Multiquip 01328501 Piston 80mm Assembly

The Multiquip 01328501 Piston 80mm Assembly is a genuine OEM component designed for the QP3TZ trash pump series. As a factory-sourced replacement, this assembly is built to the same specifications as the original part, ensuring a correct fit within the pump's displacement chamber. Sourced directly through Multiquip's OEM supply chain, the 01328501 is the part your QP3TZ was built around — not an approximation of it. If you're restoring pump output or addressing a loss of prime, this is the component to start with.

Key Features

• OEM-Grade Dimensional Accuracy — Machined to the exact 80mm bore specification required for correct stroke volume and compression integrity within the pump cylinder.
• Direct-Fit Replacement — Engineered to install into the QP3TZ pump housing the same way the original did, with no rework or adaptation to mating components.
• Confirmed QP3TZ Fitment — Validated for the Multiquip QP3TZ trash pump; verify your model code before ordering to ensure compatibility.
• Restores Full Pumping Capacity — A worn or damaged piston causes a drop in discharge pressure and flow rate; replacing it with the correct 80mm assembly brings output back to spec.
• Fuel System & Displacement Integrity — Correct piston-to-cylinder clearance prevents bypass, overheating, and accelerated wear on surrounding components in the pump drive assembly.

The piston assembly is the core reciprocating component inside the pump's displacement chamber, responsible for drawing fluid in on the intake stroke and expelling it under pressure on the discharge stroke. In a trash pump like the QP3TZ, the piston must maintain a consistent seal against the cylinder wall to generate the suction needed to lift and move water carrying solids and debris. When the piston wears, loses its ring seal, or sustains damage from abrasive material, the pump loses prime easily, output pressure drops, and the machine may fail to move fluid at all — making timely replacement critical to keeping the pump operational.

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.