{"product_id":"stens-new-air-filter-100-586-for-lawn-boy-f-series-engines-1978-replaces-107-4621","title":"Stens New Air Filter 100-586 for Lawn-Boy F Series Engines (1978+) | Replaces 107-4621","description":"\u003ch2\u003ePremium replacement for Lawn-Boy F Series engines\u003c\/h2\u003e\n\u003cp\u003eKeep Lawn-Boy F Series mowers and compact tractors breathing clean air with the Stens 100-586 air filter. Designed for 1978 and newer models, this aftermarket filter mirrors the form and function of the OEM part while offering a practical, cost-conscious alternative. Before you buy, verify the part fits your specific machine to ensure compatibility and a straightforward swap.\u003c\/p\u003e\n\u003ch2\u003eWhat it replaces and compatibility\u003c\/h2\u003e\n\u003cp\u003eThis filter replaces Lawn-Boy 107-4621, giving you a convenient option when converting or refreshing your air intake. It is compatible with Lawn-Boy F Series engines from 1978 and newer, covering a broad range of equipment that uses this standard filter footprint.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Stens\u003c\/li\u003e\n  \u003cli\u003eQty: 1\u003c\/li\u003e\n  \u003cli\u003eReplaces: Lawn-Boy 107-4621\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWidth: 2 1\/2 inches\u003c\/li\u003e\n  \u003cli\u003eLength: 4 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003eHeight: 1 1\/8 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this replacement\u003c\/h2\u003e\n\u003cp\u003eAs an aftermarket option, the 100-586 aims to balance affordability with dependable fit. The compact dimensions align with the common footprint of many Lawn-Boy filters, promoting an easy installation and consistent airflow. In real-world use, regular maintenance cycles—especially before peak mowing seasons—often involve swapping in a fresh filter to help the engine breathe more freely and operate with steadier performance.\u003c\/p\u003e\n\u003ch2\u003eReal-life use cases\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSpring maintenance on Lawn-Boy machines that rely on the F Series intake system.\u003c\/li\u003e\n  \u003cli\u003eSeasonal tune-ups as part of routine service for improved air quality in the intake path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation tips and notes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn off the engine and remove the air box cover before inspection or replacement.\u003c\/li\u003e\n  \u003cli\u003eInspect the housing for debris and clean as needed to ensure a good seal.\u003c\/li\u003e\n  \u003cli\u003eInsert the filter with correct orientation and reseal the air box cover securely.\u003c\/li\u003e\n  \u003cli\u003eRun the engine briefly to confirm there are no leaks and the idle remains steady.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNotes: This is an aftermarket part designed as a compatible, cost-conscious alternative to OEM replacements. Always verify fit with your unit’s model and the filter footprint before purchasing to avoid mismatches.\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 Stens 100-586 air filter fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Lawn-Boy F Series engines, 1978 and newer; replaces Lawn-Boy 107-4621.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How can I verify the part fits my mower before purchase?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check the dimensions: 2 1\/2 x 4 3\/8 x 1 1\/8 inches, and confirm compatibility with your Lawn-Boy F Series model.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Stens","offers":[{"title":"Default Title","offer_id":43987176292486,"sku":"B0013XU2M4","price":13.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/stens-new-air-filter-100-586-closeup.jpg?v=1778835624","url":"https:\/\/patiozora.com\/products\/stens-new-air-filter-100-586-for-lawn-boy-f-series-engines-1978-replaces-107-4621","provider":"PatioZora","version":"1.0","type":"link"}