Multiquip 511305 Retainer Plate

The Multiquip 511305 Retainer Plate is a genuine OEM component designed for MQ600-series trash pumps, including the MQ600TD80-TLRB, MQ600TD80-TLRP, MQ600H, MQ600HTB, and MQ600HTP. As a direct OEM replacement, this retainer plate is manufactured to the exact specifications required by Multiquip, ensuring a correct, trouble-free installation. Sourced through DHS Equipment, this is the same part Multiquip supplies through its authorized service network, giving you confidence that the component will perform as intended in the field.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact dimensional and material specifications for the MQ600 pump family, ensuring consistent clamping force and retention integrity.
• Direct-Fit Replacement — Engineered to bolt into position using the existing mounting points on MQ600-series trash pumps with no reworking of surrounding components.
• Broad MQ600-Series Compatibility — Fits MQ600TD80-TLRB, MQ600TD80-TLRP, MQ600H, MQ600HTB, and MQ600HTP trash pump models.
• Structural Retention Under Load — Keeps internal pump components securely indexed during high-volume pumping cycles; a worn or cracked retainer plate can lead to misalignment, vibration, and accelerated wear of adjacent parts.
• Authorized OEM Part — Carries Multiquip's OEM part number 511305, making cross-referencing against service manuals and parts diagrams straightforward for technicians.

The retainer plate is a structural fastening component that holds critical internal assemblies in correct alignment within the pump housing. It works by maintaining the precise positioning of components such as the volute, seal housing, or impeller backing plate so that rotational forces are transferred efficiently and evenly during operation. When a retainer plate becomes cracked, warped, or loses its clamping ability, internal components can shift under load, causing accelerated seal wear, increased vibration, and potential damage to the impeller or pump casing.

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.