The ignition module is one of the most common wear parts on the STIHL BG56 handheld blower, particularly on machines used daily across plant and tool hire fleets or by multiple site operators. When the ignition unit begins to fail, symptoms typically include difficulty starting, an intermittent or weak spark, or the engine cutting out unexpectedly during use - often mistaken for a fuel or carburettor problem. Fitting a genuine replacement ignition module (OEM 4241 400 1318) restores the correct spark timing and strength, getting the blower back to reliable, first-pull starting.
This genuine STIHL part is a direct fit for the BG56 and BG56 C-E, and is also shared with the STIHL SH56 and SH86 shredder vacs, making it a useful part to keep in stock for workshops and hire depots servicing multiple STIHL ground care machines. Using genuine OEM components rather than generic alternatives helps ensure correct fitment, consistent ignition performance, and a longer working life for equipment that's in regular, demanding use.
Features and Benefits
- Genuine STIHL ignition module
- OEM number 4241 400 1318
- Direct replacement for worn or failed ignition units
- Restores consistent spark for reliable starting in all conditions
- Fits STIHL BG56, BG56 C-E, SH56 and SH86 models
- Straightforward bolt-in fitment using standard workshop tools
Top Tips for Diagnosing an Ignition Fault
- Won't start even with fresh fuel and a good spark plug? Test for spark at the plug before assuming a fuel system issue - a weak or absent spark points straight to the ignition module.
- Engine cutting out under load or when hot? This is a classic symptom of a failing ignition unit losing its charge as it heats up, rather than a carburettor or fuel mix problem.
- Always check the spark plug and boot connection first, as a fouled plug or loose lead can mimic ignition module failure and lead to unnecessary part replacement.
- On hire fleet machines, log ignition faults against the machine's serial number - repeated failures on the same unit may indicate a wider engine or charging issue rather than a one-off part fault.
- Confirm your exact model (BG56 vs BG56 C-E vs SH56/SH86) before ordering, as some STIHL ignition modules are shared across models while others are not interchangeable.
