Electronic Module HLA66, HLA86
SKU: Stihl | ST-4859 430 1402
- Regular price
- £90.00 Ex VAT
- £108.00 Inc VAT
- Sale price
- £90.00 Ex VAT
- Regular price
-
- £0.00 £108.00 Inc VAT
Free Delivery Over £75 *
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
Product information & specifications
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
| Brand | STIHL |
|---|---|
| Product Type | Electric Module / Electronic Control Unit |
| Manufacturer Part Number | 4859 430 1402 |
| Alternate Part Number | 4859-430-1402 |
| Construction | Moulded plastic housing with factory PCB assembly |
| Function | Manages electrical control signals and power delivery within the hedge trimmer |
| Suitable For | STIHL HLA 66 and HLA 86 cordless hedge trimmers |
| Part Type | Genuine OEM Replacement Part |
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.
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
| Brand | STIHL |
|---|---|
| Product Type | Electric Module / Electronic Control Unit |
| Manufacturer Part Number | 4859 430 1402 |
| Alternate Part Number | 4859-430-1402 |
| Construction | Moulded plastic housing with factory PCB assembly |
| Function | Manages electrical control signals and power delivery within the hedge trimmer |
| Suitable For | STIHL HLA 66 and HLA 86 cordless hedge trimmers |
| Part Type | Genuine OEM Replacement Part |
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.
Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.

