{"product_id":"dorman-m630221-brake-master-cylinder","title":"Dorman M630221 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Mazda Protege\u003c\/h2\u003e\u003cp\u003eThe Dorman M630221 brake master cylinder is engineered to restore proper brake hydraulics for Mazda Protege models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.938 inches for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with sensor for brake system monitoring\u003c\/li\u003e\n\u003cli\u003eFour outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter of 10 mm\u003c\/li\u003e\n\u003cli\u003ePackage contains master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dorman brake master cylinder (part number M630221) is specifically designed for Mazda Protege vehicles, ensuring compatibility and reliable fitment. The aluminum construction offers corrosion resistance and strength, while the 0.938-inch bore diameter provides precise hydraulic pressure control. The included reservoir allows for proper brake fluid containment, and the integrated sensor supports brake system diagnostics. Featuring four outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this master cylinder supports efficient brake fluid distribution. Note that mounting hardware is not included with this part.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake pressure loss due to worn or damaged master cylinder\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks from a faulty reservoir or seals\u003c\/li\u003e\n\u003cli\u003eResolves brake warning light issues related to sensor failure\u003c\/li\u003e\n\u003cli\u003eImproves brake pedal feel and responsiveness\u003c\/li\u003e\n\u003cli\u003eAddresses uneven brake fluid distribution in Mazda Protege brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M630221 brake master cylinder on a Mazda Protege, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air pockets and verify sensor connections for accurate brake system monitoring. Since mounting hardware is not included, retain or source compatible hardware for secure installation. Follow vehicle-specific service manual instructions for torque specifications and safety precautions.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum material provides durability and corrosion resistance for long service life. This part includes a sensor to maintain brake system integrity. Warranty coverage details should be confirmed with the distributor or manufacturer, as it may vary by region.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792237232309,"sku":"BKKX-M630221","price":124.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630221_Fro.jpg?v=1774997636","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630221-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}