STIHL Electric Module for HLA 66 & HLA 86 Hedge Trimmers - 4859 430 1402

The STIHL Electric Module for HLA 66 and HLA 86 hedge trimmers is a genuine replacement electronic control unit designed to restore reliable power delivery and control within compatible STIHL cordless long-reach hedge trimmers. Built with a durable moulded housing and factory PCB assembly, this OEM electric module manages the electrical connections and control signals required for smooth, dependable tool operation.

Manufactured to STIHL original equipment standards, this replacement module helps ensure the motor responds correctly to the trigger and safety switch system. It is ideal for professional landscapers, grounds maintenance teams, arborists and domestic users repairing a STIHL HLA 66 or HLA 86 where symptoms such as intermittent power, failure to start, erratic running or power loss may be linked to the control electronics.

Key Features

• Genuine STIHL replacement electric module for assured compatibility and build quality
• Manufacturer Part Number: 4859 430 1402
• Designed specifically for STIHL HLA 66 and HLA 86 hedge trimmers
• Factory PCB assembly provides stable electrical control and power management
• Helps the motor respond correctly to trigger and safety switch inputs
• Durable moulded housing with factory-grade electrical connectors
• Direct replacement part that fits into the original mounting location
• Can help resolve intermittent power, no-start faults and erratic operation
• Suitable for professional workshop repair and routine maintenance
• Supports safe, consistent performance in cordless hedge trimming equipment

Typical Applications

This STIHL electric module is used during servicing or repair of compatible STIHL HLA-series hedge trimmers to restore reliable power delivery and electronic control. It is suitable when diagnosing no-start conditions, intermittent operation, erratic running or power loss traced to the control electronics, making it useful for landscaping businesses, grounds teams and gardeners who rely on consistent hedge trimming performance.

Technical Specification

Fits Models

• STIHL HLA 66
• STIHL HLA 86

Also Known As

• STIHL control unit
• STIHL electronic control board
• STIHL controller module
• STIHL PCB assembly
• STIHL electronics board
• STIHL power controller
• STIHL driver module
• STIHL hedge trimmer ECU
• STIHL control circuit module
• STIHL HLA 66 electric module
• STIHL HLA 86 electric module

Why Choose Genuine STIHL Parts?

Genuine STIHL parts are manufactured to match the original specification for fit, safety, performance and reliability. Choosing an original STIHL electric module helps ensure correct electrical compatibility, stable tool response and dependable operation, reducing the risk of poor fitment or unreliable performance from non-genuine components.

Explore More

• STIHL Spare Parts
• STIHL Parts Finder
• Hedge Trimmer Accessories
• STIHL Battery Parts & Accessories
• Sharpening & Maintenance Tools

FAQs

Is this a genuine STIHL electric module?

Yes, this is a genuine STIHL replacement electric module manufactured to original equipment standards.

What is the part number for this STIHL electric module?

The manufacturer part number is 4859 430 1402. It may also be listed as 4859-430-1402.

Which STIHL hedge trimmers does this electric module fit?

This electric module fits STIHL HLA 66 and STIHL HLA 86 cordless hedge trimmers.

What does the electric module do?

The electric module manages electrical control signals and power delivery, helping the motor respond correctly to the trigger and safety switch system.

When should this electric module be replaced?

Replace the electric module if diagnosis confirms faults such as intermittent power, failure to start, erratic running or power loss are linked to the control electronics.

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