The Multiquip 0489354020 is a genuine OEM O-Ring Casing Diameter designed for the QP-301TY, QP-301TA, and QP-301TH trash pump models. As an authorized Multiquip OEM part, it is manufactured to the same specifications as the original component that left the factory, ensuring a correct fit at the casing interface. This seal is a direct replacement for worn or damaged casing o-rings on these QP-301 series trash pumps, restoring the integrity of the pump housing. DHS Equipment stocks this part to keep your Multiquip pump running at full capacity.
Key Features
- Precision Sealing Material — Manufactured to OEM compound and dimensional specifications, delivering the correct compression and sealing performance at the pump casing joint.
- Drop-In Casing Fit — Profiles match the original casing groove geometry on QP-301 series pumps, seating cleanly without trimming or adjustment.
- Confirmed Fitment — Verified for QP-301TY, QP-301TA, and QP-301TH Multiquip trash pumps; use part number 0489354020 to confirm your application before ordering.
- Leak-Free Pump Performance — A correctly seated casing o-ring maintains internal pressure and prevents fluid bypass, allowing the pump to move high volumes of water and debris at rated capacity.
- Operational Safety at the Casing — A failed casing seal can allow pressurized fluid to escape at the housing joint; replacing this o-ring promptly keeps the pump operating safely and prevents uncontrolled leakage.
The casing o-ring creates a fluid-tight seal between the pump casing halves or between the casing and volute cover, preventing water and entrained solids from bypassing the impeller or escaping at the housing joint. When this seal degrades — through abrasion from debris, chemical exposure, or simple age hardening — the pump loses prime easily, output volume drops, and fluid can leak at the casing seam. Replacing the 0489354020 O-Ring Casing Diameter restores the sealed housing environment the pump needs to build and hold suction effectively.
Part Details
| Part Number | 0489354020 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring Casing Diameter |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Trash Pumps | QP-301TY |
| MQ Trash Pumps | QP-301TA |
| MQ Trash Pumps | QP-301TH |
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.
