{"product_id":"lisle-plugs-and-gaskets-repair-kit-5-pc-oversize-thread-plugs-for-13-19mm-idler-pulleys-for-tool-58850","title":"Lisle Plugs and Gaskets Repair Kit — 5-Pc Oversize Thread Plugs for 13–19mm Idler Pulleys, for Tool 58850","description":"\u003cp\u003e\u003cstrong\u003eLisle 58650 is a five-piece plugs and gaskets repair set designed to remove damaged threads and tap new oversize threads to restore a leak-free gasket surface.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit provides the essential replacement plugs and gaskets used with Lisle’s thread-restoration tooling to fix stripped or damaged idler pulley mounting holes. Instead of replacing housings or pulleys, the 58650 set lets technicians re-establish a clean, perpendicular thread that seats gaskets properly, reducing oil or fluid seepage. The parts are intended as replacement components for Lisle tool 58850 and fit a broad range of hex and square-drive requirements encountered in automotive service.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Lisle 58650 set restore damaged threads?\u003c\/h3\u003e\n\u003cp\u003eThe set supplies hardened plugs and matching gaskets that work with Lisle’s tapping fixture to remove stripped threads and install a slightly larger, secure replacement thread. The process recreates a full-depth thread that accepts the plug so the gasket can seal against a true, perpendicular surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes five plugs and gaskets sized for oversize thread repair\u003c\/li\u003e\n  \u003cli\u003eDesigned to be used with Lisle tapping tool 58850 for guided cutting\u003c\/li\u003e\n  \u003cli\u003eRestores thread engagement and allows a proper gasket seat\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizes and fastener types does this set support?\u003c\/h3\u003e\n\u003cp\u003eThe kit is compatible with the range of hex and square-drive sizes commonly found on idler pulleys and mounting bosses. It covers multiple hex dimensions plus both common square drive adapters, so it integrates into existing shop toolsets without extra adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with idler pulleys requiring 13mm–19mm hex sizes\u003c\/li\u003e\n  \u003cli\u003eSupports 3\/8\" and 1\/2\" square drive tool interfaces\u003c\/li\u003e\n  \u003cli\u003eSimplifies repairs across different vehicle makes and pulley types\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy does the tapping method matter for gasket sealing?\u003c\/h3\u003e\n\u003cp\u003eAccurate thread alignment is critical for a gasket to compress evenly and form a reliable seal. The Lisle tapping approach keeps the new thread perpendicular to the gasket surface, minimizing the risk of warped or uneven seating that leads to slow leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTapping tool maintains perpendicular thread orientation to the mating surface\u003c\/li\u003e\n  \u003cli\u003ePrevents angled threads that cause uneven gasket compression\u003c\/li\u003e\n  \u003cli\u003eHelps avoid repeated rehousing or component replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the 58650 set compatible with other Lisle tools and where is it used?\u003c\/h3\u003e\n\u003cp\u003eThe 58650 parts are intended as replacement consumables for Lisle tool 58850 and are broadly applicable in engine accessory and pulley maintenance work. Use them wherever stripped pulley or housing threads need an oversize threaded plug and a reliable gasket seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement components for Lisle tool 58850\u003c\/li\u003e\n  \u003cli\u003eCommonly used on idler pulley mounts and accessory housings\u003c\/li\u003e\n  \u003cli\u003eIdeal for in-shop repairs, fleet maintenance, and automotive technicians\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Lisle 58650 5 Pc. Plugs and Gaskets Set is built for professional mechanics, automotive technicians, and experienced DIYers who want a cost-effective way to repair stripped threads on idler pulleys and accessory mounts. If you already own Lisle tool 58850 or frequently encounter damaged mounting threads, this set supplies the replacement parts needed to complete repairs cleanly and restore proper gasket sealing without replacing the entire component.\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: Does this set work by itself to repair threads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The plugs and gaskets are replacement parts meant to be used with Lisle tool 58850 or a compatible guided tapping fixture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which drive sizes and hexes are supported?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The set supports 13mm–19mm hex sizes and both 3\/8\" and 1\/2\" square drive interfaces.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lisle","offers":[{"title":"Default Title","offer_id":48086085795998,"sku":"B002YKNT0C","price":42.52,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lisle-front-view-kit-packaging.jpg?v=1785883895","url":"https:\/\/northtrailauto.ca\/products\/lisle-plugs-and-gaskets-repair-kit-5-pc-oversize-thread-plugs-for-13-19mm-idler-pulleys-for-tool-58850","provider":"North Trail Auto","version":"1.0","type":"link"}