STIHL Ignition Module for FS 38, FS 45 & HS 45 Machines - 4140 400 1313 The STIHL Ignition Module for FS 38, FS 45 and HS 45 machines is a genuine OEM replacement part designed to restore reliable spark generation on compatible STIHL two-stroke handheld tools. Built with copper windings, a steel laminate core and a tough epoxy-potted body, this ignition module is engineered to withstand heat, vibration, moisture and regular outdoor working conditions. Manufactured to STIHL original equipment standards, this ignition module generates a consistent, timed spark from the flywheel magnets to support dependable starting, stable idling and smooth running across the rev range. It is ideal for domestic users, landscapers, grounds maintenance teams and workshop technicians repairing compatible STIHL brushcutters, grass trimmers and hedge trimmers with weak spark, no spark, misfire or poor hot-start symptoms. Key Features Genuine STIHL ignition module for assured fit and performance Manufacturer Part Number: 4140 400 1313 Supersedes earlier STIHL references 4140 400 1311 and 4140 400 1309 Epoxy-potted coil construction for durability and moisture resistance Steel laminate core and copper windings for consistent spark generation Provides a strong, timed spark for easy starting and smooth running Factory-set electrical characteristics for compatible STIHL machines Compact module fits standard mounting points for straightforward installation Built to withstand vibration, heat and outdoor service conditions Suitable for routine maintenance, repair and weak/no-spark fault diagnosis Typical Applications This STIHL ignition module is used to restore reliable ignition performance on compatible two-stroke handheld tools used for grass cutting, edging and hedge maintenance. It is ideal when repairing machines with no-start issues, intermittent misfire, weak spark, poor hot starting or rough running caused by a faulty ignition coil or magneto module. Technical Specification Brand STIHL Product Type Ignition Module / Magneto Coil Manufacturer Part Number 4140 400 1313 Supersedes Part Numbers 4140 400 1311, 4140 400 1309 Alternate Part Numbers 4140-400-1309, 4140-400-1311, 41404001309, 41404001311 Construction Epoxy-potted coil with copper windings and steel laminate core Function Generates a timed spark for starting, idling and engine running Suitable For Selected STIHL grass trimmers, brushcutters and hedge trimmers Part Type Genuine OEM Replacement Part Fits Models STIHL FS38 STIHL FS45 STIHL FS45C STIHL FS45L STIHL FS46 STIHL FS46C STIHL HS45 STIHL FS 38 STIHL FS 45 STIHL FS 45 C STIHL FS 45 L STIHL FS 46 STIHL FS 46 C STIHL HS 45 Also Known As STIHL magneto coil STIHL ignition armature STIHL magneto module STIHL armature coil STIHL coil pack STIHL electronic ignition unit STIHL magneto ignition assembly STIHL FS 38 ignition module STIHL FS 45 ignition coil STIHL HS 45 magneto coil Why Choose Genuine STIHL Parts? Genuine STIHL parts are manufactured to match the original specification for fit, ignition timing, electrical performance and durability. Choosing an original STIHL ignition module helps maintain reliable spark generation, dependable starting and stable engine running, reducing the risk of poor fitment, weak spark, misfire or unreliable hot-start performance. Explore More STIHL Spare Parts STIHL Parts Finder Brushcutter & Strimmer Accessories Hedge Trimmer Accessories Sharpening & Maintenance Tools FAQs Is this a genuine STIHL ignition module? Yes, this is a genuine STIHL ignition module manufactured to original equipment standards. What is the part number for this STIHL ignition module? The manufacturer part number is 4140 400 1313. It supersedes earlier STIHL references 4140 400 1311 and 4140 400 1309. Which STIHL machines does this ignition module fit? This ignition module fits selected STIHL machines including FS38, FS45, FS45C, FS45L, FS46, FS46C and HS45 models. What does an ignition module do? An ignition module generates the timed spark required at the spark plug, helping the engine start, idle smoothly and run consistently across the rev range. When should this ignition module be replaced? Replace the ignition module if diagnosis confirms weak spark, no spark, intermittent misfire, poor hot starting or rough running caused by ignition failure.