{"product_id":"lonsda-air-filter-394018-for-b-s-vanguard-engines-12-5-21hp","title":"Lonsda Air Filter 394018 for B\u0026S \u0026 Vanguard Engines | 12.5-21HP","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Lonsda Air Filter 394018 is designed as a versatile aftermarket replacement that fits a wide range of Briggs \u0026amp; Stratton and Vanguard engines. It mirrors essential OEM codes while offering reliable filtration to help keep the air path clean during lawn care, landscaping, and small- to mid-size power equipment tasks. Although not an original Briggs \u0026amp; Stratton part, this filter is crafted to align with common engine configurations and installation footprints, making it a convenient option for many compatible machines.\u003c\/p\u003e\n\n\u003ch3\u003eReplacement Codes and Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis filter is built to replace several OEM part numbers, including B\u0026amp;S 394018, 394018S, 392642, 5050H, 5050B, and 4135; John Deere LG394018JD; Toro 21530000; and Craftsman 24150. The included pre-filter options cover B\u0026amp;S 271271 and 272490\/272490S, as well as John Deere LG272490, LG272490S, M84655, and PT8999. With this broad compatibility, you can often swap in one part across multiple machines without hunting for a single OEM SKU.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models span Horizontal (L-Head) Twin and Vertical OHV Vanguard engines in the 12.5-21HP range.\u003c\/li\u003e\n  \u003cli\u003ePre-filter coverage helps capture larger dust particles before they reach the main filter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance and Protection\u003c\/h3\u003e\n\u003cp\u003eThe Lonsda filter emphasizes strong filtration to limit intake of impurities along the air path. In real-world use, this can contribute to steadier air flow and more consistent operation during regular mowing, field work, or startup in dusty environments. While results can vary, the filtration design is intended to support cleaner air entering the engine and may help reduce wear associated with unfiltered air over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRugged construction supports repeated installation and removal for routine service.\u003c\/li\u003e\n  \u003cli\u003eEffective for environments where dust, dirt, or light debris are present in outdoor settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse and After-Sales\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for DIY enthusiasts and professional technicians alike. This aftermarket solution provides a practical alternative to OEM parts while aiming to match common Briggs \u0026amp; Stratton and Vanguard configurations. After-sales support is available to answer questions or concerns, reinforcing a customer-focused approach. Note that the product is not manufactured or authorized by Briggs \u0026amp; Stratton Corporation.\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eNot an original Briggs \u0026amp; Stratton part and not manufactured or authorized by Briggs \u0026amp; Stratton Corporation. This information helps users verify fitment and manage expectations when selecting an aftermarket filtration solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What engines does the Lonsda 394018 air filter fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Briggs \u0026amp; Stratton and Vanguard engines, including 12.5-21 HP L-Head Twin and related models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this filter guarantee engine protection?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Filtration can help reduce intake debris and dust, potentially supporting engine longevity; results vary with usage and maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lonsda","offers":[{"title":"Default Title","offer_id":45740263702714,"sku":"B09KPS1B5R","price":42.93,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/lonsda-air-filter-394018.jpg?v=1774772689","url":"https:\/\/gardencanada.ca\/products\/lonsda-air-filter-394018-for-b-s-vanguard-engines-12-5-21hp","provider":"Garden Canada","version":"1.0","type":"link"}