{"product_id":"moroso-racing-radiator-cap-14-18-psi-low-pressure-63316","title":"Moroso Racing Radiator Cap 14-18 PSI Low Pressure | 63316","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eStock radiator caps are a compromise part — set low enough to work across a wide range of cars, not tuned for the heat a performance engine actually generates. This Moroso cap runs a 14-18 lb pressure rating, raising your system's boiling point so coolant stays liquid and doing its job even when underhood temps climb during hard driving.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eInside, it uses a stainless steel spring instead of the standard-issue steel spring that loses tension over time, so the pressure setting stays accurate cap after cap, season after season. The spring retainer is solid brass, and the cap body is a six-sided (hex) design that's easier to grip and tighten than the smooth round caps most stock systems use — useful when you're working in a tight engine bay with gloves on.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eFitment: Standard-size radiator filler necks, including Moroso filler neck part numbers 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, and 63745.\u003cbr\u003eNote: This cap fits standard-size filler necks generally — not vehicle-specific. Confirm your radiator or filler neck uses a standard-size opening before ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eKey features and benefits\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e14-18 lb pressure rating raises coolant boiling point for better heat management under load\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStainless steel spring holds an accurate pressure setting over time, unlike standard caps that weaken\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSolid brass spring retainer\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSix-sided (hex) cap design for easier gripping and tightening\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFits standard-size radiator filler necks across multiple applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":43037226401888,"sku":"mor63316","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/63316_part.jpg?v=1786536109","url":"https:\/\/www.importimageracing.com\/products\/moroso-racing-radiator-cap-14-18-psi-low-pressure-63316","provider":"Import Image Racing","version":"1.0","type":"link"}