{"product_id":"dorman-m390450-brake-master-cylinder","title":"Dorman M390450 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford Escort and Mercury Tracer\u003c\/h2\u003e\u003cp\u003eThe Dorman M390450 brake master cylinder is designed specifically for Ford Escort and Mercury Tracer models, providing precise hydraulic control for your vehicle's braking system. This aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.938 inches for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for fluid storage and sensor for brake system monitoring\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter of 10 mm\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 M390450 brake master cylinder is engineered to meet the hydraulic requirements of Ford Escort and Mercury Tracer vehicles. Its 0.938-inch bore diameter ensures proper fluid displacement, while the aluminum construction offers strength and resistance to wear and corrosion. The included reservoir allows for adequate brake fluid storage, and the integrated sensor supports brake system diagnostics. Featuring two outlets with precise thread specifications (M10 x 1.0 rearward outlet and 10 mm secondary outlet), this master cylinder is designed for direct replacement in compatible models.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord Escort\u003c\/li\u003e\n\u003cli\u003eMercury Tracer\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is intended for use in brake hydraulic systems requiring a master cylinder with the specified bore diameter and outlet thread sizes. The part number M390450 ensures correct fitment and function for these models.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or sponginess due to internal leaks\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from a worn or damaged master cylinder\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation related to sensor failure\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency caused by improper hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eContaminated or deteriorated master cylinder components affecting brake response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake fluid reservoir is properly filled before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after replacement to remove air\u003c\/li\u003e\n\u003cli\u003eVerify thread pitch and outlet sizes match vehicle specifications\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or acquire separately\u003c\/li\u003e\n\u003cli\u003eCheck sensor connections for proper engagement and function\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390450 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792169631925,"sku":"BKKX-M390450","price":115.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390450_Fro.jpg?v=1774997589","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390450-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}