{"product_id":"lonsda-394018-air-filter-for-b-s-vanguard-engines-john-deere-lg394018jd-compatible-12-5-21-hp","title":"Lonsda 394018 Air Filter for B\u0026S \u0026 Vanguard Engines | John Deere LG394018JD Compatible (12.5-21 HP)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eKeep your outdoor power equipment performing reliably with the Lonsda 394018 air filter. Designed for wide compatibility and solid filtration, this replacement part is a practical addition to regular maintenance, helping engines breathe easier and run smoothly through busy seasons.\u003c\/p\u003e\n\n\u003ch2\u003eWhat it fits and why it matters\u003c\/h2\u003e\n\u003cp\u003eThis filter is listed as a replacement for several Briggs \u0026amp; Stratton codes (including 394018, 394018S, 392642, 5050H, 5050B, 4135) and also matches John Deere variant LG394018JD. For pre-filter compatibility, it aligns with B\u0026amp;S 271271 and 272490 families (including LG272490 and related codes). These cross-compatibilities bring flexibility when sourcing parts for mixed fleets of equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with horizontal L-Head twins and Vanguard OHV engines in the 12.5–21 HP range, covering a broad spectrum of mowers and power units.\u003c\/li\u003e\n  \u003cli\u003eSupports both horizontal and vertical installations, simplifying maintenance across different machine layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProtection and performance\u003c\/h2\u003e\n\u003cp\u003eThe filtration system is designed to impede dust and debris from entering the intake, helping to maintain steady engine performance. The supplier notes that using this part may contribute to longer engine life by reducing contaminants, a potential benefit during regular service cycles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproved air quality inside the intake chamber supports smoother operation and more consistent response.\u003c\/li\u003e\n  \u003cli\u003eDurable filtration media and a robust build help resist wear over multiple replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy choose Lonsda\u003c\/h2\u003e\n\u003cp\u003eWe back this air filter with reliable after-sales support and clear guidance for fitment. While it is not an original Briggs \u0026amp; Stratton part, the unit is designed to align with listed OEM codes and compatible engine families, offering a practical alternative for routine maintenance and part stocking.\u003c\/p\u003e\n\u003cp\u003eTip: Replacing air filters at regular intervals can be part of a broader maintenance routine, alongside other service tasks such as spark plug checks and pre-filter inspections.\u003c\/p\u003e\n\n\u003ch2\u003eNotes and real-world use\u003c\/h2\u003e\n\u003cp\u003eNot manufactured or authorized by Briggs \u0026amp; Stratton Corporation. Before purchase, verify compatibility with your exact model numbers to ensure a proper fit and seal.\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: Is this air filter compatible with my engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits horizontal L-Head and Vanguard OHV engines in the 12.5–21 HP range, including listed B\u0026amp;S and John Deere models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace OEM Briggs \u0026amp; Stratton part codes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it matches the listed OEM codes; not manufactured or authorized by Briggs \u0026amp; Stratton.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lonsda","offers":[{"title":"Default Title","offer_id":43988877639814,"sku":"B09KPS1B5R","price":16.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/lonsda-air-filter-394018-closeup.jpg?v=1778857367","url":"https:\/\/patiozora.com\/products\/lonsda-394018-air-filter-for-b-s-vanguard-engines-john-deere-lg394018jd-compatible-12-5-21-hp","provider":"PatioZora","version":"1.0","type":"link"}