The Multiquip EM16463 Piston Cup is a genuine OEM component designed for ST-70, LS300GK, and LS450 series equipment. Sourced directly from Multiquip, this piston cup meets the exact material and dimensional standards required for proper sealing and pressure performance across these pump families. It is a direct replacement for the original part, ensuring correct fitment in submersible pump, concrete pump, and Mayco pump applications covered by the EM16463 specification. When you need to restore your pump to full operating condition, starting with a genuine OEM seal component is the right call.
Key Features
- Genuine OEM Seal Material — Manufactured to Multiquip's exact compound and hardness specifications, ensuring the cup compresses and seals correctly under pump operating pressures.
- Direct-Fit Replacement — Dimensioned to match the original piston bore profile, allowing straightforward installation without modification to the cylinder or piston assembly.
- Broad Fitment Coverage — Compatible with ST-70, LS300GK, and LS450 series equipment, covering submersible, concrete, and Mayco pump applications.
- Pressure Integrity Restored — A worn or cracked piston cup causes loss of prime, reduced output volume, and pump cavitation; replacing it with a correctly rated OEM cup restores full displacement and flow consistency.
- Fluid Compatibility — Built to handle the abrasive and chemically variable media these pump families are designed to move, maintaining seal integrity across demanding job conditions.
The piston cup is a flexible sealing element that fits around the piston inside the pump cylinder, creating a pressure-tight barrier that allows the piston stroke to draw fluid in on one side and discharge it on the other. Without an intact piston cup, the pump cannot build or hold the pressure needed to move material effectively, resulting in loss of output and potential damage to downstream components. Inspecting and replacing the piston cup as part of routine pump maintenance is one of the most cost-effective ways to keep pump output consistent and extend the service life of the cylinder assembly.
DHS Equipment is an authorized Multiquip parts dealer. Verify your model and serial number before ordering, or contact our team for fitment assistance.
Part Details
| Part Number | EM16463 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Cup |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST-70 |
| Concrete Pumps | LS300GK |
| Mayco Pumps | LS450 |
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.
