HySecurity MX4165, Pin, Strut, Spring
The HySecurity MX4165 spring strut pin is a hardware component used in the HydraWedge SM50 spring strut and lift-assist area. While the part is simple, it works in a high-load section of the wedge mechanism where proper alignment and retention matter. A worn or incorrect pin can contribute to loose linkage movement, uneven spring loading, abnormal noise, or accelerated wear at the connected strut and scissor-joint hardware. This part should be replaced with the correct HySecurity service part rather than a generic pin because diameter, length, shoulder style, and retention method can affect fitment and durability. Inspect the related spring, strut assembly, bushings, bearings, and pivot points when servicing this pin.
What This Part Does
Replacement pin for the spring strut / lift-assist hardware used in select HySecurity HydraWedge SM50 assemblies.
Compatible With
Compatibility is based on currently available HySecurity and distributor part references. Always verify the exact operator model, serial range, configuration, and parts diagram before ordering.
- HySecurity HydraWedge SM50 spring strut hardware where MX4165 is shown in the parts diagram
- HydraWedge SM50 lift-assist and scissor-linkage service involving the original MX4165 pin
- Related spring strut service areas that may also involve MX4166, MX4167, MX4168, MX4169, or MX4195 depending on wear condition
- Not a universal barrier-arm or gate-hinge pin; verify the exact HySecurity exploded parts diagram
Features and Specifications
| Manufacturer | HySecurity / Nice HySecurity |
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| Product Type | Mechanical pin |
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| Part Number | MX4165 |
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| Application | Spring strut / lift-assist hardware |
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| Common Operator/System Reference | HydraWedge SM50 |
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| Included Components | Pin only unless otherwise stated |
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| Related Service Parts | MX4166, MX4167, MX4168, MX4169, MX4195 may be nearby linkage or lift hardware |
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| Notes | Confirm retaining hardware and pin condition during service |
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Also Known As / Related Part Numbers
- MX4165
- HYS-MX4165
- Nice HySecurity MX4165
- HySecurity Pin, Strut, Spring
- HySecurity Spring Strut Pin MX4165
Technician Note
This is an OEM-style HySecurity replacement part. Similar-looking HySecurity parts may differ by operator family, generation, voltage, harness length, handedness, or mechanical position. Use the original part number and the operator parts diagram as the final fitment check.
Before Ordering Checklist
- Confirm the HySecurity model and operator family.
- Match the full part number, including any suffix.
- Compare the original part location, connector, hardware, and mounting style.
- Check surrounding parts for wear or damage before replacing only one component.
- For hydraulic, high-load mechanical, or electrical repairs, use a qualified gate technician.
Professional Advisory
Gate and barrier equipment can move with significant force and may contain stored mechanical energy, hydraulic pressure, or live electrical circuits. Do not bypass safety devices, guards, sensors, or interlocks. If the system has uncontrolled movement, missing guards, damaged wiring, hydraulic leakage, or uncertain compatibility, stop operation and have the equipment inspected by a qualified technician.
Product Questions and Answers
Where is the MX4165 spring strut pin used?
It is used in select HydraWedge SM50 spring strut or lift-assist hardware where HySecurity lists MX4165.
Why would this pin need replacement?
Common reasons include wear, corrosion, bending, missing retaining hardware, or replacement during a linkage or spring-strut rebuild.
Is MX4165 a universal pin?
No. Match the original HySecurity part number and hardware position before ordering.
Should nearby linkage parts be inspected?
Yes. Inspect bushings, bearings, struts, retaining hardware, and the lift spring because wear in one pivot area often affects nearby parts.
Can this be installed without supporting the wedge mechanism?
No. HydraWedge linkage can be under load. A qualified technician should secure and support the system before service.
