{"product_id":"freightliner-coolant-reservoir","title":"Freightliner Columbia Coronado Century Class Coolant Reservoir Tank 2001-2007 Replace 603-5201 | BDFHYK","description":"\u003ch2\u003eBDFHYK Engine Coolant Expansion Reservoir Overflow Tank Replacement\u003c\/h2\u003e\u003cp\u003eThis BDFHYK engine coolant expansion reservoir overflow tank is designed as an OE-style replacement for selected Freightliner truck applications. It helps replace an aging, cracked, stained, or leaking coolant reservoir while keeping fitment and OE-number confirmation clear before purchase.\u003c\/p\u003e\u003ch3\u003eFitment Reference\u003c\/h3\u003e\u003cp\u003eCompatible with selected 2001-2007 Freightliner Columbia, Coronado, and Century Class applications listed in the product data. Please confirm your exact year, model, mounting points, hose layout, and original part number before ordering.\u003c\/p\u003e\u003ch3\u003eOE \/ Interchange Reference\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e603-5201\u003c\/li\u003e\n\u003cli\u003eS-20397\u003c\/li\u003e\n\u003cli\u003e0520529000\u003c\/li\u003e\n\u003cli\u003e0523045000\u003c\/li\u003e\n\u003cli\u003e0523045001\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eReference numbers are provided for fitment comparison only. Match your original reservoir or vehicle parts catalog before installation.\u003c\/p\u003e\u003ch3\u003eCommon Replacement Signs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCracked, yellowed, or brittle reservoir plastic\u003c\/li\u003e\n\u003cli\u003eCoolant seepage around the tank body or hose connections\u003c\/li\u003e\n\u003cli\u003eRepeated low coolant level after topping off\u003c\/li\u003e\n\u003cli\u003eSweet coolant smell after driving\u003c\/li\u003e\n\u003cli\u003eCoolant puddles under the vehicle\u003c\/li\u003e\n\u003cli\u003eHard-to-read coolant level marks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore You Buy\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompare your original reservoir with the product images.\u003c\/li\u003e\n\u003cli\u003eCheck hose connections and mounting points.\u003c\/li\u003e\n\u003cli\u003eVerify the OE or interchange number when available.\u003c\/li\u003e\n\u003cli\u003eConfirm whether your setup requires a specific cap, sensor, or hose arrangement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInstall only when the engine is fully cool.\u003c\/li\u003e\n\u003cli\u003eDo not open a hot or pressurized cooling system.\u003c\/li\u003e\n\u003cli\u003eInspect hoses, clamps, radiator cap, thermostat area, and nearby connections during replacement.\u003c\/li\u003e\n\u003cli\u003eRefill and bleed coolant according to the vehicle service procedure.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended if you are not familiar with cooling system service.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout BDFHYK\u003c\/h3\u003e\u003cp\u003eBDFHYK focuses on OE-style replacement parts that help drivers move from vehicle symptoms to the right replacement part with less guesswork.\u003c\/p\u003e","brand":"BDFHYK","offers":[{"title":"Default Title","offer_id":52591590015251,"sku":"BDDLZ-BD-05-07266-NEW","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/6110\/2355\/files\/51p1V89lF-L._AC_SL1500.jpg?v=1762333878","url":"https:\/\/bdfhyk.com\/products\/freightliner-coolant-reservoir","provider":"BDFHYK","version":"1.0","type":"link"}