{"product_id":"rein-ept0151-engine-coolant-reservoir-radiator","title":"Rein EPT0151 Engine Coolant Reservoir - Radiator","description":"\u003ch2\u003eOE Quality Expansion Tank for BMW Cooling Systems\u003c\/h2\u003e\u003cp\u003eThe Rein EPT0151 engine coolant reservoir is an OE-quality expansion tank built for BMW cooling system service. It is produced from virgin plastic to help resist heat-cycle cracking and maintain durable, long-term performance in demanding engine bay conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProduced from virgin plastic meeting or exceeding OE specifications\u003c\/li\u003e\n\u003cli\u003eResists cracking and wear from repeated heat cycles to help prevent coolant loss\u003c\/li\u003e\n\u003cli\u003eDirect-fit design for straightforward installation\u003c\/li\u003e\n\u003cli\u003eManufactured to strict engineering standards for materials and tolerances\u003c\/li\u003e\n\u003cli\u003eRein OE quality expansion tank for BMW 535i, 535i xDrive, 640i, 740i, and related applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt for BMW Fitment and Cooling Reliability\u003c\/h2\u003e\u003cp\u003eRein EPT0151 is an OE-style coolant reservoir designed for application-specific BMW fitment. It serves as the expansion tank in the cooling system, helping maintain proper coolant volume and system stability on vehicles such as the BMW 535i GT, 640i Gran Coupe, and 740Li. This part cross-references BMW 17137601949 and 17137806038 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Expansion Tank Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks caused by cracked or aging reservoir plastic\u003c\/li\u003e\n\u003cli\u003eLoss of coolant from heat-cycle damage\u003c\/li\u003e\n\u003cli\u003eWarning lights or low coolant level concerns\u003c\/li\u003e\n\u003cli\u003eCooling system service needs on BMW 535i, 640i, and 740i models\u003c\/li\u003e\n\u003cli\u003eReplacement of a worn expansion tank during radiator or cooling repairs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Fitment\u003c\/h2\u003e\u003cp\u003eCompatible With: Fits 2013-2019 BMW 640i Gran Coupe, N\/A; Fits 2014-2019 BMW 640i xDrive Gran Coupe, N\/A; Fits 2012-2018 BMW 640i, N\/A; Fits 2014-2018 BMW 640i xDrive, N\/A; Fits 2010-2017 BMW 535i GT, N\/A; Fits 2011-2017 BMW 535i GT xDrive, N\/A; Fits 2014-2016 BMW 535d, N\/A; Fits 2014-2016 BMW 535d xDrive, N\/A; Fits 2011-2016 BMW 535i, N\/A; Fits 2011-2016 BMW 535i xDrive, N\/A; Fits 2012-2016 BMW ActiveHybrid 5, Radiator; Fits 2011-2015 BMW 740i, N\/A; Fits 2015 BMW 740Ld xDrive, N\/A; Fits 2011-2015 BMW 740Li, N\/A; Fits 2013-2015 BMW 740Li xDrive, N\/A; Fits 2013-2015 BMW ActiveHybrid 7, Radiator. Verify the reservoir shape, hose connections, and mounting points against the original part before installation. Proper cooling system bleeding and refill procedures should be followed after replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eRein manufactures this expansion tank to strict material and dimensional standards, using virgin plastic rather than regrind to improve durability and heat-cycle resistance. The result is an OE-quality replacement for BMW cooling system repair on applications including the 535i, 640i, and 740i. Part number EPT0151 is engineered for direct replacement service.\u003c\/p\u003e","brand":"Rein","offers":[{"title":"Default Title","offer_id":52431287025845,"sku":"DFBS-EPT0151","price":83.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/C8_EPT0151_Fro.jpg?v=1777851402","url":"https:\/\/www.partcatalog.com\/products\/rein-ept0151-engine-coolant-reservoir-radiator","provider":"PartCatalog","version":"1.0","type":"link"}