{"product_id":"yeherit-engine-coolant-expansion-tank-for-bmw-x5-x6-17138621092-with-sensor-cap-heat-resistant-pa","title":"YEHERIT Engine Coolant Expansion Tank for BMW X5\/X6 (17138621092) with Sensor \u0026 Cap, Heat-Resistant PA","description":"\u003cp\u003e\u003cstrong\u003eYEHERIT 17138621092 is a direct-fit engine coolant expansion reservoir with integrated sensor and cap designed to restore proper coolant containment and pressure control on compatible BMW X5\/X6 models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement expansion tank is manufactured from heat-resistant PA plastic and includes the coolant level sensor and pressure cap needed to match original equipment performance. It fits a range of BMW E70\/F85\/F15 and E72\/F86\/E71\/F16 vehicles (model years 2007–2019) and carries multiple OE cross-reference numbers so you can confirm fit before purchase. Built to tolerate engine bay heat, road vibration, and frequent temperature cycling, the tank stores excess coolant during operation and returns it to the radiator as the engine cools, helping the cooling system maintain stable pressure.\u003c\/p\u003e\n\n\u003ch3\u003eWill this coolant reservoir fit my BMW X5 or X6?\u003c\/h3\u003e\n\u003cp\u003eThe YEHERIT 17138621092 is designed to match OEM form and fit for specific BMW X5 and X6 model families produced between 2007 and 2019. Use the OE replacement numbers or your vehicle’s year\/make\/model to verify compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models: X5 (E70, F85, F15 series) and X6 (E72, F86, E71, F16 series).\u003c\/li\u003e\n  \u003cli\u003eSupported engine sizes: 2.0L, 3.0L, 4.4L, 4.8L depending on model.\u003c\/li\u003e\n  \u003cli\u003eOE cross-references: 17137552546, 17138621092, 17137647290, 17138630170, 603-361, 603361.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the tank function within the cooling system?\u003c\/h3\u003e\n\u003cp\u003eThis expansion tank collects coolant that expands as the engine warms and releases excess pressure through the cap and return pathways. When the engine cools, the stored coolant flows back into the radiator, helping to maintain the proper coolant level and system pressure without air ingress.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStores overflow coolant during thermal expansion.\u003c\/li\u003e\n  \u003cli\u003eWorks with the pressure cap and sensor to maintain stable cooling-loop pressure.\u003c\/li\u003e\n  \u003cli\u003ePrevents air pockets by allowing coolant to return to the radiator as temperatures drop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality features does this replacement offer?\u003c\/h3\u003e\n\u003cp\u003eConstructed from durable PA (polyamide) plastic, the tank resists heat and vibration typical of engine compartments. It includes the coolant-level sensor mounting and a matching pressure cap to ease installation and match OEM functionality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat-resistant PA plastic construction for thermal stability.\u003c\/li\u003e\n  \u003cli\u003ePreconfigured sensor port compatible with factory sensors.\u003c\/li\u003e\n  \u003cli\u003eSupplied with a pressure cap engineered to match original specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs there warranty and after-sales support?\u003c\/h3\u003e\n\u003cp\u003eYEHERIT backs this expansion tank with a one-year unlimited-mileage guarantee against manufacturing defects and fitment issues. Customer inquiries are addressed promptly with a 48-hour response window for support and replacement guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year unlimited-mileage warranty for peace of mind.\u003c\/li\u003e\n  \u003cli\u003e48-hour customer service response for fitment or product questions.\u003c\/li\u003e\n  \u003cli\u003eReturn or replacement handled per warranty terms if defects arise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This YEHERIT 17138621092 coolant reservoir is intended for DIY enthusiasts and professional technicians replacing a cracked, leaking, or malfunctioning expansion tank on BMW X5\/X6 models within the stated years. It's especially useful when you need a drop-in OEM-compatible part that includes the sensor interface and correct pressure cap, restoring proper coolant containment and helping the cooling system operate as designed. Always verify fitment with your vehicle identification or OE part numbers before purchase and follow proper coolant handling and disposal practices during installation.\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 coolant level sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The tank includes the sensor mounting\/interface; confirm your vehicle’s sensor plug and wiring match for plug-and-play installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What BMW models and years does it fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits BMW X5 and X6 series from 2007–2019 (E70\/F85\/F15 and E72\/F86\/E71\/F16); verify with OE numbers or fitment tool.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YEHERIT","offers":[{"title":"Default Title","offer_id":67586498035897,"sku":"B0DSFY14GC","price":124.71,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/yeherit-coolant-reservoir-front-view.jpg?v=1790484864","url":"https:\/\/redleafauto.ca\/products\/yeherit-engine-coolant-expansion-tank-for-bmw-x5-x6-17138621092-with-sensor-cap-heat-resistant-pa","provider":"Redleaf Auto","version":"1.0","type":"link"}