Multiquip EM146 Impeller Washer

The Multiquip EM146 Impeller Washer is a genuine OEM component designed for a wide range of Multiquip equipment including QP2TK, QP3TK, QP3THX, QP3TS, QP4TB, QP4TH, QP4TK, QP4TKT, QP4TZ, QPT405SLT, DAC7000SS, DAC7000SSA, DAC7000SSW, DA7000SSA2, DA7000SSA2GH, MRH601DS, and DLW300ES series machines. As a genuine Multiquip OEM part, the EM146 is manufactured to the same standards as the original component, ensuring correct fitment and consistent performance across every compatible unit. Sourced direct and fulfilled by DHS Equipment, this is the same part your machine was built with. Confirm your model before ordering to ensure compatibility.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original specifications, ensuring the correct material grade and dimensional tolerancing for a secure impeller-shaft interface.
• Direct Drop-In Replacement — The EM146 installs in the same position as the original washer, requiring no reworking of surrounding pump or drive components.
• Broad Equipment Compatibility — Fits QP-series trash pumps, QPT405SLT centrifugal pump, DAC/DA7000SS generator sets, MRH601DS roller, and DLW300ES welder series.
• Protects Impeller Seating Integrity — Maintains correct axial spacing at the impeller, preventing wobble, premature wear on the pump housing, and loss of hydraulic efficiency.
• Verified Part Number — Order with confidence: EM146 is the exact Multiquip OEM part number cross-referenced to all listed models.

The impeller washer is a small but critical component located at the impeller-to-shaft connection inside a pump or related drive assembly. It maintains proper axial positioning of the impeller, ensuring the rotating assembly runs true within the pump casing. When this washer is worn, missing, or incorrectly sized, the impeller can shift position, causing reduced flow output, increased vibration, accelerated wear on the pump volute, and potential seal failure. Replacing the EM146 with the correct OEM part restores proper impeller geometry and helps the pump or drive assembly perform as originally intended.

Part Details

Compatibility & Fitment

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.