{"product_id":"dorman-m630530-brake-master-cylinder","title":"Dorman M630530 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Chevrolet and GMC Trucks\u003c\/h2\u003e\u003cp\u003eThe Dorman M630530 Brake Master Cylinder is engineered to restore proper brake function in select Chevrolet and GMC heavy-duty vehicles. Designed with precision, this master cylinder ensures consistent hydraulic pressure for safe and effective braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter of 37 mm for optimal hydraulic control\u003c\/li\u003e\n\u003cli\u003eDurable aluminum construction for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for complete brake system integration\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size M14 x 1.5 and 14 mm secondary outlet thread diameter\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet Express 2500\/3500, GMC Savana 2500\/3500, Suburban 2500, and Yukon XL 2500 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M630530 brake master cylinder features a 37 mm bore diameter, providing precise hydraulic pressure control essential for heavy-duty braking systems. Constructed from aluminum, this master cylinder offers enhanced durability and resistance to corrosion, extending the service life of your vehicle's brake hydraulics. It comes complete with an integrated reservoir and sensor, ensuring seamless compatibility with the vehicle’s brake fluid monitoring system. The unit includes two outlets, with a rearward outlet thread size of M14 x 1.5 and a secondary outlet thread diameter of 14 mm, designed to match factory specifications for a direct replacement.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Express 2500 and Express 3500\u003c\/li\u003e\n\u003cli\u003eGMC Savana 2500 and Savana 3500\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 2500\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis master cylinder is specifically designed for these models, ensuring proper fitment and reliable brake system performance.\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\u003eBrake warning light activation due to sensor failure\u003c\/li\u003e\n\u003cli\u003eReduced hydraulic pressure affecting braking efficiency\u003c\/li\u003e\n\u003cli\u003eContaminated or damaged reservoir affecting fluid levels\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M630530 master cylinder, ensure the brake system is properly bled to remove air pockets and maintain hydraulic integrity. Verify that the sensor connections are secure to avoid brake warning light issues. This part does not include mounting hardware, so retain original fasteners or source appropriate replacements. Follow manufacturer torque specifications for outlet fittings to prevent leaks.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards, using high-quality aluminum materials and precise machining. The included sensor and reservoir are tested for compatibility and durability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulic components to ensure customer confidence and product reliability.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915818696885,"sku":"BKKX-M630530","price":136.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630530_Fro.jpg?v=1774997701","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630530-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}