{"product_id":"moroso-radiator-cap-16-lb-pressure-rated-stainless-spring-brass-retainer-standard-filler-neck-fit","title":"Moroso Radiator Cap 16 lb pressure-rated — stainless spring, brass retainer, standard filler neck fit","description":"\u003cp\u003e\u003cstrong\u003eThe Moroso 63316 is a 16 lb pressure-rated radiator cap built for standard-size filler necks, featuring a stainless steel spring and a solid brass spring retainer for reliable cooling-system pressure control.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for performance and durability, this radiator cap replaces worn or incorrect caps to help maintain the intended pressure in automotive cooling systems. The 16 pound setting is commonly used in performance and upgraded cooling applications where a slightly higher boiling point of coolant is desired. Moroso engineers this cap to the dimensions of standard filler necks, and it ships from the United States in compact packaging.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this radiator cap affect my cooling system performance?\u003c\/h3\u003e\n\u003cp\u003eBy sealing the cooling system at a specific pressure, the cap raises the coolant boiling point which helps the system resist boiling under higher temperature and load. Maintaining correct pressure helps prevent localized vapor pockets and supports consistent coolant circulation under stress.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e16 lb pressure rating increases coolant boiling point compared to lower-rated caps\u003c\/li\u003e\n  \u003cli\u003eStainless steel spring provides consistent pressure response over time\u003c\/li\u003e\n  \u003cli\u003eSolid brass spring retainer resists corrosion where it contacts the spring\u003c\/li\u003e\n  \u003cli\u003eFits standard-size filler necks for broad vehicle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction ensure durability?\u003c\/h3\u003e\n\u003cp\u003eMoroso combines a stainless steel spring with a solid brass spring retainer to reduce corrosion and preserve accurate pressure settings through repeated heating cycles. Robust internal components and a precise seat design are used to maintain a tight seal and long service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel spring resists fatigue and rust\u003c\/li\u003e\n  \u003cli\u003eBrass spring retainer offers reliable corrosion resistance\u003c\/li\u003e\n  \u003cli\u003ePrecision sealing surface minimizes coolant loss and air ingress\u003c\/li\u003e\n  \u003cli\u003eManufactured and packaged in the United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cap fit my vehicle and how do I check compatibility?\u003c\/h3\u003e\n\u003cp\u003eThe Moroso 63316 is intended for standard-size radiator filler necks—the common size used on many cars and performance vehicles. To verify fit, compare your existing cap or filler neck dimensions and the mounting design; if your vehicle uses a standard cap, this unit should install without modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck your current cap for a standard-size profile and retainers\u003c\/li\u003e\n  \u003cli\u003eCompare the 16 lb rating to the OEM or recommended pressure for your cooling system\u003c\/li\u003e\n  \u003cli\u003eMeasure filler-neck opening if unsure, or consult vehicle manual\u003c\/li\u003e\n  \u003cli\u003eEasy, bolt-on replacement for compatible systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain the Moroso 63316 radiator cap?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: when the engine is cold, depress any pressure release and rotate the cap into the filler neck until it seats and locks. Periodically inspect the cap for wear, spring tension, and seal condition, and replace if you notice leaks, corrosion, or a soft spring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall only on a cool engine to avoid steam and burns\u003c\/li\u003e\n  \u003cli\u003eTurn until the cap seats and snaps into place for a secure seal\u003c\/li\u003e\n  \u003cli\u003eInspect annually or during coolant service intervals\u003c\/li\u003e\n  \u003cli\u003eReplace if the spring loosens or the sealing surface is damaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Moroso 63316 16 lb radiator cap is aimed at performance-minded drivers, classic-car restorers, and anyone replacing a worn or improperly rated cap on a vehicle with a standard-size filler neck. It suits applications where a 16 lb pressure setting is desirable and where component longevity and corrosion resistance matter. If you need a dependable, metal-constructed cap made with corrosion-resistant internals and simple fitment for standard necks, this Moroso cap is an appropriate choice.\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: Is the Moroso 63316 compatible with my car's radiator filler neck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it fits standard-size radiator filler necks; compare your current cap's size and style to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Why choose a 16 lb radiator cap over a lower rating?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A 16 lb cap raises coolant boiling point, helping cooling performance under higher loads compared with lower-rated caps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":48086089990302,"sku":"B000CONZ06","price":42.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/moroso-63316-radiator-cap-front.jpg?v=1785884175","url":"https:\/\/northtrailauto.ca\/products\/moroso-radiator-cap-16-lb-pressure-rated-stainless-spring-brass-retainer-standard-filler-neck-fit","provider":"North Trail Auto","version":"1.0","type":"link"}