Description
Overview:
This is a genuine Stihl prefilter designed for selected backpack blowers and mistblowers. Made from durable open‐cell foam, it sits in front of the main air filter to catch larger dust and debris before they reach the intake. By keeping airflow clean and consistent, it supports reliable running, easier starting, and better protection for the engine and carburettor. It is purpose‐made for the Stihl SR 320 and SR 400, and also suits equivalent blower variants listed below. Built to Stihl specifications (MPN 4203 141 0310), it is a practical maintenance item for machines used in dusty gardens, parks, farms, and worksites. Routine replacement of this prefilter helps extend the service life of the primary filter and the machine as a whole.
Key Features:
- Genuine Stihl part for correct fit and performance (MPN 4203 141 0310)
- Open‐cell foam prefilter traps coarse dust before the main filter
- Helps maintain steady airflow, engine protection, and fuel efficiency
- Supports longer service intervals for the primary air filter
- Robust construction suitable for frequent maintenance cycles
- Straightforward to install and replace during routine servicing
- Suitable for heavy dust environments such as leaf, soil, and dry debris work
- Designed specifically for compatible Stihl SR and BR backpack units
Typical Applications:
Used as part of routine maintenance on Stihl backpack blowers and mistblowers working in dusty conditions. Ideal for landscaping, grounds maintenance, agriculture, construction clean‐ups, and municipal work where dry leaves, soil, or fine debris can clog air intakes. Helps preserve engine health and consistent performance through the season.
Also known as:
Air intake prefilter, foam prefilter pad, pre‐cleaner, intake sponge, blower prefilter, mistblower prefilter, dust prefilter, secondary air filter (coarse stage).
Fits Models:
SR 320, SR 400, BR 320, BR 320 L, BR 400, BR320, BR320L, BR400
Alternate Part Numbers:
4203-141-0310, 42031410310, SL 1460, SL1460
Product Specifications
| L&S Part No. | 4203 141 0310 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42031410310 |
| Unit of Sale | 1 |
| Applications | 400, BR 320, BR 320 L, BR 400, BR320, BR320L, BR400, SR 320, SR 400, SR320, SR400 |
| Machine Type | Blower/Shredders |
| Fits Brands | Stihl |
| Fits Models | BR320, BR400 | SR 320, 400 |
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