Original Stihl BG56 BG56C BG66 BG66C BG85 BG86 SH56 Air Filter 4141 120 1800 B

Original Stihl air filter covers Stihl BG56, BG56C, BG66, BG66C, BG85, BG86 and SH56 leaf blowers. Positioned ahead of the carburettor in the intake tract, it stops dust and debris from reaching the engine internals. Once it becomes blocked or torn, the engine can’t draw in the right volume of clean air, which throws off the air-fuel mixture — you’ll typically notice the engine struggling to start, running without its usual power, or pushing out black smoke. Swapping it out as part of routine maintenance is the simplest way to keep the air supply clean.

Fits specified Stihl models:

• Stihl BG56
• Stihl BG56C
• Stihl BG66
• Stihl BG66C
• Stihl BG85
• Stihl BG86
• Stihl SH56

Replaces part number:

• 4141 120 1800 B