{"product_id":"dorman-m630953-brake-master-cylinder","title":"Dorman M630953 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder Replacement for Your Vehicle\u003c\/h2\u003e\u003cp\u003eThe Dorman M630953 brake master cylinder is engineered to restore proper brake hydraulics performance in compatible vehicles. Designed with a cast iron body and a removable reservoir, this master cylinder ensures durability and ease of maintenance for your brake system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.75 inches for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from durable cast iron material\u003c\/li\u003e\n\u003cli\u003eIncludes a removable reservoir for convenient brake fluid access\u003c\/li\u003e\n\u003cli\u003eEquipped with two outlets and a sensor for accurate brake system monitoring\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter of 0.5 inches and rearward outlet size of 9\/16-18\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Features\u003c\/h2\u003e\u003cp\u003eThe Dorman M630953 brake master cylinder features a cast iron construction that provides strength and resistance to wear under demanding braking conditions. Its 1.75-inch bore diameter is designed to deliver consistent hydraulic pressure to the brake calipers or wheel cylinders. The included removable reservoir simplifies brake fluid inspection and replacement, while the integrated sensor helps monitor brake system status. With two outlets and specific thread sizes (0.5 inches for the secondary outlet and 9\/16-18 for the rearward outlet), this master cylinder is engineered to meet precise fitment requirements.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake 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\u003eAddresses brake fluid contamination issues by providing a clean, removable reservoir\u003c\/li\u003e\n\u003cli\u003eResolves sensor-related brake warning light activations\u003c\/li\u003e\n\u003cli\u003eSuitable for vehicles requiring a 1.75-inch bore diameter master cylinder with dual outlets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M630953 brake master cylinder, ensure the brake fluid reservoir is properly seated and securely connected to avoid leaks. Bleed the brake system thoroughly after installation to remove air and restore optimal brake pedal feel. Verify compatibility with your vehicle’s brake line fittings, especially noting the secondary outlet thread diameter and rearward outlet size. Sensor connections should be checked for proper engagement to maintain accurate brake system monitoring.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M630953 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52089080643765,"sku":"BKKX-M630953","price":248.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630953_Fro.jpg?v=1775148263","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630953-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}