Description
Overview:
This Genuine Stihl ignition module is the electronic coil assembly that generates the high-voltage spark required for reliable starting and smooth running of petrol chainsaws. Designed specifically for Stihl MS 231 and MS 251 series machines, it replaces OEM No. 1143 400 1315 for a precise fit. The unit features a durable, resin-encapsulated body with a laminated steel core and copper windings to protect the internal electronics from vibration, dust, and moisture in tough cutting environments. It mounts to the engine near the flywheel and works with the existing flywheel magnet to time the spark correctly under load. Suitable for professional and domestic users, it restores dependable ignition performance on compatible Stihl models without modification.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- Direct replacement for OEM No. 1143 400 1315 with no alterations needed
- Robust, sealed construction resists vibration, dirt, and moisture
- Consistent spark delivery for easy starting and stable idle
- Supports clean combustion to help maintain power and throttle response
- Engineered timing curve for the intended Stihl 2-stroke application
- Helps resolve hard starting, misfires, and cut-outs linked to ignition faults
- Compact, lightweight design to match original mounting points
- Straightforward installation with standard workshop tools
- Suitable for routine maintenance to extend chainsaw service life
Typical Applications:
For restoring dependable ignition on Stihl mid-range chainsaws used for firewood processing, pruning, storm clearance, landscaping, estate work, and light forestry. Ideal when the original coil has failed through age, heat, or impact, or when diagnosing intermittent spark, rough running, or poor hot starts.
Also known as:
Ignition coil, ignition armature, spark module, magneto coil, electronic ignition unit, coil module.
Fits Models:
MS 231, MS 231 C-BE, MS 231 C-BE WoodBoss, MS 231 C-BE Z, MS 251, MS 251 C-BE, MS 251 C-BE Z, MS 251 C-BE Z WoodBoss, MS 251 C-BEQ, MS 251 C-BEQ Z, MS 251 C-E, MS 251-Z, MS231, MS231-Z, MS231Z, MS251, MS251Z
Alternate Part Numbers:
1143 400 1315, 1143-400-1315, 11434001315
Product Specifications
| L&S Part No. | 1143 400 1315 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11434001315 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with MS 231 and MS 251 - Direct replacement for OEM No. 1143 400 1315 - Resin-encapsulated body resists vibration, dust, and moisture - Consistent spark delivery for reliable starting and idle - Suitable for professional and domestic chainsaw use |
| Fits Models | MS231, MS251 |
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