{"product_id":"blackjack-4-inch-large-diameter-tire-plug-refills-50-count-box-for-tubeless-high-flow-repairs","title":"Blackjack 4-inch Large-Diameter Tire Plug Refills — 50-Count Box for Tubeless, High-Flow Repairs","description":"\u003cstrong\u003eBlackjack BJK-RE-450 is a 50-count box of 4-inch large-diameter tire plug refills designed for quick, durable puncture repairs on tubeless tires.\u003c\/strong\u003e\n\n\u003cp\u003eKeep a reliable supply of large-diameter plugs on hand with the Blackjack BJK-RE-450. These 4\" refills are made for high-flow punctures and larger cuts commonly encountered in off-road, agricultural, or commercial tire repairs. Packaged as 50 plugs per box, they fit most standard tire plug tools and dispensers used by professionals and serious DIYers.\u003c\/p\u003e\n\n\u003ch3\u003eWhat size punctures do these 4\" plugs repair effectively?\u003c\/h3\u003e\n\u003cp\u003eThese plugs are intended for large-diameter punctures and gashes in tubeless tires where standard small plugs would be inadequate. They provide a thicker sealing mass to fill wider holes and restore a functional seal when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for larger cuts and torn rubber up to the plug diameter.\u003c\/li\u003e\n  \u003cli\u003eAppropriate for off-road, heavy equipment, and agricultural tires.\u003c\/li\u003e\n  \u003cli\u003eNot meant for sidewall repairs where structural integrity is compromised.\u003c\/li\u003e\n  \u003cli\u003eCompatible with most 4\" plug tools and insertion heads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow are these refills installed and how long does installation take?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward using a compatible tire plug tool: clean the puncture, prepare the plug, insert per tool instructions, and trim excess. With practice, a single repair typically takes only a few minutes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires a properly sized insertion tool for 4\" plugs.\u003c\/li\u003e\n  \u003cli\u003ePrepare the puncture by removing debris and roughening the hole as needed.\u003c\/li\u003e\n  \u003cli\u003eInsert plug fully and trim to tire surface for a flush finish.\u003c\/li\u003e\n  \u003cli\u003eAllow a short set time; check for leaks before returning to heavy use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich tires and situations are best suited for Blackjack 4\" plugs?\u003c\/h3\u003e\n\u003cp\u003eThese plugs are best for tubeless tires on vehicles and equipment where large punctures occur. They are commonly used in off-road vehicles, utility tractors, loaders, and other heavy-duty applications that encounter thorns, nails, or larger sharp objects.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks well on tractor and implement tires, ATV\/UTV, and large truck tires.\u003c\/li\u003e\n  \u003cli\u003eSuitable for field or roadside repairs when immediate service is needed.\u003c\/li\u003e\n  \u003cli\u003eHelps avoid costly towing or downtime by enabling on-site fixes.\u003c\/li\u003e\n  \u003cli\u003eFor lifetime or structural damage, seek professional tire replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about compatibility and storage for these refills?\u003c\/h3\u003e\n\u003cp\u003eThe BJK-RE-450 refills are formulated and sized to fit common 4\" plug tools and dispensers; verify tool compatibility before purchase. Store plugs in a cool, dry place out of direct sunlight to maintain flexibility and performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm your insertion tool accepts 4\" diameter refills before use.\u003c\/li\u003e\n  \u003cli\u003eKeep sealed in original box until needed to prevent contamination.\u003c\/li\u003e\n  \u003cli\u003eBest stored between moderate temperatures to preserve elasticity.\u003c\/li\u003e\n  \u003cli\u003eInspect plugs visually before use for debris or deformation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Blackjack BJK-RE-450 is aimed at professional tire technicians, fleet operators, farmers, landscapers, and serious off-road enthusiasts who need a dependable stock of large-diameter tire plugs for fast, on-site puncture repairs. If you manage heavy equipment, operate in rugged terrain, or frequently perform tire maintenance, this 50-pack gives you the capacity to address multiple large punctures without delay.\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: Are these plugs compatible with sidewall punctures?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These refills are for tubeless tread repairs; sidewall damage usually needs tire replacement due to structural risk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many plugs come per box and what size are they?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each box contains 50 plugs, each a 4-inch large-diameter refill designed for wider punctures.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Blackjack","offers":[{"title":"Default Title","offer_id":48085966946462,"sku":"B07MCYBY16","price":42.61,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/blackjack-bjk-re-450-front-box.jpg?v=1785881698","url":"https:\/\/northtrailauto.ca\/products\/blackjack-4-inch-large-diameter-tire-plug-refills-50-count-box-for-tubeless-high-flow-repairs","provider":"North Trail Auto","version":"1.0","type":"link"}