Description
Overview:
The Prefilter for Stihl FS108/FR108 Brushcutters is a Genuine Stihl part designed to protect the engine by trapping coarse dust and debris before it reaches the main air filter. Made from durable open-cell foam, it is shaped for the correct fit in the air box of these machines to maintain clean, consistent airflow. Used as the first line of defence in the intake system, it helps preserve engine power, starting, and fuel efficiency, especially in dusty mowing and clearing conditions. Built to Stihl specification (OEM 4135 124 1500), this prefilter supports reliable performance and reduces wear on key engine components. Ideal for routine servicing on Stihl brushcutters such as the FS108 and FR108, it is quick to fit and provides dependable protection under site and garden use.
Key Features:
- Genuine Stihl part for assured fit and performance
- Durable foam media sized to the correct profile for the air box
- Captures larger particles to protect the main air filter and engine
- Helps maintain steady airflow, power delivery, and easy starting
- Supports longer intervals between main filter changes
- Simple, quick replacement during regular maintenance
- Suitable for demanding professional and domestic cutting work
- Built to OEM standard (4135 124 1500) for consistent results
Typical Applications:
Used during brushcutting, strimming, and clearing in dusty or dry conditions where grass seeds, chaff, and fine debris are common. Suited to grounds maintenance, landscaping, agriculture, forestry edge work, and estate upkeep. Ideal for users who need reliable engine protection and stable performance across long working days.
Also known as:
Pre-cleaner element, intake foam pad, airbox foam insert, secondary intake filter pad, dust pre-screen, intake protection foam.
Fits Models:
FR 108, FR108, FS 108, FS 88, FS108, FS88
Alternate Part Numbers:
4135-124-1500, 41351241500, SL 1474, SL1474
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