{"product_id":"dorman-603-5209-engine-coolant-reservoir-front","title":"Dorman 603-5209 Engine Coolant Reservoir - Front","description":"\u003ch2\u003eDorman 603-5209 Engine Coolant Reservoir\u003c\/h2\u003e\u003cp\u003eThis Dorman engine coolant reservoir is a direct replacement for the original cooling system tank, built from metal to handle underhood heat and engine vibration. It includes a spring-loaded twist cap with a 14 psi pressure rating for dependable coolant expansion control.\u003c\/p\u003e\u003cp\u003eCompatible with select vehicle cooling system applications, this reservoir is engineered to match original fit and function for service on models such as Honda Civic and Toyota Corolla where the OE-style coolant tank needs replacement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMetal construction for durability in high-heat engine compartments\u003c\/li\u003e\n\u003cli\u003eBlack finish for a clean OE-style appearance\u003c\/li\u003e\n\u003cli\u003ePressurized design with a 14 psi cap rating\u003c\/li\u003e\n\u003cli\u003eSpring-loaded twist cap included\u003c\/li\u003e\n\u003cli\u003eFour mounting holes for secure installation\u003c\/li\u003e\n\u003cli\u003eEngineered to match original fit and function\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 603-5209 coolant reservoir is manufactured to replace a damaged, cracked, or leaking expansion tank in the cooling system. Its metal construction is selected to withstand vibration and thermal cycling, while the pressurized design helps maintain proper coolant system operation. The included cap is rated at 14 psi and uses a spring-loaded twist style for a secure seal.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application. For buyers searching for a Dorman 603-5209 coolant reservoir, this OE-style replacement supports service needs on vehicles such as Honda Civic and Toyota Corolla when the original reservoir no longer holds pressure or shows physical damage.\u003c\/p\u003e\u003ch2\u003eCommon Reasons for Replacement\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks from a cracked or weakened reservoir\u003c\/li\u003e\n\u003cli\u003eLoss of system pressure from a failing cap or tank seal\u003c\/li\u003e\n\u003cli\u003eVisible heat damage, warping, or corrosion on the original reservoir\u003c\/li\u003e\n\u003cli\u003eCoolant level instability caused by a damaged expansion tank\u003c\/li\u003e\n\u003cli\u003eService replacement after the original part no longer mounts securely\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the reservoir shape, mounting hole count, cap style, and pressure rating before installation. Transfer any required hoses or sensors from the original setup if your vehicle uses them, and inspect the surrounding cooling system for cracks, hardened hoses, or contamination before refilling. After installation, refill with the correct coolant type and bleed the system according to the vehicle service procedure.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this replacement coolant reservoir to match the fit and function of the original part using materials selected for underhood conditions. Part number 603-5209 is built for consistent service in the cooling system and is supplied with the matching cap.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52778771316917,"sku":"FKCX-603-5209","price":228.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_6035209_Fro.jpg?v=1783577517","url":"https:\/\/www.partcatalog.com\/products\/dorman-603-5209-engine-coolant-reservoir-front","provider":"PartCatalog","version":"1.0","type":"link"}