SIMPERAC 4180-141-0300 Air Filter & Tune-Up Kit for Stihl FS91R / FS91 / KM Engines

SIMPERAC 4180-141-0300 Air Filter Kit for Stihl Trimmers

Keep your Stihl trimmer running at its best with a complete maintenance bundle from SIMPERAC. This all-in-one kit is designed to refresh critical intake, fuel delivery, and ignition components, letting you focus on the task at hand—whether you’re shaping long hedges or clearing brush along the fence line. The kit combines air, fuel, and ignition parts into a single, convenient package, making routine tune-ups simpler and more predictable. While results can vary by model and conditions, many users notice more consistent starts and steadier operation after a refresh of worn parts.

The SIMPERAC 4180-141-0300 kit emphasizes practical, real-world replacement for the most common wear items found in Stihl FS-series and Kombi-engine setups. It’s not a guarantee of performance, but it is a thoughtfully assembled set that supports regular maintenance cycles and helps minimize downtime when you’re preparing equipment for the season ahead.

What’s Included

• 2 air filters
• 2 fuel filters
• 1 spark plug
• 1 fuel line
• 1 primer bulb

Compatibility & Practical Use

• Designed for Stihl FS91R and similar FS-Series weed eaters and trimmers
• Also suitable for related Kombi engines and HT133/KM-series models when performing a general tune-up
• Ideal for routine maintenance, seasonal servicing, or rebuilding starter and fuel systems after exposure to dust and fuel deposits

Why Choose SIMPERAC

This bundle brings together essential components in a single package, making it easier to plan maintenance without chasing parts separately. The included items are chosen for compatibility with Stihl platforms and for straightforward replacement during standard service intervals. While not a magical fix, a refreshed air path, clean fuel flow, and fresh ignition parts can contribute to smoother starts and more reliable operation under typical outdoor-use conditions.

Usage Tips

• Turn off the engine and allow it to cool before replacing parts.
• Inspect old components for excessive wear and replace with the included items as needed.
• Prime the fuel line according to your model’s starting procedure and test for smooth starts.