{"product_id":"dtomi-engine-radiator-overflow-tank-coolant-reservoir-for-bmw-replaces-17137640514-complete-kit-with-cap-level-sensor","title":"Dtomi Engine Radiator Overflow Tank coolant reservoir for BMW (replaces 17137640514) — complete kit with cap \u0026 level sensor","description":"\u003cp\u003e\u003cstrong\u003eDtomi Engine Radiator Overflow Tank is a direct-fit replacement coolant reservoir assembly (tank, cap, and level sensor) designed to restore proper coolant expansion and recovery for compatible BMW models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete coolant expansion tank kit from Dtomi includes the reservoir, pressure cap, and level sensor so you can replace a failing or cracked tank without sourcing separate components. Manufactured to meet OEM fit and material standards, the unit is molded from durable plastic engineered for repeated thermal cycles. The part replaces several factory numbers (including 17137640514 and 17137567462) and fits a wide range of BMW 1 Series, 3 Series, 4 Series derivatives, X1, and Z4 model years—check the compatibility list below before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhich BMW models and part numbers does this Dtomi tank replace?\u003c\/h3\u003e\n\u003cp\u003eThis tank is compatible with numerous BMW chassis and engine variants from mid‑2000s to mid‑2010s. It replaces original equipment part numbers and several aftermarket cross-references so you can match by your vehicle or by the OEM number.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM numbers such as 17137640514, 17137567462, 17137543026, 17137607482 and 1.603-334.\u003c\/li\u003e\n  \u003cli\u003eOther cross-references include 376789751 and EPT0028.\u003c\/li\u003e\n  \u003cli\u003eFits many BMW models: 1 Series (including 128i, 135i), 3 Series E90\/E91\/E92\/E93 (323i, 325i, 328i, 330i, 335i variants), X1 (E84 sDrive and xDrive trims), and Z4 (E89) across listed years and engines.\u003c\/li\u003e\n  \u003cli\u003eAlways verify your vehicle’s year, engine code, and OEM part number prior to purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow hard is it to install the Dtomi coolant reservoir myself?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic under‑hood work: drain the small amount of coolant needed, unplug the level sensor, remove mounting fasteners, swap the tank, and reconnect. The kit arrives with the cap and sensor installed or ready to fit, so you won’t need additional parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes tank, cap, and level sensor—no separate purchases required.\u003c\/li\u003e\n  \u003cli\u003eBolts to existing mounting points and reuses hoses where compatible.\u003c\/li\u003e\n  \u003cli\u003eTypical install tools: socket set, pliers, funnel, and safety gloves.\u003c\/li\u003e\n  \u003cli\u003eIf unsure, have a technician perform the swap to ensure proper sealing and bleeding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and performance features should I expect from this replacement tank?\u003c\/h3\u003e\n\u003cp\u003eDtomi builds the reservoir from high‑grade plastic formulated for thermal stability and resistance to coolant additives. The level sensor included is matched to the housing so the vehicle’s warning and gauge circuits function as before.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable plastic construction engineered for repeated heat cycles and pressure changes.\u003c\/li\u003e\n  \u003cli\u003eFactory-style cap to maintain system pressure rating and venting behavior.\u003c\/li\u003e\n  \u003cli\u003ePre-fitted or included sensor to keep level readings accurate and avoid fault codes.\u003c\/li\u003e\n  \u003cli\u003eManufactured to fit OEM mounting points for a secure, rattle-free installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this Dtomi tank work with my vehicle’s cooling system and sensors?\u003c\/h3\u003e\n\u003cp\u003eWhen matched to the correct part number and vehicle model, the reservoir integrates with the existing cooling hoses, fill neck, and sensor wiring. Confirm the cross-reference numbers and physical connector style to ensure compatibility before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with provided sensor connector types used on listed BMW models.\u003c\/li\u003e\n  \u003cli\u003eDesigned for OEM-style hose connections and fill cap interface.\u003c\/li\u003e\n  \u003cli\u003eCheck your vehicle’s original part number and sensor plug shape to confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Dtomi Engine Radiator Overflow Tank is intended for BMW owners, DIY mechanics, and independent shops replacing cracked, leaky, or malfunctioning coolant expansion tanks on compatible 1 Series, 3 Series, X1, and Z4 vehicles. Choose this kit if you want a complete replacement (tank, cap, sensor) matched to common OEM numbers and built to fit without modifying mounting points—ideal for restoring cooling system function and preventing coolant loss.\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 Dtomi tank include the cap and sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit ships with the coolant reservoir, pressure cap, and level sensor included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I verify this tank fits my BMW?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compare your vehicle’s OEM part number or model\/year against the listed cross-references before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dtomi","offers":[{"title":"Default Title","offer_id":48083081986206,"sku":"B0CXX89SQW","price":58.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dtomi-front-view-reservoir.jpg?v=1785823963","url":"https:\/\/northtrailauto.ca\/products\/dtomi-engine-radiator-overflow-tank-coolant-reservoir-for-bmw-replaces-17137640514-complete-kit-with-cap-level-sensor","provider":"North Trail Auto","version":"1.0","type":"link"}