{"product_id":"dorman-m630913-brake-master-cylinder","title":"Dorman M630913 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Buick and Chevrolet Models\u003c\/h2\u003e\u003cp\u003eThe Dorman M630913 brake master cylinder is engineered to restore proper brake hydraulics in select Buick and Chevrolet vehicles. Designed with durable cast iron and precise bore dimensions, this master cylinder ensures consistent brake fluid pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.9375 inches for accurate hydraulic control\u003c\/li\u003e\n\u003cli\u003eConstructed from cast iron for strength and durability\u003c\/li\u003e\n\u003cli\u003eIncludes two outlets with M12 x 1.0 thread pitch for secure brake line connections\u003c\/li\u003e\n\u003cli\u003eRemote reservoir type design (reservoir not included)\u003c\/li\u003e\n\u003cli\u003eCompatible with Buick Encore, Chevrolet Sonic, and Chevrolet Trax models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M630913 brake master cylinder features a cast iron body that withstands the rigors of brake system pressure and heat. Its 0.9375-inch bore diameter is calibrated to provide consistent hydraulic force to the brake calipers or wheel cylinders. This master cylinder includes two outlets, both with M12 x 1.0 thread pitch, allowing for reliable brake line attachment. The remote reservoir design means the brake fluid reservoir is mounted separately, which is common in many Buick Encore and Chevrolet Sonic brake systems. Note that the reservoir and mounting hardware are not included with this part.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is specifically compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick Encore\u003c\/li\u003e\n\u003cli\u003eChevrolet Sonic\u003c\/li\u003e\n\u003cli\u003eChevrolet Trax\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen searching for a replacement brake master cylinder for these models, referencing part number M630913 ensures proper fit and function.\u003c\/p\u003e\u003ch2\u003eCommon Brake System Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpongy or unresponsive brake pedal\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from the master cylinder\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 master cylinder bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M630913 brake master cylinder requires careful brake system bleeding to remove air and ensure proper hydraulic pressure. Since the reservoir is not included, verify the condition of the existing reservoir before installation. Use appropriate tools to avoid damaging the M12 x 1.0 threaded outlets during brake line connection. Professional installation is recommended for safety and optimal brake performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman brake master cylinders are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete information.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915820499125,"sku":"BKKX-M630913","price":120.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630913_Fro.jpg?v=1774997783","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630913-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}