{"product_id":"dsnaduo-neoprene-rubber-expansion-plugs-14pc-kit-6-sizes-3-4-1-1-2-tapered-sealing-plugs-oil-resistant-reusable","title":"Dsnaduo Neoprene Rubber Expansion Plugs 14pc Kit — 6 Sizes 3\/4\"–1-1\/2\" Tapered Sealing Plugs, Oil-Resistant Reusable","description":"\u003cp\u003e\u003cstrong\u003eThese are Dsnaduo neoprene rubber expansion (freeze\/frost) plugs — a 14-piece set in six sizes designed to seal engine and automotive service holes from 19mm to 38mm (3\/4\"–1-1\/2\").\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a reliable, reusable rubber stop for coolant passages, exhaust test ports, or general service holes, this Dsnaduo kit gives a range of tapered plugs so you can match hole diameters without cutting or welding. The neoprene compound compresses to form a snug seal and resists oils and moderate heat, making the set practical for garages, home mechanics, fleet maintenance, and emergency roadside repairs.\u003c\/p\u003e\n\n\u003ch3\u003eWhich hole sizes are included and how many of each will I get?\u003c\/h3\u003e\n\u003cp\u003eThe kit supplies six different tapered size ranges to cover holes from about 19mm to 38mm (3\/4\"–1-1\/2\"). Quantities vary by range so you have the common sizes ready.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3 pieces for 19–22mm (3\/4\"–7\/8\") holes\u003c\/li\u003e\n  \u003cli\u003e3 pieces for 22–25mm (7\/8\"–1\") holes\u003c\/li\u003e\n  \u003cli\u003e2 pieces for 25–28mm (1\"–1-1\/8\") holes\u003c\/li\u003e\n  \u003cli\u003e2 pieces for 28–31mm (1-1\/8\"–1-1\/4\") holes\u003c\/li\u003e\n  \u003cli\u003e2 pieces for 31–34mm (1-1\/4\"–1-3\/8\") holes\u003c\/li\u003e\n  \u003cli\u003e2 pieces for 34–38mm (1-3\/8\"–1-1\/2\") holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these rubber expansion plugs work and when should I use them?\u003c\/h3\u003e\n\u003cp\u003eEach plug is tapered so pressing it into a slightly undersized opening compresses the neoprene and creates a pressure-tight seal. They’re intended for temporary or maintenance use: closing coolant passages, blocking exhaust or pressure-test ports, or sealing access holes during repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTapered profile expands to fit a range of diameters\u003c\/li\u003e\n  \u003cli\u003eNeoprene material resists oil, grease, and moderate engine heat\u003c\/li\u003e\n  \u003cli\u003eReusable — remove and reinstall for multiple service cycles\u003c\/li\u003e\n  \u003cli\u003eUseful for pressure testing or preventing fluid loss during work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these safe for engine bays and what are the material limits?\u003c\/h3\u003e\n\u003cp\u003eThese plugs are made from neoprene rubber, which offers good resistance to oils and moderate temperatures commonly found in engine compartments. They are not a permanent replacement for metal freeze plugs or high-temperature seals, so avoid prolonged exposure to extreme heat or corrosive chemicals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for intermittent engine-bay use and general maintenance\u003c\/li\u003e\n  \u003cli\u003eNot meant as a permanent high-temperature exhaust seal\u003c\/li\u003e\n  \u003cli\u003eInspect plugs regularly for hardening or cracking before reuse\u003c\/li\u003e\n  \u003cli\u003eReplace if damaged or deformed to maintain a tight seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I choose the right size and install a plug correctly?\u003c\/h3\u003e\n\u003cp\u003eSelect a plug whose minimum tapered diameter is slightly smaller than the hole and whose expanded range covers the opening. Press the plug straight into the hole and seat it until the flange or widest section contacts the surface to ensure even compression and a tight fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasure hole diameter with calipers or a ruler first\u003c\/li\u003e\n  \u003cli\u003eStart with the smaller plug in the range and push it firmly in place\u003c\/li\u003e\n  \u003cli\u003eUse a blunt driver or wooden dowel to avoid cutting the rubber\u003c\/li\u003e\n  \u003cli\u003eTest for leaks or pressure loss after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This 14-piece Dsnaduo neoprene plug set is aimed at DIY mechanics, professional technicians, fleet maintenance crews, and hobbyists who need a flexible, reusable way to cap service holes, perform pressure tests, or prevent fluid loss during repairs. It’s ideal when a quick, non-permanent seal is required across a range of common hole sizes from 19mm to 38mm.\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 be reused?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the neoprene plugs are reusable if they remain flexible and undamaged; inspect before each reuse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do they work for exhaust openings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They can temporarily seal exhaust test ports but aren’t rated for prolonged high-temperature exhaust exposure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dsnaduo","offers":[{"title":"Default Title","offer_id":67592519418041,"sku":"B09QM67Q52","price":62.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/dsnaduo-front-packaging-14pcs.jpg?v=1790565070","url":"https:\/\/redleafauto.ca\/products\/dsnaduo-neoprene-rubber-expansion-plugs-14pc-kit-6-sizes-3-4-1-1-2-tapered-sealing-plugs-oil-resistant-reusable","provider":"Redleaf Auto","version":"1.0","type":"link"}