{"product_id":"dorman-603-5124-engine-coolant-reservoir","title":"Dorman 603-5124 Engine Coolant Reservoir","description":"\u003ch2\u003eEngine Coolant Reservoir Replacement\u003c\/h2\u003e\u003cp\u003eDorman 603-5124 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It is engineered to match the original part’s fit and function for service on compatible vehicles, including make\/model applications such as Ford and International platforms where this reservoir style is used.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePlastic construction for coolant system service\u003c\/li\u003e\n\u003cli\u003eNatural color reservoir body\u003c\/li\u003e\n\u003cli\u003eIrregular shape with 8 mounting holes\u003c\/li\u003e\n\u003cli\u003eMounting brackets included\u003c\/li\u003e\n\u003cli\u003ePressurized coolant cap included\u003c\/li\u003e\n\u003cli\u003eCap maximum pressure rating: 15\u003c\/li\u003e\n\u003cli\u003eMaximum capacity: 10.2 L; working capacity: 8.8 L\u003c\/li\u003e\n\u003cli\u003eNo level sensor included\u003c\/li\u003e\n\u003cli\u003eDorman part number 603-5124\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman coolant reservoir is made to replace a damaged or leaking expansion tank in the engine cooling system. The reservoir is designed from quality materials to withstand heat cycling and vibration, and its form is engineered to align with the original mounting and hose connection layout. For buyers searching for an engine coolant reservoir for Ford or International truck applications, Dorman 603-5124 provides an OE-style replacement solution with the cap included and pressurized cooling system compatibility.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 502.927, 575.10317) for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems It Can Help Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant loss from a cracked or aging reservoir\u003c\/li\u003e\n\u003cli\u003eVisible leaks around the tank body or seams\u003c\/li\u003e\n\u003cli\u003ePressure loss caused by a worn reservoir cap\u003c\/li\u003e\n\u003cli\u003eCooling system service issues after plastic tank deterioration\u003c\/li\u003e\n\u003cli\u003eFitment problems when replacing a damaged OE coolant bottle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the reservoir shape, mounting hole count, and pressurized cap specification before installation. Transfer any reusable hoses or fittings from the original setup as needed, and inspect the surrounding cooling system for cracks, hardened hoses, or contamination before refilling. Confirm the vehicle’s cooling system is properly bled after installation to reduce trapped air.\u003c\/p\u003e\u003cp\u003eCompatible With select Ford and International applications that use this reservoir design. Fits vehicle-specific cooling system layouts rather than universal applications. Dorman 603-5124 should be matched to the original reservoir configuration before purchase.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this replacement coolant reservoir to match original fit and function using materials selected for underhood durability. The part is built for direct replacement service in the cooling system and includes the pressurized cap specified in the product data.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52778771120309,"sku":"FKCX-603-5124","price":351.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_6035124_Fro.jpg?v=1783577481","url":"https:\/\/www.partcatalog.com\/products\/dorman-603-5124-engine-coolant-reservoir","provider":"PartCatalog","version":"1.0","type":"link"}