{"product_id":"qisf-schrader-valve-cores-600-pack-nickel-plated-copper-tire-valve-cores-spring-loaded-seal","title":"QISF Schrader Valve Cores 600-Pack — Nickel-Plated Copper Tire Valve Cores, Spring-Loaded Seal","description":"\u003cp\u003e\u003cstrong\u003eQISF 600-piece premium valve cores are nickel-plated, copper-bodied replacements engineered to restore airtight seals for most vehicle and bicycle valve stems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese valve cores provide a cost-effective bulk solution for workshops, fleet managers, DIYers and bike shops that need reliable, standard Schrader-style cores in large quantities. Each core uses a spring-loaded pin with an integrated seal to allow inflation while holding pressure up to the rated limit. The kit is intended for routine replacement, emergency spares, or stocking service bays where quick valve repairs keep vehicles, ATVs, motorcycles and bicycles rolling.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these valve cores stop air leaks?\u003c\/h3\u003e\n\u003cp\u003eEach core contains a fitted rubber seal that compresses against the valve body when installed, while the internal spring-loaded pin closes the passage when not being depressed. That dual-action — mechanical seal plus spring tension — prevents slow leaks and maintains tire pressure between service intervals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNickel-plated copper body resists corrosion for longer sealing life.\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded pin secures closure after inflation.\u003c\/li\u003e\n  \u003cli\u003eIntegrated rubber seal conforms to the valve seat to minimize seepage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and valves are these compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe cores are designed to fit standard Schrader valve stems used across passenger cars, light trucks, many motorcycles, ATVs, most bicycles with Schrader valves, and some electric vehicles. They are not for Presta valves or specialized high-pressure valves without Schrader threads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with standard automotive and bicycle Schrader stems.\u003c\/li\u003e\n  \u003cli\u003eSuitable for motorcycles, ATVs, off-road vehicles and many EV tire valves.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with Presta valve stems or non-standard proprietary valves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance limits and materials should I expect?\u003c\/h3\u003e\n\u003cp\u003eThese cores are constructed from copper with a nickel-plated finish to reduce corrosion and facilitate smooth threading. The product is rated for routine pneumatic use and accepts working pressures commonly encountered in automotive and bicycle tires; always verify pressure limits with your specific tire and vehicle recommendations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCopper core with nickel plating to resist rust and wear.\u003c\/li\u003e\n  \u003cli\u003eSpring and seal designed for standard tire pressures.\u003c\/li\u003e\n  \u003cli\u003eSold in bulk (600 pieces) for frequent replacements or stocking needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install or replace a valve core safely?\u003c\/h3\u003e\n\u003cp\u003eReplacement requires a valve core removal\/installation tool: depress the pin to release residual air, unscrew the old core, insert the new core, and tighten snugly without over-torquing. After installation, check tire pressure and inspect for any signs of leaking around the valve stem.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse a valve-core tool to remove and insert cores safely.\u003c\/li\u003e\n  \u003cli\u003eDepress the pin to bleed pressure before removal to avoid sprayback.\u003c\/li\u003e\n  \u003cli\u003eAfter replacement, inflate to recommended PSI and verify no leaks with soapy water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 600-piece QISF valve core pack is ideal for professional garages, fleet maintenance teams, bike shops, and do-it-yourself enthusiasts who perform frequent tire servicing or need a ready supply of reliable Schrader valve cores. If you run a service operation, manage multiple vehicles, or want a bulk backup for roadside kits and shop inventories, this kit supplies a durable, economical stock of standard replacement cores.\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 valve cores compatible with Presta valves?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These QISF cores fit standard Schrader valve stems only, not Presta valves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many valve cores come in the pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes 600 nickel-plated copper valve cores for bulk replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QISF","offers":[{"title":"Default Title","offer_id":48085530640542,"sku":"B0BNBH52GZ","price":39.81,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/qisf-front-packaging-valve-cores.jpg?v=1785871662","url":"https:\/\/northtrailauto.ca\/products\/qisf-schrader-valve-cores-600-pack-nickel-plated-copper-tire-valve-cores-spring-loaded-seal","provider":"North Trail Auto","version":"1.0","type":"link"}