{"product_id":"dorman-m390309-brake-master-cylinder","title":"Dorman M390309 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford Mustang\u003c\/h2\u003e\u003cp\u003eThe Dorman M390309 brake master cylinder is engineered to restore proper brake hydraulics in your Ford Mustang. Designed with precision, this master cylinder includes a reservoir and sensor to ensure optimal brake system performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for accurate brake fluid monitoring\u003c\/li\u003e\n\u003cli\u003eTwo outlets with M12 x 1.0 thread size for rearward and secondary connections\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 M390309 brake master cylinder is specifically designed for Ford Mustang models, providing a precise fit and reliable operation. Its 1-inch bore diameter ensures consistent hydraulic pressure, while the aluminum construction offers corrosion resistance and long-lasting durability. The included reservoir allows for proper brake fluid storage, and the integrated sensor helps monitor fluid levels to maintain brake system safety. Featuring two outlets with M12 x 1.0 thread pitch, this master cylinder supports standard brake line connections for efficient fluid distribution.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Resolution\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is used to replace worn or damaged units in Ford Mustang brake systems. It addresses several common issues, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpongy or unresponsive brake pedal feel\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from the master cylinder\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation due to sensor faults\u003c\/li\u003e\n\u003cli\u003eReduced hydraulic pressure affecting braking performance\u003c\/li\u003e\n\u003cli\u003eContaminated or deteriorated internal components causing brake failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M390309 master cylinder requires proper brake system bleeding to remove air and ensure optimal performance. Note that mounting hardware is not included, so existing hardware should be inspected and replaced if necessary. Verify thread sizes (M12 x 1.0) for brake line compatibility before installation. It is recommended to consult the vehicle’s service manual for torque specifications and installation procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction and integrated sensor contribute to reliable brake system operation. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components. Refer to official Dorman documentation for complete warranty information.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792151969973,"sku":"BKKX-M390309","price":99.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390309_Fro.jpg?v=1774997569","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390309-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}