Multiquip 804798 Engine to Pump Coupler

The Multiquip 804798 Engine to Pump Coupler is a genuine OEM component designed for MQ600H, MQ600HTB, and MQ600HTP trash pumps. Sourced directly through Multiquip's authorized parts network, this coupler is built to the same specification as the original part it replaces. It is a direct-fit replacement for MQ600 series trash pumps, restoring proper driveline engagement without the need for modification. If you're troubleshooting a loss of pump output or irregular drive behavior on your MQ600H series unit, this is a critical component to inspect and replace.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact tolerances for proper torque transfer between the engine and pump assembly, ensuring no loss of drive efficiency.
• Direct-Fit Replacement — Engineered to seat and align exactly as the original, making installation straightforward on MQ600 series trash pumps.
• MQ600 Series Compatibility — Confirmed fit for MQ600H, MQ600HTB, and MQ600HTP trash pumps.
• Maintains Full Pump Output — A worn or failed coupler causes slippage or complete disengagement between the engine and pump, resulting in reduced or no water flow. Replacing it restores full pumping performance.
• Driveline Integrity — As the mechanical link between engine power and pump operation, the coupler must maintain its grip under load — OEM material and geometry ensure it does.

The engine to pump coupler is the mechanical interface that transfers rotational power from the engine shaft to the pump impeller shaft. Without a functioning coupler, the engine runs but the pump cannot move water — making this part essential to any trash pump's operation. Over time, couplers can wear, crack, or deform under the stress of repeated high-torque engagement, particularly in demanding jobsite conditions where trash pumps are run continuously.

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.