{"product_id":"dorman-603-336-engine-coolant-reservoir","title":"Dorman 603-336 Engine Coolant Reservoir - Front","description":"\u003ch2\u003eOverview of Dorman Engine Coolant Reservoir for BMW X5 and Z3\u003c\/h2\u003e\u003cp\u003eThe Dorman 603-336 engine coolant reservoir is designed specifically for BMW X5 and Z3 models. This black plastic coolant reservoir includes a spring loaded twist cap and is engineered to maintain proper coolant pressure and fluid levels in your vehicle's cooling system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurable black plastic construction\u003c\/li\u003e\n\u003cli\u003eIncludes one coolant reservoir and one spring loaded twist cap\u003c\/li\u003e\n\u003cli\u003ePressurized system with a cap maximum pressure rating of 22 psi\u003c\/li\u003e\n\u003cli\u003eTwo mounting holes for secure installation\u003c\/li\u003e\n\u003cli\u003eCap included with the reservoir for a complete replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 603-336 engine coolant reservoir is a direct replacement part compatible with BMW X5 and Z3 vehicles. Made from durable plastic, this reservoir is designed to withstand the heat and pressure of the engine cooling system. The included spring loaded twist cap is rated for a maximum pressure of 22 psi, ensuring the system remains pressurized to prevent coolant loss and overheating. With two mounting holes, the reservoir can be securely attached without the need for additional mounting brackets or hardware, which are not included. This part number 603-336 provides a reliable solution for maintaining proper coolant levels and system pressure.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Coolant Reservoir\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks due to cracked or damaged reservoir tanks\u003c\/li\u003e\n\u003cli\u003eLoss of coolant pressure causing engine overheating\u003c\/li\u003e\n\u003cli\u003eFaulty or missing coolant reservoir caps\u003c\/li\u003e\n\u003cli\u003eCoolant contamination from damaged or worn reservoirs\u003c\/li\u003e\n\u003cli\u003eInadequate coolant level monitoring due to reservoir failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 603-336 engine coolant reservoir requires no additional mounting hardware or brackets, as it uses the existing two mounting holes on compatible BMW X5 and Z3 models. Ensure the old reservoir is fully drained and removed carefully to avoid coolant spillage. When installing the new reservoir, verify the spring loaded twist cap is properly seated and tightened to maintain system pressure. It is recommended to inspect hoses and clamps during installation for any signs of wear or damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 603-336 engine coolant reservoir undergoes quality checks to ensure durability and performance in BMW X5 and Z3 vehicles. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44011132453045,"sku":"BKKY-603-336","price":93.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_603336_Ang.jpg?v=1775008910","url":"https:\/\/www.partcatalog.com\/products\/dorman-603-336-engine-coolant-reservoir","provider":"PartCatalog","version":"1.0","type":"link"}