The Multiquip 0458 Impeller Seal Washer is a genuine OEM component designed for QP2, QP3, and QP4 series trash pumps and centrifugal pumps. This OEM part is sourced directly through Multiquip's authorized supply chain, ensuring exact material grade and dimensional accuracy for a correct seal at the impeller. Verified fitment covers a wide range of Multiquip pump models including QP2TK, QP2TH, QP2TB, QP2TZ, QP3TK, QP3TS, QP3TH, QP3TB, QP3TZ, QP3THX, QP4TK, QP4TH, QP4TB, QP4TKT, QP4TZ, MQ62TK, MQ62TDD, QP402H, QP402B, QPT305SLT, QPT205SLT, QP305SLT, QP205SLT, and QP15HP. When replacing a worn or damaged seal washer, using the correct OEM part eliminates the risk of leakage, pressure loss, or accelerated impeller wear that an incorrect part can cause.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Multiquip's exact material and dimensional specifications, ensuring the washer compresses and seats correctly against the impeller to maintain a leak-free seal under pump operating pressure.
- Direct-Fit Replacement — Drops into the existing impeller seal assembly without modification, matching the original mounting geometry for the QP and MQ pump families.
- Broad Pump Family Coverage — Confirmed fitment across QP2, QP3, QP4, MQ62, QP402, QPT, and QP SLT series trash and centrifugal pump models.
- Protects Impeller and Pump Casing — A correctly functioning seal washer prevents bypass flow around the impeller, maintaining pumping efficiency and protecting internal surfaces from erosive wear.
- Fuel and Fluid Compatibility — Engineered from materials suited to the water, slurry, and debris-laden fluids these pumps are designed to handle, resisting degradation over extended service cycles.
The impeller seal washer sits at the interface between the impeller and the pump casing, creating a controlled sealing surface that prevents fluid from bypassing the impeller and leaking back toward the shaft. When this washer wears or distorts, pumping efficiency drops noticeably — the unit loses prime more easily, output pressure falls, and internal components are exposed to accelerated wear from fluid recirculation. Replacing part 0458 at the first sign of seal degradation restores full pumping performance and protects the broader pump assembly from secondary damage.
Part Details
| Part Number | 0458 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Impeller Seal Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP3TS |
| Trash Pumps | MQ62TK |
| Trash Pumps | MQ62TDD |
| Trash Pumps | QP3THX |
| Trash Pumps | QP4TK |
| Trash Pumps | QP4TB |
| Trash Pumps | QP4TKT |
| Trash Pumps | QP3TK |
| Trash Pumps | QP2TK |
| Trash Pumps | QP3TB |
| Trash Pumps | QP4TZ |
| Trash Pumps | QP3TH |
| Trash Pumps | QP3TZ |
| Trash Pumps | QP2TH |
| Trash Pumps | QP2TB |
| Trash Pumps | QP402H |
| Trash Pumps | QP402B |
| Centrifugal Pumps | QPT305SLT |
| Centrifugal Pumps | QPT205SLT |
| Trash Pumps | QP305SLT |
| Trash Pumps | QP205SLT |
| Trash Pumps | QP2TZ |
| Trash Pumps | QP4TH |
| Trash Pumps | QP15HP |
| International Walk-Behind Power Trowels | J SERIES CHINA |
| International Walk-Behind Power Trowels | B SERIES CHINA |
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.
