{"product_id":"daptemn-expandable-freeze-rubber-plug-kit-16pcs-8-size-19-44mm-neoprene-alloy-steel-seal","title":"Daptemn Expandable Freeze Rubber Plug Kit, 16PCS 8-Size (19–44mm) Neoprene \u0026 Alloy Steel Seal","description":"\u003cp\u003e\u003cstrong\u003eDaptemn 16PCS Expandable freeze rubber plugs are a ready-to-install neoprene expansion plug kit designed to seal and temporarily repair engine core plugs, tubes and general-purpose holes ranging from 19 mm to 44 mm.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit brings eight different expandable rubber freeze plug sizes with two pieces each, plus the metal hardware needed to anchor them. Each plug uses a neoprene rubber body and alloy steel fasteners that expand inside a hole to create a tight seal. The set is sorted in a plastic storage box so you can quickly find the right size for automotive engine freeze plugs, radiator openings, or general plumbing and fabrication tasks.\u003c\/p\u003e\n\n\u003ch3\u003eWhat sizes are included and which hole diameters do they fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains 16 plugs across eight nominal sizes, arranged to match a steady size range so you can cover many common repair needs. Each size ships with two identical plugs to handle multiple openings or provide a spare.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × 3\/4\" plugs — fits 3\/4\" to 7\/8\" (19–22 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 7\/8\" plugs — fits 7\/8\" to 1\" (22–25 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1\" plugs — fits 1\" to 1-1\/8\" (25–28 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1-1\/8\" plugs — fits 1-1\/8\" to 1-1\/4\" (28–31 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1-1\/4\" plugs — fits 1-1\/4\" to 1-3\/8\" (31–34 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1-3\/8\" plugs — fits 1-3\/8\" to 1-1\/2\" (34–38 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1-1\/2\" plugs — fits 1-1\/2\" to 1-5\/8\" (38–41 mm)\u003c\/li\u003e\n  \u003cli\u003e2 × 1-5\/8\" plugs — fits 1-5\/8\" to 1-3\/4\" (41–44 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these expandable rubber plugs install and stay sealed?\u003c\/h3\u003e\n\u003cp\u003eInstallation is mechanical and simple: insert the plug into the hole, tighten the carriage bolt and hex nut to expand the steel chassis against the neoprene body, creating a compression seal. The expanding hardware increases radial pressure while the O-ring and smooth rubber face help prevent leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInsert plug into opening and hand-start bolt\u003c\/li\u003e\n  \u003cli\u003eTighten hex nut to expand the steel chassis and compress neoprene\u003c\/li\u003e\n  \u003cli\u003eO-ring provides an extra barrier for liquids and gases\u003c\/li\u003e\n  \u003cli\u003eRemovable for future service or replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality features protect against leaks and wear?\u003c\/h3\u003e\n\u003cp\u003eDaptemn freeze plugs use neoprene rubber for elasticity and a smooth, burr-free finish to seat cleanly; alloy steel plates, chassis and carriage bolts provide the expansion force and long-term strength. The combination reduces the chance of oil or coolant seepage when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeoprene rubber body resists oil and many common fluids\u003c\/li\u003e\n  \u003cli\u003eAlloy steel hardware for consistent expansion and retention\u003c\/li\u003e\n  \u003cli\u003eSmooth, defect-free rubber face for reliable contact\u003c\/li\u003e\n  \u003cli\u003eO-ring seal for improved leak resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere else can these plugs be used besides engine freeze plugs?\u003c\/h3\u003e\n\u003cp\u003eWhile designed with automotive core plugs in mind, these expandable rubber plugs work for a wide range of sealing tasks. They are a handy option for temporary repairs, maintenance, fabrication closures or stopping liquid and gas leaks when a permanent repair will be scheduled.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTemporary radiator and coolant passage sealing during diagnostics\u003c\/li\u003e\n  \u003cli\u003ePlumbing or piping test plugs for workshops and garages\u003c\/li\u003e\n  \u003cli\u003eSealing holes in sheet metal, alloy housings, and tanks\u003c\/li\u003e\n  \u003cli\u003eGeneral workshop and construction patching where a removable plug is useful\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Daptemn 16PCS Expandable Freeze Rubber Plugs kit is aimed at DIY mechanics, home garage owners, professional technicians and fabrication shops that need a compact, versatile set of plugs for engine freeze plugs and general sealing jobs. If you routinely service engines, perform cooling-system work, or need a portable assortment of removable seals to temporarily stop leaks, this kit provides multiple sizes, spare units and a dedicated storage box to keep parts organized and ready for action.\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 these plugs seal coolant or oil passages?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — when properly installed the neoprene body and O-ring help stop coolant or oil temporarily, but they are best for repair or testing, not guaranteed as permanent fixes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need tools to install the expandable plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Basic hand tools like a wrench or socket for the hex nut are required to tighten the carriage bolt and expand the plug.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Daptemn","offers":[{"title":"Default Title","offer_id":48085307719838,"sku":"B0D8J57B4Y","price":39.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/daptemn-front-packaging-kit.jpg?v=1785868894","url":"https:\/\/northtrailauto.ca\/products\/daptemn-expandable-freeze-rubber-plug-kit-16pcs-8-size-19-44mm-neoprene-alloy-steel-seal","provider":"North Trail Auto","version":"1.0","type":"link"}