge output.
- Fuel and Fluid Resistance: — Formulated to hold up against prolonged exposure to water and pump-related fluids, resisting swelling, cracking, and compression set over repeated service intervals.
The volute casing O-ring creates a pressure-tight seal between the pump's volute casing halves or casing cover, preventing water from escaping the pumping chamber during operation. Without an intact seal at this joint, the pump loses the internal pressure needed to move water efficiently, which can result in reduced flow rates, loss of prime, or visible leakage around the casing. Replacing this O-ring during routine pump maintenance or any casing disassembly is essential to restoring the pump to full working condition.
Part Details
| Part Number | 0489241780 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Volute Casing O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Centrifugal Pumps | QP2H |
| Centrifugal Pumps | QP2B |
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.
