Description
4243 400 1301 STIHL Ignition Module Genuine OEM Ignition System Part
The STIHL Ignition Module (4243 400 1301) is a genuine OEM electronic ignition component designed to deliver precise spark timing and reliable engine performance for select STIHL long-reach hedge trimmers. This ignition module generates the high-voltage spark required for combustion and ensures proper ignition timing under varying engine loads.
Over time, ignition modules may fail due to heat exposure, vibration, electrical wear, or internal breakdown. A faulty ignition module can result in hard starting, no-start conditions, misfiring, or loss of power. Replacing it with the correct OEM part restores factory-specified ignition performance without replacing the entire engine assembly.
Manufactured to STIHL factory specifications, this genuine ignition module ensures correct spark output, reliable timing, and long-term durability under professional operating conditions.
Product Details
OEM Part Number: 4243 400 1301
Brand: STIHL (Genuine OEM)
Part Type: Ignition Module
Application: Electronic ignition / spark generation system
Condition: New Genuine OEM Part
Function
This STIHL ignition module is designed to:
-
Generate high-voltage spark for engine ignition
-
Control precise ignition timing
-
Restore reliable starting performance
-
Replace faulty or intermittent ignition coils
-
Maintain consistent engine power and efficiency
A failing ignition module can cause no-start conditions, misfiring, or reduced engine performance.
Verify Fitment (Recommended)
Before ordering, confirm:
-
OEM part number 4243 400 1301
-
Your unit model and serial number match those listed below
-
Application matches your STIHL illustrated parts diagram
This ignition module applies only to engines up to specific serial numbers always verify serial range before ordering.
Compatibility
This OEM ignition module fits select STIHL long-reach hedge trimmer models within specific serial number ranges:
Long-Reach Hedge Trimmers (Serial Number Specific)
HL 91 K
(Engine up to serial number 514399784)
HL 94
(Engine up to serial number 514368761)
HL 94 K
(Engine up to serial number 514368761)
HL 94 KC-E
(Engine up to serial number 514368761)
(Exact fitment depends on engine serial number always verify using OEM parts diagram and engine identification.)
Installation Notes
-
Disconnect spark plug before servicing
-
Remove engine housing to access ignition module
-
Disconnect kill wire carefully
-
Remove mounting screws and old module
-
Set correct air gap between ignition module and flywheel per STIHL specification
-
Reconnect wiring and reassemble unit
-
Test for proper spark and engine operation
Proper air gap setting is critical for correct ignition performance.
Maintenance Tips
-
Inspect spark plug condition during ignition service
-
Keep flywheel magnets clean and free of debris
-
Check wiring for wear or damage
-
Replace faulty modules promptly to prevent operational issues
-
Always use genuine STIHL OEM ignition components for correct timing and reliability
