{"product_id":"moroso-99-05-mazda-miata-coolant-expansion-tank-direct-bolt-in-replacement","title":"Moroso 99-05 Mazda Miata Coolant Expansion Tank - Direct Bolt-In Replacement","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e63781\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 84663637810\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eMoroso 99-05 Mazda Miata Coolant Expansion Tank - Direct Bolt-In Replacement\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Moroso 63781 coolant expansion tank serves as a direct bolt-in replacement for the factory plastic tank on 1999-2005 Mazda Miata models. Crafted from billet aluminum, it offers greater durability and a larger 40-ounce capacity to handle expansion during high-performance driving. This upgrade reduces boil-over risk and maintains consistent cooling on track or street.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Construction:\u003c\/strong\u003e Resists corrosion and cracking far better than OEM plastic, ensuring long-term reliability under heat stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40-Ounce Capacity:\u003c\/strong\u003e Provides 50% more volume than stock 25-ounce tank, accommodating extra coolant for sustained high-RPM operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-In Design:\u003c\/strong\u003e Matches factory mounting points with no modifications, includes OEM-style fittings and pressure cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Delivers clean underhood appearance while protecting against oxidation and wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Baffle:\u003c\/strong\u003e Minimizes sloshing and air pockets for stable coolant levels and improved system efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePre-assembled with cap and hardware for immediate use.\u003c\/li\u003e\n\u003cli\u003eFlush system before install to remove contaminants from prior tank failure.\u003c\/li\u003e\n\u003cli\u003eSpecial order item, allow 3-5 business days for processing if out of stock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eDrain coolant, remove OEM tank using 10mm socket on mounting studs.\u003c\/li\u003e\n\u003cli\u003eUses factory hoses and hardware, torque studs to 5 ft-lbs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2005\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata (NB)\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Moroso?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOver 60 years engineering cooling solutions for racers and enthusiasts.\u003c\/li\u003e\n\u003cli\u003eHigh-strength materials tested in NHRA and SCCA competition.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined components for exact OEM fit and function.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my 2001 Mazda Miata LS?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Moroso 63781 bolts directly to all 1999-2005 Miata NB chassis models including Base, LS and SE without alterations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the tank made from?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Billet 6061-T6 aluminum with black anodized coating for heat resistance and durability over plastic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does installation require special tools?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Basic hand tools suffice, 10mm socket for studs and pliers for hose clamps, completes in under 30 minutes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Ships in 10 x 6 x 6 inch box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.45 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":40751243427919,"sku":"MOR63781","price":241.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/moroso-99-05-mazda-miata-coolant-expansion-tank-direct-bolt-in-replacement-moroso.jpg?v=1776538518","url":"https:\/\/www.blackopsautoworks.com\/products\/moroso-99-05-mazda-miata-coolant-expansion-tank-direct-bolt-in-replacement","provider":"Black Ops Auto Works","version":"1.0","type":"link"}