{"product_id":"dorman-603-880-engine-coolant-reservoir-front","title":"Dorman 603-880 Engine Coolant Reservoir - Front","description":"\u003ch2\u003eEngine Coolant Reservoir for BMW Front Applications\u003c\/h2\u003e\u003cp\u003eDorman 603-880 is a replacement engine coolant reservoir built for front-position BMW applications. It is made from plastic and engineered to match the fit and function of the original reservoir, with a twist cap, integrated level sensor, pressurized design, and included mounting bracket and cap.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement engine coolant reservoir for BMW cooling system service\u003c\/li\u003e\n\u003cli\u003ePlastic construction for underhood heat and vibration resistance\u003c\/li\u003e\n\u003cli\u003ePressurized design with a 20.3 maximum pressure rating\u003c\/li\u003e\n\u003cli\u003eTwist-style cap included\u003c\/li\u003e\n\u003cli\u003eLevel sensor included\u003c\/li\u003e\n\u003cli\u003eMounting bracket included; mounting hardware not included\u003c\/li\u003e\n\u003cli\u003eBlack and white reservoir design\u003c\/li\u003e\n\u003cli\u003e1.8 L capacity\u003c\/li\u003e\n\u003cli\u003eDorman 603-880 replacement part number for direct lookup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman coolant reservoir is engineered as a direct replacement for the original expansion tank used on select BMW models. The circular plastic tank is built to handle heat cycling and engine vibration in the engine bay while maintaining the correct coolant storage and pressure characteristics. Dorman 603-880 is a practical choice for BMW 320i, 328i, 428i, 520i, 120i, 220i, 228i, and related front-mounted cooling system applications.\u003c\/p\u003e\u003cp\u003eCross-reference part numbers include Nissens 996262 and URO 17137642158 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or brittle coolant reservoir housing\u003c\/li\u003e\n\u003cli\u003eCoolant leaks from the expansion tank\u003c\/li\u003e\n\u003cli\u003eFaulty reservoir level sensor warnings\u003c\/li\u003e\n\u003cli\u003ePressure loss in the cooling system\u003c\/li\u003e\n\u003cli\u003eFitment issues after replacing a damaged OE tank\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s front-position reservoir layout before ordering. This part includes the cap, level sensor, and mounting bracket, but mounting hardware is not included. Confirm hose routing, sensor connection, and bracket alignment during installation to ensure proper sealing and system operation. Dorman 603-880 is listed for 2011-2019 BMW front applications, including 2012-2018 BMW 320i, 2012-2016 BMW 328i, and 2014-2016 BMW 428i.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2016-2019 BMW 120i, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2019 BMW 220i, front\u003c\/li\u003e\n\u003cli\u003eFits 2016-2019 BMW 420i, front\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 BMW 420i Gran Coupe, front\u003c\/li\u003e\n\u003cli\u003eFits 2016 BMW 420i Gran Coupe, front\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 BMW 520i, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 520i, front\u003c\/li\u003e\n\u003cli\u003eFits 2012-2018 BMW 320i, front\u003c\/li\u003e\n\u003cli\u003eFits 2013-2018 BMW 320i xDrive, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 228i, front\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 228i xDrive, front\u003c\/li\u003e\n\u003cli\u003eFits 2012-2016 BMW 328i, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 328i GT xDrive, front\u003c\/li\u003e\n\u003cli\u003eFits 2013-2016 BMW 328i xDrive, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 428i, front\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 428i Gran Coupe, front\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 428i xDrive, front\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 428i xDrive Gran Coupe, front\u003c\/li\u003e\n\u003cli\u003eFits 2012-2015 BMW 118i, front\u003c\/li\u003e\n\u003cli\u003eFits 2011-2012 BMW 125i, front\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eThis replacement reservoir is manufactured from quality materials and built to match the original part’s fit and function for BMW cooling system service.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52778771677365,"sku":"BKKY-603-880","price":143.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_603880_Ang.jpg?v=1783577576","url":"https:\/\/www.partcatalog.com\/products\/dorman-603-880-engine-coolant-reservoir-front","provider":"PartCatalog","version":"1.0","type":"link"}