{"product_id":"busy-corner-120-pieces-rubber-vacuum-cap-assortment-10","title":"BUSY-CORNER 120 Pieces Rubber Vacuum Cap Assortment 10","description":"\u003cp\u003e\u003cstrong\u003eBUSY-CORNER 120-piece nitrile rubber vacuum cap assortment packs ten SAE sizes into a plastic case to seal and protect vacuum lines, carburetor ports, and manifold fittings quickly and reliably.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit provides a broad selection of commonly used vacuum cap diameters and lengths, organized in a clear storage box labeled for fast size identification. Each cap is molded from flexible nitrile rubber that resists heat and repeated handling, making them suitable for automotive maintenance, emissions testing, and workshop projects where temporary or long-term sealing of tubing and ports is needed.\u003c\/p\u003e\n\n\u003ch3\u003eWhich sizes are included and how are they measured?\u003c\/h3\u003e\n\u003cp\u003eThe assortment contains 120 caps across ten size\/length combinations, sized by the cap inner diameter to match tubing outer diameter (OD). Sizes range from 1\/8\" OD up to 1\/2\" OD with varying lengths to accommodate short stubs or deeper fittings.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15 pcs 1\/8\" x 9\/16\" (fits 1\/8\" OD tubing)\u003c\/li\u003e\n\u003cli\u003e15 pcs 3\/16\" x 9\/16\" and 15 pcs 3\/16\" x 1-1\/4\"\u003c\/li\u003e\n\u003cli\u003e15 pcs 1\/4\" x 9\/16\" and 10 pcs 1\/4\" x 1-1\/4\"\u003c\/li\u003e\n\u003cli\u003e10 pcs 5\/16\" x 9\/16\" and 10 pcs 5\/16\" x 1-1\/4\"\u003c\/li\u003e\n\u003cli\u003e10 pcs 3\/8\" x 1\" and 10 pcs 3\/8\" x 1-1\/2\"\u003c\/li\u003e\n\u003cli\u003e10 pcs 1\/2\" x 11\/16\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow tough are these caps in workshop and automotive conditions?\u003c\/h3\u003e\n\u003cp\u003eThese vacuum caps are made of durable nitrile rubber, chosen for its flexibility and resistance to moderate heat and oils commonly found in garages. While not rated for extreme industrial temperatures, they hold up well for routine engine bay use, diagnostics, and temporary sealing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNitrile composition resists oil and light fuel exposure\u003c\/li\u003e\n\u003cli\u003eFlexible walls create a snug fit over corresponding OD tubing\u003c\/li\u003e\n\u003cli\u003eRepeated on\/off use without tearing under normal conditions\u003c\/li\u003e\n\u003cli\u003eOrganized plastic case protects inventory and speeds selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat common tasks do these vacuum caps help with?\u003c\/h3\u003e\n\u003cp\u003eUse the caps for capping vacuum lines during pressure or vacuum testing, sealing off carburetor or manifold ports during maintenance, or temporarily blocking hoses during repairs. They’re handy when isolating circuits for troubleshooting or preventing debris entry during disassembly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeal off vacuum hoses during emission system checks\u003c\/li\u003e\n\u003cli\u003eBlock carburetor\/manifold ports when removing components\u003c\/li\u003e\n\u003cli\u003eProtect open fittings from dirt and moisture in storage or transit\u003c\/li\u003e\n\u003cli\u003eProvide quick temporary seals while fabricating or routing lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I choose the right cap for my tubing?\u003c\/h3\u003e\n\u003cp\u003eMatch the cap by its listed inner diameter to the tubing’s outer diameter (OD). If tubing fits tightly over the cap ID, select that cap size; choose a longer cap when you need deeper coverage or extra grip on stubby fittings.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure tube OD with calipers or compare to the labeled kit sizes\u003c\/li\u003e\n\u003cli\u003eUse shorter lengths for shallow ports and longer lengths for recessed fittings\u003c\/li\u003e\n\u003cli\u003eIf in doubt, pick the next larger size for a firmer push-on seal\u003c\/li\u003e\n\u003cli\u003eKeep the storage case labeled to avoid repeated trial-and-error\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The BUSY-CORNER 120-piece vacuum cap assortment is designed for mechanics, hobbyists, fleet technicians, and DIYers who need a comprehensive, ready-to-use collection of vacuum caps. It’s useful for anyone performing engine diagnostics, emissions testing, vacuum system repairs, or routine maintenance who wants a durable, organized set of seal plugs that save time and protect components.\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: Will these caps fit my tubing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Match cap inner diameter to your tubing outer diameter; the kit lists sizes from 1\/8\" to 1\/2\" OD.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these caps resistant to oil and heat?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Made of nitrile rubber, they resist oil and moderate engine-bay heat, suitable for maintenance and testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BUSY-CORNER","offers":[{"title":"Default Title","offer_id":48087047405726,"sku":"B098PZNV56","price":30.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/busy-corner-front-packaging_a382f7d2-183d-44a2-95ff-8fe4b33acb37.jpg?v=1785915172","url":"https:\/\/northtrailauto.ca\/products\/busy-corner-120-pieces-rubber-vacuum-cap-assortment-10","provider":"North Trail Auto","version":"1.0","type":"link"}