{"product_id":"abn-spark-plug-thread-repair-kit-m14x1-25-14mm-rethreading-set-with-hss-taps-inserts-metal-case","title":"ABN Spark Plug Thread Repair Kit M14x1.25 — 14mm Rethreading Set with HSS Taps \u0026 Inserts, Metal Case","description":"\u003cb\u003eABN's 14mm Spark Plug Thread Repair Rethreading Set is a complete kit for restoring stripped or damaged spark plug threads in engines using M14x1.25 plugs.\u003c\/b\u003e\n\n\u003cp\u003eIf a spark plug hole in your lawn mower, motorcycle, car or small engine has been cross-threaded, worn or damaged, this ABN rethreading kit supplies the taps, inserts and installers to cut a new, reliable thread and install a durable insert. The 14mm metric size with HSS cutters is built for M14x1.25 spark plugs and handles both tapered-seat and gasket-seat configurations. The metal storage case keeps every component organized so you can repair threads on the bench or at the job site.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the kit restore a stripped spark plug hole?\u003c\/h3\u003e\n\u003cp\u003eThe set guides you through enlarging the existing hole, cutting a precisely matched internal thread and seating a threaded insert that accepts the original spark plug. Using the stepped tap keeps the cutter aligned while the insert provides fresh threads that resist wear and burning. The included expander and installer let you fit the insert securely so the plug threads properly and seals consistently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStepped HSS taps for accurate alignment and cutting\u003c\/li\u003e\n  \u003cli\u003eThreaded metal inserts sized for M14x1.25 spark plugs\u003c\/li\u003e\n  \u003cli\u003eInstaller, expander wedge, and tap holder for secure fit\u003c\/li\u003e\n  \u003cli\u003eWorks on tapered or gasket-seat spark plug ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and spark plug types is this compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis ABN kit targets engines that use 14mm spark plugs with a 1.25mm thread pitch. That covers many small engines, motorcycles and automotive applications that accept M14x1.25 plugs. It’s designed to repair both shallow and deeper plug recesses thanks to the included extension and stepped tap design.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eM14x1.25 thread size for many cars, motorcycles and lawn equipment\u003c\/li\u003e\n  \u003cli\u003eTapered-seat and gasket-seal plug compatibility\u003c\/li\u003e\n  \u003cli\u003eExtension tools to reach deep-set plug locations\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel (HSS) for durable cutting performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat tools and parts come in the kit, and how do you use them?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains drill taps, a tap holder, insert installer, expander wedge with handle, a selection of inserts, an Allen wrench and a fitted metal case. The basic procedure is to clean the hole, use the appropriate tap to cut the larger internal thread, screw in the insert, then expand or seat the insert as directed so the original spark plug threads properly into the new insert.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDrill taps and tap holder for cutting new threads\u003c\/li\u003e\n  \u003cli\u003eInsert installer and expander for secure seating\u003c\/li\u003e\n  \u003cli\u003eVariety of inserts to match damaged thread length\u003c\/li\u003e\n  \u003cli\u003eAllen key and molded metal case for storage and transport\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there tips to get the cleanest, longest-lasting repair?\u003c\/h3\u003e\n\u003cp\u003eUse lubricant or grease on the tap flutes to collect metal shavings and prevent clogging, and vacuum out debris during the process. Choose an insert that covers as much of the original plug thread as possible; shorter coverage can trap carbon and make removal harder. Work slowly, clean frequently, and check alignment to avoid creating a new problem while repairing the hole.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply grease or cutting fluid to capture shavings\u003c\/li\u003e\n  \u003cli\u003eSelect inserts that maximize thread coverage\u003c\/li\u003e\n  \u003cli\u003eTap slowly and vacuum debris frequently from the recess\u003c\/li\u003e\n  \u003cli\u003eUse the expander wedge to seat inserts firmly without overstriking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The ABN 14mm Spark Plug Thread Repair Rethreading Set is aimed at mechanics, DIYers, small-engine technicians and vehicle owners who need a reliable way to restore damaged spark plug ports. If you work on motorcycles, lawn equipment, ATVs or cars that use M14x1.25 plugs and want a portable, organized kit with taps, inserts and installers, this set provides the components and guidance to complete a durable thread repair without replacing the cylinder head.\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: Can this kit repair both tapered-seat and gasket-seat spark plug holes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The ABN kit works for both tapered and gasket-seal plug ports using the appropriate stepped tap and inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special equipment to use the kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No specialty tools are required beyond common hand tools; the kit includes tap holders and an installer for manual use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ABN","offers":[{"title":"Default Title","offer_id":55171059155287,"sku":"B079NRY2NK","price":111.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/abn-front-case-open-contents.jpg?v=1790437353","url":"https:\/\/britishgarage.co.uk\/products\/abn-spark-plug-thread-repair-kit-m14x1-25-14mm-rethreading-set-with-hss-taps-inserts-metal-case","provider":"British Garage","version":"1.0","type":"link"}