{"product_id":"dorman-m630881-brake-master-cylinder","title":"Dorman M630881 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Classic GM Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M630881 brake master cylinder is designed to restore proper brake hydraulics in select Cadillac, Chevrolet, and Pontiac models. Engineered with a durable cast iron construction and an integral reservoir, this master cylinder ensures consistent brake fluid delivery for safe stopping performance.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M630881 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from cast iron for long-lasting durability\u003c\/li\u003e\n\u003cli\u003eIntegral reservoir included for efficient brake fluid management\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter of 1 inch for precise hydraulic control\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size of 7\/16-24 for secure brake line connections\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple classic GM models including Cadillac DeVille and Chevrolet Impala\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M630881 brake master cylinder is a direct replacement part designed to meet the specifications of original equipment. Its cast iron body provides strength and resistance to wear, while the integral reservoir simplifies installation and maintenance by housing the brake fluid in a single unit. With a 1-inch bore diameter and two 7\/16-24 rearward outlets, this master cylinder supports reliable brake line attachment and consistent hydraulic pressure. This part is compatible with a range of classic vehicles such as the Cadillac Eldorado, Chevrolet El Camino, and Pontiac Catalina, making it a practical choice for restoring brake system functionality.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake pressure loss due to worn or leaking master cylinders\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks from damaged reservoirs\u003c\/li\u003e\n\u003cli\u003eResolves spongy or unresponsive brake pedal feel\u003c\/li\u003e\n\u003cli\u003eReplaces corroded or cracked cast iron master cylinders\u003c\/li\u003e\n\u003cli\u003eEnsures proper brake fluid distribution in dual outlet brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake lines match the 7\/16-24 rearward outlet fittings for proper connection\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with your specific Cadillac, Chevrolet, or Pontiac model before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The M630881 brake master cylinder undergoes rigorous quality control to ensure proper fit and function. Please refer to Dorman's warranty policy for coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915820335285,"sku":"BKKX-M630881","price":99.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630881_Fro.jpg?v=1774997776","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630881-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}