{"product_id":"dorman-m39531-brake-master-cylinder","title":"Dorman M39531 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Ford and Mercury Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M39531 brake master cylinder is engineered to restore proper brake hydraulics in select Ford and Mercury models. Designed with a durable cast iron construction and a 21mm bore diameter, this master cylinder ensures consistent braking performance for vehicles like the Mustang, Thunderbird, and Grand Marquis.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCast iron master cylinder material for durability\u003c\/li\u003e\n\u003cli\u003e21mm bore diameter for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for fluid containment\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size 1\/2-20 and secondary outlet thread diameter 9\/16-18\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford Capri, Cougar, Grand Marquis, LTD, Marquis, Mustang, and Thunderbird\u003c\/li\u003e\n\u003cli\u003ePart number M39531 for accurate identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dorman brake master cylinder (part number M39531) features a cast iron body that withstands the rigors of brake system pressure and heat. The 21mm bore diameter is calibrated to provide the correct hydraulic force needed for effective braking. The included reservoir simplifies installation by providing a ready-to-use fluid container. With two outlets, including a rearward outlet sized at 1\/2-20 and a secondary outlet thread diameter of 9\/16-18, this master cylinder is designed to integrate seamlessly with the brake hydraulics of compatible Ford and Mercury vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis master cylinder is compatible with a range of Ford and Mercury models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord Capri\u003c\/li\u003e\n\u003cli\u003eFord Cougar\u003c\/li\u003e\n\u003cli\u003eFord Mustang\u003c\/li\u003e\n\u003cli\u003eFord Thunderbird\u003c\/li\u003e\n\u003cli\u003eMercury Grand Marquis\u003c\/li\u003e\n\u003cli\u003eMercury LTD\u003c\/li\u003e\n\u003cli\u003eMercury Marquis\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse the Dorman M39531 to replace worn or failing master cylinders in these vehicles to maintain safe and reliable braking performance.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpongy or unresponsive brake pedal\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from the master cylinder or reservoir\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency or uneven brake pressure\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation due to hydraulic failure\u003c\/li\u003e\n\u003cli\u003eContaminated or damaged brake fluid reservoir\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the brake system is properly bled after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with your vehicle’s brake line fittings before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eInspect mounting points and hardware; note that mounting hardware is not included\u003c\/li\u003e\n\u003cli\u003eFollow all safety precautions when working with brake hydraulics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39531 brake master cylinder to meet or exceed OEM standards for fit and function. The cast iron construction and precise bore diameter contribute to long-lasting performance. While mounting hardware is not included, the product is backed by Dorman’s quality control processes. Please refer to Dorman’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789343031477,"sku":"BKKX-M39531","price":66.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39531_Fro.jpg?v=1774997479","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39531-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}