{"product_id":"a-premium-engine-radiator-coolant-expansion-reservoir-for-ford-transit-2015-2019-21-psi-cap-direct-fit","title":"A-Premium Engine Radiator Coolant Expansion Reservoir for Ford Transit 2015–2019 — 21 PSI Cap, Direct-Fit","description":"\u003cp\u003e\u003cstrong\u003eA-Premium's pressurized coolant expansion reservoir with cap is a direct-fit replacement tank for Ford Transit 150\/250\/350 (2015–2019) that restores proper coolant overflow capacity and system pressure.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement overflow tank is designed to match factory fit and function for Transit models with 3.2L, 3.5L, and 3.7L engines. Constructed from durable plastic and supplied with a spring-loaded twist cap rated to 21 PSI, the A-Premium unit helps the cooling system maintain correct pressure, store excess coolant, and allow controlled return to the radiator as the engine cools. It ships with the tank and cap and uses the same mounting pattern as the OE assembly for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eWill this reservoir fit my Ford Transit?\u003c\/h3\u003e\n\u003cp\u003eYes — this A-Premium reservoir is made to fit 2015–2019 Ford Transit 150, 250, 350, and 350 HD models with the listed engine sizes. It corresponds to several OEM reference numbers so you can cross-check compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Transit-150\/250\/350\/350 HD (2015–2019) 3.2L, 3.5L, 3.7L\u003c\/li\u003e\n  \u003cli\u003eCross-references: 603-844, 671-00361, BK2Z8A080B, DG9Z8100A\u003c\/li\u003e\n  \u003cli\u003eConfirm Year\/Make\/Model selection on the product page prior to purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is this expansion tank built and what does the cap do?\u003c\/h3\u003e\n\u003cp\u003eThe tank is molded from heat- and vibration-resistant plastic engineered for under-hood conditions. The included cap is spring-loaded and rated to a maximum of 21 PSI, which helps preserve proper coolant pressure and controlled overflow behavior under thermal load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial: durable automotive-grade plastic for heat resistance\u003c\/li\u003e\n  \u003cli\u003eCap: spring-loaded twist design, 21 PSI maximum pressure rating\u003c\/li\u003e\n  \u003cli\u003eMounting: two mounting holes matching factory locations for secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical benefits will I notice after installing it?\u003c\/h3\u003e\n\u003cp\u003eReplacing a cracked or leaking reservoir restores the system’s ability to contain and recycle coolant, reducing the risk of air entering the cooling loop and helping the heater core and engine reach intended operating conditions. While it’s not a performance upgrade, a proper reservoir aids consistent cooling system function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores proper coolant containment and overflow control\u003c\/li\u003e\n  \u003cli\u003eHelps maintain system pressure for reliable heating and cooling\u003c\/li\u003e\n  \u003cli\u003eReduces risk of coolant loss and air pockets in the system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what comes in the box?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic vehicle maintenance; the tank uses the factory mounting points and attaches to existing hoses. The package includes the reservoir and the pressure cap, so you receive the main components needed for a direct swap.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContents: 1x reservoir tank, 1x pressurized cap\u003c\/li\u003e\n  \u003cli\u003eMounting: two factory-style holes, direct-fit replacement\u003c\/li\u003e\n  \u003cli\u003eRecommendation: inspect hoses and clamps during replacement and tighten cap to spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This A-Premium coolant expansion reservoir is intended for Ford Transit owners and technicians replacing a worn, cracked, or leaking overflow tank on 2015–2019 Transit-150\/250\/350\/350 HD models with 3.2L–3.7L engines. It’s suited to anyone seeking a direct-fit aftermarket replacement with a factory-style cap and clear OEM cross-reference compatibility, including fleets, repair shops, and do-it-yourself mechanics who want a durable, pressure-rated unit backed by a one-year unlimited-mileage guarantee.\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: Does this tank include the pressure cap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The A-Premium kit includes the reservoir and a spring-loaded twist cap rated to 21 PSI.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it fit my 2017 Ford Transit 350?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This reservoir fits 2015–2019 Transit-350 models with 3.2L, 3.5L, or 3.7L engines, but double-check cross-reference numbers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48082993971358,"sku":"B0C6TWLJTS","price":52.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-expansion-tank-front-view.jpg?v=1785822113","url":"https:\/\/northtrailauto.ca\/products\/a-premium-engine-radiator-coolant-expansion-reservoir-for-ford-transit-2015-2019-21-psi-cap-direct-fit","provider":"North Trail Auto","version":"1.0","type":"link"}