The Multiquip 2024859 O-Ring is a genuine OEM sealing component designed for MQ and STOW diaphragm pump models including MQ-D305, D306, MQ-D306HA, MQ-D206H, SDP-3, SDP-2, and CA90749. Sourced directly from Multiquip, this O-Ring delivers the exact material grade and dimensional tolerancing required to maintain a leak-free seal under the pressure and chemical exposure conditions common to diaphragm pump operation. Confirming the correct part number before ordering is essential on fluid-handling equipment — 2024859 is the verified OEM reference for this application. DHS Equipment stocks genuine Multiquip parts to keep your pump running without compromise.
Key Features
- OEM-Grade Sealing Material — Manufactured to the exact compound specification and durometer rating required for diaphragm pump service, ensuring consistent compression and chemical resistance across the full operating range.
- Drop-In Dimensional Match — Profiles match the OEM groove geometry exactly, seating cleanly without stretching, trimming, or rework during reassembly.
- Broad Diaphragm Pump Coverage — Compatible with MQ-D305, D306, MQ-D306HA, MQ-D206H, SDP-3, SDP-2, and CA90749 models across the MQ and STOW diaphragm pump families.
- Leak Prevention Under Pressure — A correctly installed O-Ring maintains the internal pressure boundary of the pump body, preventing fluid bypass that leads to flow loss and priming failure.
- Fluid-System Safety — On pumps handling fuels, chemicals, or contaminated water, a failed O-Ring introduces leak and fire risk; replacing with a spec-correct OEM component eliminates that exposure.
An O-Ring forms a compression seal between mating surfaces inside the pump body, preventing fluid from bypassing the intended flow path. In a diaphragm pump, these seals are under repeated pressure cycles and constant contact with the pumped media — whether water, mud, or chemical slurry — making material integrity critical. When an O-Ring hardens, cracks, or deforms, the result is internal leakage, loss of prime, reduced output pressure, and potential fluid contamination of surrounding components.
Part Details
| Part Number | 2024859 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
| MQ Diaphragm Pumps | MQ-D306HA |
| STOW Diaphragm Pumps | SDP-3 |
| MQ Diaphragm Pumps | MQ-D206H |
| STOW Diaphragm Pumps | SDP-2 |
| STOW Diaphragm Pumps | CA90749 |
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.
