{"product_id":"dorman-m390389-brake-master-cylinder","title":"Dorman M390389 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford E-250 and E-350 Econoline\u003c\/h2\u003e\u003cp\u003eThe Dorman M390389 brake master cylinder is engineered to restore proper brake hydraulics in Ford E-250 Econoline, E-350 Econoline, and E-350 Econoline Club Wagon models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches for accurate hydraulic control\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for complete brake system integration\u003c\/li\u003e\n\u003cli\u003eEquipped with two outlets: rearward outlet size M18 x 1.5 and secondary outlet thread diameter 9\/16-24\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M390389 brake master cylinder features a 1.25-inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system of Ford E-250 Econoline, E-350 Econoline, and E-350 Econoline Club Wagon vehicles. Its aluminum construction offers enhanced durability and resistance to corrosion, extending the service life of the component. This master cylinder comes with an integrated reservoir and sensor, allowing for seamless monitoring and fluid management within the brake hydraulics system. The unit includes two outlets: a rearward outlet sized M18 x 1.5 and a secondary outlet with a 9\/16-24 thread diameter, ensuring compatibility with the vehicle’s brake lines.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Ford E-250 and E-350 Econoline brake systems\u003c\/li\u003e\n\u003cli\u003eAddresses brake pedal sinking or sponginess due to master cylinder wear\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks from a failing master cylinder reservoir or seals\u003c\/li\u003e\n\u003cli\u003eResolves brake warning light activation caused by sensor malfunction\u003c\/li\u003e\n\u003cli\u003eImproves overall brake responsiveness and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M390389 brake master cylinder requires careful attention to brake fluid handling and bleeding procedures to avoid air in the brake lines. Since mounting hardware is not included, ensure existing hardware is in good condition or obtain replacements as needed. Verify compatibility with Ford E-250 Econoline, E-350 Econoline, and E-350 Econoline Club Wagon models before installation. Proper torque specifications should be followed to secure the master cylinder and prevent leaks.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390389 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable performance under normal operating conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792160882869,"sku":"BKKX-M390389","price":110.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390389_Fro.jpg?v=1774997580","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390389-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}