The Multiquip EM98307 Accumulator Unloader Cartridge Assembly is a genuine OEM component designed for LS400, LS500, LS600, LS600P, LS40D, LS40TD, and LS50TD series hydraulic-driven concrete pumps. As a direct OEM replacement, EM98307 is built to the same specifications as the original factory part, ensuring correct hydraulic pressure management within the pumping circuit. Sourced directly through Multiquip's authorized parts network, this cartridge assembly delivers the exacting fit and function that Mayco concrete pump operators depend on to keep pours moving.
Key Features
- Genuine OEM Hydraulic Precision — Engineered to exact pressure tolerances for the accumulator circuit, ensuring consistent unloader valve response across LS-series pump operation.
- Direct Cartridge Replacement — Installs directly into the existing accumulator housing with no rework to surrounding hydraulic fittings or manifolds.
- Broad LS-Series Fitment — Compatible with LS400, LS500, LS600, LS600P, LS40D, LS40TD, and LS50TD Mayco concrete pumps under the Multiquip portfolio.
- Sustained Output Pressure — A correctly functioning accumulator unloader cartridge maintains stable hydraulic pressure delivery, supporting smooth, uninterrupted concrete pumping cycles.
- Hydraulic System Safety — The unloader cartridge plays a direct role in pressure relief management; using the correct OEM-spec replacement helps prevent unsafe pressure buildup in the hydraulic circuit.
The accumulator unloader cartridge assembly regulates hydraulic pressure within the accumulator system of a concrete pump. It controls when the circuit loads and unloads pressure, acting as the valve mechanism that protects the hydraulic system from overpressure conditions while maintaining the energy needed to drive the pumping action. When this cartridge wears or fails, the pump may experience erratic pressure cycling, reduced output consistency, or unsafe pressure spikes — all of which can interrupt a pour and put strain on surrounding hydraulic components.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | EM98307 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Accumulator Unloader Cartridge Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS600P |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS50TD |
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.
