{"product_id":"dorman-m630035-brake-master-cylinder","title":"Dorman M630035 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for GM Trucks and SUVs\u003c\/h2\u003e\u003cp\u003eThe Dorman M630035 Brake Master Cylinder is engineered to restore proper brake hydraulics for select Cadillac, Chevrolet, and GMC vehicles. Designed with an aluminum body and integrated reservoir, this master cylinder ensures consistent brake fluid delivery and pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 37 mm for precise hydraulic control\u003c\/li\u003e\n\u003cli\u003eDurable aluminum construction for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for complete brake system integration\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 for secure brake line connections\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM models including Silverado, Sierra, Tahoe, Yukon, Escalade, and Avalanche\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M630035 master cylinder features a 37 mm bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system. Constructed from aluminum, this part offers enhanced durability and resistance to corrosion compared to traditional cast iron units. The included reservoir allows for proper brake fluid storage and monitoring, while the integrated sensor supports brake fluid level detection to alert drivers of low fluid conditions. With two outlets and a secondary outlet thread diameter of 0.5 inches, this master cylinder supports dual-circuit brake systems commonly found in heavy-duty GM trucks and SUVs. The rearward outlet size of 1\/2-20 ensures compatibility with factory brake lines for a secure fit.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with a range of GM vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade and Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 1500 and 2500\u003c\/li\u003e\n\u003cli\u003eChevrolet Blazer, Silverado 1500, 1500 HD, 2500, 2500 HD, and 3500\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 1500 and 2500\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, 1500 HD, 2500, 2500 HD, and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Yukon, Yukon XL 1500, and Yukon XL 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Brake System Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or sponginess due to master cylinder wear\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from a damaged or corroded master cylinder\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation caused by faulty fluid level sensor\u003c\/li\u003e\n\u003cli\u003eUneven braking or reduced stopping power\u003c\/li\u003e\n\u003cli\u003eBrake system failure from internal seal deterioration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake fluid reservoir is properly filled and free of contaminants before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after replacing the master cylinder to remove air\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with your specific vehicle year and model before purchase\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging outlet threads during brake line connection\u003c\/li\u003e\n\u003cli\u003eCheck sensor wiring connections for proper brake fluid level monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M630035 master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to product documentation for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792213082293,"sku":"BKKX-M630035","price":106.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630035_Fro_c646e9d3-c627-4812-bea8-ef79bb7cc435.jpg?v=1774997603","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630035-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}