{"product_id":"dorman-m390430-brake-master-cylinder","title":"Dorman M390430 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford, Lincoln, and Mercury Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M390430 brake master cylinder is engineered to restore proper brake hydraulics in select Ford, Lincoln, and Mercury models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and responsive braking performance.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M390430 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable aluminum for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to monitor brake system status\u003c\/li\u003e\n\u003cli\u003eFeatures a 1-inch master cylinder bore diameter for optimal hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eThree outlets with specific thread sizes: rearward outlet M10 x 1.0 \u0026amp; 3\/8-24, secondary outlet M18 x 1.0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Dorman brake master cylinder (part number M390430) is designed specifically for use in Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis models. The aluminum construction provides a lightweight yet robust component that resists corrosion and wear. The included reservoir allows for proper brake fluid containment, while the integrated sensor helps maintain system integrity by detecting fluid levels or pressure changes. With a 1-inch bore diameter, this master cylinder delivers consistent hydraulic pressure to the braking system. The three outlet ports with precise thread sizes ensure compatibility with the vehicle’s brake lines, facilitating a secure and leak-free connection.\u003c\/p\u003e\u003ch2\u003eCommon Applications and 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 leaking or damaged reservoirs\u003c\/li\u003e\n\u003cli\u003eResolves brake warning light activation due to sensor faults\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid contamination or internal seal failure\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability in Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis\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 and free of contaminants before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eVerify thread compatibility with existing brake lines using the specified outlet sizes\u003c\/li\u003e\n\u003cli\u003eInspect sensor connections for secure fit and proper operation\u003c\/li\u003e\n\u003cli\u003eConsult vehicle service manual for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\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 performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts to ensure customer confidence and product durability.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915816566965,"sku":"BKKX-M390430","price":136.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390430_Fro.jpg?v=1774997588","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390430-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}