{"product_id":"coolant-expansion-tank-08-21-wrx-08-21-sti-1","title":"Moroso Coolant Expansion Tank 08-21 WRX \/ 08-21 STI","description":"\u003ch3\u003eMoroso Coolant Expansion Tank 08-21 WRX \/ 08-21 STI | Fabricated Aluminum | Coolant Reservoir\u003c\/h3\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp\u003eThe Moroso Coolant Expansion Tank is a direct bolt-in replacement designed specifically for Subaru WRX and WRX STI models from 2008 through 2021. This tank serves as a critical component in your vehicle’s cooling system, managing coolant overflow and maintaining proper pressure to prevent overheating. It is ideal for Subaru enthusiasts looking to upgrade from the factory plastic tank, which is prone to cracking and discoloration after prolonged exposure to high temperatures.\u003c\/p\u003e\n\u003cp\u003eCrafted from durable fabricated aluminum, this expansion tank offers superior strength and longevity compared to OEM plastic units. Moroso’s design includes a billet aluminum cap and a provision for the factory siphon hose, ensuring seamless integration without sacrificing functionality. The tank’s finish can be customized through polishing, chroming, painting, or powder coating, allowing owners to tailor the look to their preference—whether for a clean OEM+ appearance or a race-inspired aesthetic.\u003c\/p\u003e\n\u003cp\u003eFor Subaru owners, upgrading to the Moroso expansion tank means enhanced reliability under demanding conditions, especially for those who push their WRX or STI on track days or spirited drives. The aluminum construction resists heat-related failure, helping maintain consistent coolant levels and system pressure. This upgrade supports the longevity of your engine’s cooling system and contributes to peace of mind during aggressive driving or extended use.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures \u0026amp; Specifications\u003c\/h4\u003e\n\u003cp\u003eThis Moroso Coolant Expansion Tank is engineered for 2008-2021 Subaru WRX and WRX STI models and features a fabricated aluminum construction with a billet aluminum cap. Constructed from high-strength aluminum, it delivers enhanced durability and heat resistance for Subaru enthusiasts seeking a reliable and visually customizable coolant reservoir.\u003c\/p\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Moroso\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Coolant Expansion Tank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 63871\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 2008-2010 STI, 2008-2010 WRX, 2011-2014 STI, 2011-2014 WRX, 2015-2021 STI, 2015-2021 WRX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Fabricated Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Raw aluminum (polishable, paintable, chromable, powder coatable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Welded fabricated aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Not specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eKey Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Fabricated aluminum resists cracking and heat damage common in OEM plastic tanks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct bolt-in replacement with factory siphon hose provision ensures hassle-free installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e Versatile finish options allow for personalized aesthetics to match your build\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Maintains consistent coolant pressure and volume under high-heat conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance Support:\u003c\/strong\u003e Ideal for track and performance use where cooling system integrity is critical\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Moroso Coolant Expansion Tank\u003c\/li\u003e\n  \u003cli\u003e1× Billet aluminum cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp\u003eInstallation of the Moroso Coolant Expansion Tank is straightforward for anyone with basic mechanical skills, as it is a direct bolt-in replacement for the factory tank. No special tools are required beyond standard hand tools. The tank includes a provision for the factory siphon hose, ensuring compatibility with stock cooling system plumbing. This part fits all 2008-2021 Subaru WRX and WRX STI models, but it is important to verify fitment for your specific year and trim before purchase. No tuning or modifications are required for installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e DIY-Friendly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModifications Required:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify Compatibility:\u003c\/strong\u003e Confirm fitment for your specific year and trim level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShop with confidence at Subimods—your Subaru parts specialists.\u003c\/p\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":47337410560175,"sku":"63871","price":225.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/3598\/4815\/files\/moroso-coolant-expansion-tank-08-21-wrx-08-21-sti-63871-3937344.jpg?v=1786402332","url":"https:\/\/subimods.com\/products\/coolant-expansion-tank-08-21-wrx-08-21-sti-1","provider":"Subimods.com","version":"1.0","type":"link"}