The Multiquip EM509221 Nut is a genuine OEM fastener designed for LS-series hydraulic-driven concrete pumps, including the LS300GK, LS600P, LS300G, LS300P, and LS300. Sourced directly from Multiquip, this nut meets the exact specifications required for correct assembly and secure operation on these machines. Verified fitment across multiple LS-series models makes EM509221 the right choice when restoring or servicing your concrete pump to original condition.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Multiquip's exact thread pitch, dimensions, and material specification, ensuring the clamping force and torque retention this application demands.
- Drop-In Installation — Engineered as a direct replacement that threads into position without reworking mating hardware or adjoining components on the pump assembly.
- Broad LS-Series Compatibility — Confirmed fit for LS300GK, LS600P, LS300G, LS300P, and LS300 hydraulic-driven concrete pumps.
- Structural Integrity Under Load — A correctly torqued fastener keeps pump components properly secured during high-pressure hydraulic operation; a failed or incorrect nut can lead to loosening, misalignment, or component separation mid-pour.
- Pressure-Circuit Safety Assurance — On hydraulic concrete pump systems, fastener integrity directly affects containment of pressurized components; using the correct OEM nut helps maintain safe operating conditions.
A nut may be one of the smallest components in a concrete pump assembly, but it plays a critical role in holding structural and hydraulic elements securely in place under the sustained pressures of concrete pumping operations. On LS-series hydraulic-driven pumps, fasteners are subject to vibration, hydraulic load cycles, and the stresses of continuous jobsite use, making correct thread engagement and material strength essential. Using an incorrect or worn fastener risks loosening over time, which can compromise pump alignment, cause fluid leaks, or lead to more significant component damage during operation.
For fitment questions or to confirm compatibility with your specific machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | EM509221 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300GK |
| Mayco Pumps | LS600P |
| Mayco Pumps | LS300G |
| Mayco Pumps | LS300P |
| Mayco Pumps | LS300 |
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.
