{"product_id":"dorman-m390448-brake-master-cylinder","title":"Dorman M390448 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder M390448\u003c\/h2\u003e\u003cp\u003eThe Dorman Brake Master Cylinder M390448 is designed specifically for Ford Escort and Mercury Tracer models. This brake hydraulics component features a durable aluminum construction and includes a reservoir and sensor to ensure reliable brake system performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.938 inches\u003c\/li\u003e\n\u003cli\u003eConstructed from aluminum for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid\u003c\/li\u003e\n\u003cli\u003eEquipped with a 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: 10 mm\u003c\/li\u003e\n\u003cli\u003eMounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M390448 brake master cylinder is engineered to meet the specifications of Ford Escort and Mercury Tracer vehicles. Its 0.938-inch bore diameter provides precise hydraulic pressure control, essential for effective braking. Made from aluminum, this master cylinder offers durability and resistance to corrosion, extending the service life of the brake system. The included reservoir allows for proper brake fluid storage, while the integrated sensor supports brake system diagnostics and safety features. With two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet thread diameter of 10 mm, this master cylinder ensures compatibility with the vehicle’s brake lines. Note that mounting hardware is not included, so existing hardware should be inspected or replaced as needed during installation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper hydraulic pressure in the brake system\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eResolves brake pedal sinking or sponginess due to internal seal failure\u003c\/li\u003e\n\u003cli\u003eSupports brake system sensor functionality for warning light operation\u003c\/li\u003e\n\u003cli\u003eAddresses corrosion-related master cylinder failures in Ford Escort and Mercury Tracer models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford Escort and Mercury Tracer vehicles; verify model year and specifications before installation\u003c\/li\u003e\n\u003cli\u003eEnsure brake fluid reservoir is properly filled and free of contaminants\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eInspect existing mounting hardware and replace if worn, as it is not included with this part\u003c\/li\u003e\n\u003cli\u003eCheck sensor connections for proper operation after installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390448 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 mounting hardware is not included, the part is designed for direct replacement in compatible Ford Escort and Mercury Tracer models. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792169042101,"sku":"BKKX-M390448","price":115.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390448_Fro.jpg?v=1774997589","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390448-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}