Description
Overview:
This is a genuine Stihl air filter base designed for selected professional chainsaws. It forms the rigid mounting and sealing surface for the air filter, helping to keep dust and debris out of the engine for reliable running and consistent tuning. Manufactured to the original specification (MPN 1129 120 3402), it is a direct replacement for worn, cracked, or warped bases that can cause air leaks and reduced performance. The base is made from durable, fuel‐resistant moulded polymer in a robust black finish, shaped to match the original airbox layout. Suitable for Stihl 020 and 020T models, it restores correct filter alignment and sealing, supporting effective air filtration in demanding cutting environments.
Key Features:
- Genuine Stihl OEM part for correct fit and function
- MPN 1129 120 3402 for easy identification and ordering
- Durable moulded polymer resists vibration, fuel mist, and heat
- Restores a reliable seal between the air filter and intake
- Helps prevent dust ingress that can accelerate engine wear
- Direct replacement using existing fixings and standard filter elements
- Accurate geometry keeps the filter seated and aligned
- Suitable for workshop servicing and routine maintenance
- Supports stable idle, throttle response, and overall engine efficiency
Typical Applications:
Used during servicing or repairs when the original base is cracked, warped, or contaminated, especially on saws working in dusty conditions. Common in arborist and ground forestry work, site maintenance, and landscaping where clean intake air is essential to protect the engine and maintain cutting performance.
Also known as:
Filter holder, filter mount, filter support, air filter backing plate, air cleaner base, airbox base, air filter carrier.
Fits Models:
020, 020T, MS 200, MS 200 T, MS200, MS200T
Alternate Part Numbers:
1129-120-3402, 11291203402
Product Specifications
| L&S Part No. | 1129 120 3402 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11291203402 |
| Unit of Sale | 1 |
| Applications | 020, 020T, MS 200, MS 200 T, MS200, MS200T |
| Fits Brands | Stihl |
| Fits Models | MS200, MS200T | 020, 020T |
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