{"product_id":"dorman-m390740-brake-master-cylinder","title":"Dorman M390740 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford and Lincoln Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M390740 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Ford and Lincoln 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 of 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 integrated brake fluid management\u003c\/li\u003e\n\u003cli\u003eFeatures three outlets with specific thread sizes: rearward outlet 7\/16-24, secondary outlets 9\/16-18 and 3\/8-24\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford Blackwood, Expedition, F-150, and Lincoln Navigator models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M390740 master cylinder is crafted from aluminum, providing a lightweight yet sturdy component that resists corrosion and wear. Its 1.25-inch bore diameter is designed to deliver precise hydraulic pressure, essential for maintaining brake system integrity. This unit includes a reservoir and sensor, allowing for seamless integration with the vehicle’s brake fluid monitoring system. The master cylinder features three outlets with specific thread sizes—7\/16-24 for the rearward outlet and 9\/16-18 \u0026amp; 3\/8-24 for secondary outlets—ensuring compatibility with the brake lines of Ford Blackwood, Expedition, F-150, and Lincoln Navigator models. Note that mounting hardware is not included with this part.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in vehicles experiencing spongy or unresponsive brakes\u003c\/li\u003e\n\u003cli\u003eReplaces master cylinders with leaks or internal seal failures\u003c\/li\u003e\n\u003cli\u003eResolves brake warning light activation due to sensor or reservoir issues\u003c\/li\u003e\n\u003cli\u003eAddresses brake pedal sinking or inconsistent brake pedal feel\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability in Ford and Lincoln trucks and SUVs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with your specific Ford or Lincoln model before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eCheck all outlet connections for proper thread engagement and sealing\u003c\/li\u003e\n\u003cli\u003eMounting hardware must be sourced separately as it is not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390740 master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term durability and reliable brake system performance. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use conditions.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792206594229,"sku":"BKKX-M390740","price":122.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390740_Fro.jpg?v=1774997596","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390740-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}