Description
Overview:
This Ignition Module (MPN 1139 400 1307 / 11394001307) is a genuine Stihl OEM coil designed to restore reliable starting and smooth running on 2‐stroke petrol chainsaws. Built with a laminated steel core, copper windings and an epoxy‐potted, moulded housing for durability, it generates the spark energy and timing required by the engine. It features the older style bent connector tag for the stop‐switch lead, ensuring the correct interface on machines that use this configuration. Engineered for direct fit and consistent performance, it is suitable for Stihl MS 181 and MS 181 C models and selected related platforms with the same ignition system. For precise compatibility, it fits saws with serial numbers up to 297491429, making it a dependable replacement when diagnosing no‐spark, weak spark or intermittent misfire faults.
Key Features:
- Genuine Stihl part for assured compatibility, build quality and service life
- Older style bent connector tag for seamless integration on specified serial ranges
- Designed for chainsaws up to serial 297491429 for precise fitment
- Robust epoxy potting and polymer housing resist vibration, heat and moisture
- Stable ignition timing for easier cold and hot starts and cleaner running
- Direct bolt-on replacement with factory mounting geometry
- Supports reliable spark delivery under load for consistent cutting performance
- Works with the machine's existing flywheel magneto system and kill-switch circuit
- Suitable for regular use in demanding forestry, arborist and grounds maintenance tasks
- Install and set to the manufacturer's specified air gap for best results
Typical Applications:
Replacement of a failed or weak ignition coil on Stihl mid-size homeowner and professional chainsaws used for felling, logging, firewood cutting, pruning, storm clearance and site maintenance. Useful where symptoms include no spark, difficult starting, stalling when hot, or misfiring under load.
Also known as:
Ignition coil, magneto coil, armature coil, CDI module, spark ignition module, engine coil, coil assembly, high-tension ignition module.
Fits Models:
MS 171
MS 171 C
MS 181
MS 181 C
MS 211
MS 211 C
Alternate Part Numbers:
1139-400-1307, 11394001307
Product Specifications
| L&S Part No. | 1139 400 1307 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11394001307 |
| Unit of Sale | 1 |
| Applications | MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C, MS171, MS171C, MS181, MS181C, MS211, MS211C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS171, MS171C | MS181, MS181C | MS211, MS211C |
