{"product_id":"dorman-m39447-brake-master-cylinder","title":"Dorman M39447 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford and Lincoln Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M39447 brake master cylinder is engineered to restore proper brake hydraulics in select Ford and Lincoln models. Designed with a durable cast iron construction and a 1.125-inch bore diameter, this master cylinder ensures consistent brake fluid pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford Mustang, Lincoln Continental, and Mark VII models\u003c\/li\u003e\n\u003cli\u003eCast iron master cylinder material for durability\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size 9\/16-18 and secondary outlet thread diameter 7\/16-24\u003c\/li\u003e\n\u003cli\u003eDoes not include mounting hardware or sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M39447 master cylinder features a 1.125-inch bore diameter, which is critical for maintaining proper hydraulic pressure in the brake system. Constructed from cast iron, this part offers strength and resistance to wear. The included reservoir allows for brake fluid containment, while the two outlets provide connections for front and rear brake circuits. The rearward outlet size is 9\/16-18, and the secondary outlet thread diameter is 7\/16-24, matching OEM specifications for precise fitment. Note that mounting hardware and sensors are not included with this part.\u003c\/p\u003e\u003ch2\u003eApplications and Common Repair Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Ford Mustang brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders in Lincoln Continental models\u003c\/li\u003e\n\u003cli\u003eAddresses brake pedal sinking or sponginess in Lincoln Mark VII vehicles\u003c\/li\u003e\n\u003cli\u003eFixes internal leaks causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eResolves inconsistent braking performance due to master cylinder failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M39447 master cylinder requires proper brake system bleeding to remove air and ensure optimal brake function. Since mounting hardware is not included, retain or replace existing hardware as needed. Verify outlet thread sizes (9\/16-18 rearward and 7\/16-24 secondary) to ensure compatibility with brake lines. This part is designed for direct replacement on compatible Ford Mustang, Lincoln Continental, and Mark VII models.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39447 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under normal operating conditions. While mounting hardware and sensors are not included, the part is tested for reliable hydraulic performance. Warranty coverage details should be confirmed at the time of purchase.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789337297077,"sku":"BKKX-M39447","price":125.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39447_Fro.jpg?v=1774997472","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39447-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}