{"product_id":"dorman-m630031-brake-master-cylinder","title":"Dorman M630031 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for GM Trucks and SUVs\u003c\/h2\u003e\u003cp\u003eThe Dorman M630031 Brake Master Cylinder is engineered to restore proper brake hydraulics for select Cadillac, Chevrolet, and GMC models. Designed with a durable aluminum body and integrated reservoir, this master cylinder ensures consistent brake fluid delivery and reliable stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 34 mm for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from corrosion-resistant aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with sensor for brake system monitoring\u003c\/li\u003e\n\u003cli\u003eTwo outlets with secondary outlet thread diameter of 0.5 inches\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: 1\/2-20 thread\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM full-size trucks and SUVs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M630031 master cylinder features a 34 mm bore diameter, providing the correct hydraulic pressure needed for effective brake operation. Its aluminum construction offers durability and resistance to corrosion, extending the service life of the component. The included reservoir allows for proper brake fluid containment, while the integrated sensor supports vehicle brake system diagnostics. With two outlets and a secondary outlet thread diameter of 0.5 inches, this master cylinder is designed to meet the specific hydraulic requirements of your vehicle’s braking system.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with a range of GM vehicles, including Cadillac Escalade, Escalade EXT, Chevrolet Avalanche 1500, Blazer, Silverado 1500 and 1500 HD, Suburban 1500, Tahoe, and GMC Sierra 1500, Sierra 1500 HD, Yukon, Yukon XL 1500, and Yukon XL 2500 models. Ensure proper fitment by verifying your vehicle’s make and model before installation.\u003c\/p\u003e\u003ch2\u003eCommon Brake System Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or spongy feel due to master cylinder failure\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from a worn or damaged master cylinder\u003c\/li\u003e\n\u003cli\u003eWarning lights triggered by faulty brake fluid level sensor\u003c\/li\u003e\n\u003cli\u003eReduced braking performance or uneven brake pressure\u003c\/li\u003e\n\u003cli\u003eBrake system contamination from a compromised reservoir\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M630031 master cylinder requires basic brake system knowledge and tools. It is important to properly bench bleed the master cylinder before installation to remove air from the hydraulic system. Ensure all connections, including the sensor and outlet fittings, are securely tightened to prevent leaks. After installation, bleed the brake system thoroughly to restore full braking performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The M630031 master cylinder undergoes rigorous quality control to ensure reliability and durability. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792212426933,"sku":"BKKX-M630031","price":101.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630031_Fro.jpg?v=1774997602","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630031-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}