Vanguard / Briggs & Stratton Foam Pre‑Cleaner

Genuine Vanguard / Briggs & Stratton OEM Part: 271794S – a foam pre-cleaner (pre-filter) that adds a first stage of filtration to help reduce large debris reaching the main air filter, supporting engine protection and extending primary filter life. Key Features Type: Foam pre-filter / pre-cleaner (wrap style). Pairs with: Air filter / cleaner elements 393957S and 845090 (selected applications). Genuine OEM: Designed for correct fit and performance on compatible Briggs & Stratton / Vanguard engines. Compatibility Commonly used with 393957S air filter applications and on selected engine variants. If you send your engine Model / Type / Code, we can help confirm compatibility before ordering. Why buy from Mitchell Powersystems? Genuine OEM parts, fast UK dispatch, and expert technical support to help you choose the right part first time.