{"product_id":"dorman-603-429-engine-coolant-reservoir","title":"Dorman 603-429 Engine Coolant Reservoir - Front","description":"\u003ch2\u003eOverview of Dorman Engine Coolant Reservoir for Lexus GS300 and GS400\u003c\/h2\u003e\u003cp\u003eThe Dorman 603-429 engine coolant reservoir is designed specifically for Lexus GS300 and GS400 models. Constructed from durable plastic with a brown finish, this reservoir includes a flip top cap and mounting brackets to ensure a secure fit. It is a non-pressurized reservoir that comes with a cap and fan shroud for comprehensive replacement needs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Durable plastic construction\u003c\/li\u003e\n\u003cli\u003eColor: Brown for OEM-style appearance\u003c\/li\u003e\n\u003cli\u003eMounting hardware: Brackets included, hardware not included\u003c\/li\u003e\n\u003cli\u003eMounting holes: 6 for secure installation\u003c\/li\u003e\n\u003cli\u003eCap type: Flip top cap included\u003c\/li\u003e\n\u003cli\u003ePressurized: No, designed as a non-pressurized reservoir\u003c\/li\u003e\n\u003cli\u003ePackage contents: 1 coolant reservoir, 1 cap, and fan shroud\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 603-429 engine coolant reservoir is engineered to meet the specifications of Lexus GS300 and GS400 vehicles. Its plastic construction offers resistance to corrosion and heat, ensuring longevity under typical engine bay conditions. The brown color matches the original equipment reservoir, maintaining the vehicle’s factory look. This reservoir features six mounting holes and includes mounting brackets for a stable and precise fit, although mounting hardware is not included. The flip top cap allows for easy access when checking or refilling coolant levels. As a non-pressurized reservoir, it functions as an overflow tank to safely store excess coolant and maintain proper engine temperature.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for cracked or leaking coolant reservoirs in Lexus GS300 and GS400\u003c\/li\u003e\n\u003cli\u003eSolves coolant overflow and loss issues caused by damaged tanks\u003c\/li\u003e\n\u003cli\u003ePrevents engine overheating by maintaining proper coolant levels\u003c\/li\u003e\n\u003cli\u003eRestores proper coolant system function after reservoir damage\u003c\/li\u003e\n\u003cli\u003eAddresses coolant contamination risks from deteriorated plastic reservoirs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the engine is cool before removing the old reservoir to avoid burns\u003c\/li\u003e\n\u003cli\u003eUse the included mounting brackets and align all six mounting holes for secure fitment\u003c\/li\u003e\n\u003cli\u003eCheck the condition of hoses and clamps during installation and replace if necessary\u003c\/li\u003e\n\u003cli\u003eFill the reservoir with the appropriate coolant type recommended for Lexus GS300 and GS400\u003c\/li\u003e\n\u003cli\u003eVerify the flip top cap is securely closed to prevent leaks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-429 engine coolant reservoir undergoes quality checks to ensure durability and reliability in Lexus GS300 and GS400 applications. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44011151294645,"sku":"BKKY-603-429","price":183.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_603429_Fro.jpg?v=1775008926","url":"https:\/\/www.partcatalog.com\/products\/dorman-603-429-engine-coolant-reservoir","provider":"PartCatalog","version":"1.0","type":"link"}