{"product_id":"dorman-m630037-brake-master-cylinder","title":"Dorman M630037 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Select GM and Isuzu Models\u003c\/h2\u003e\u003cp\u003eThe Dorman M630037 Brake Master Cylinder is engineered to restore proper brake hydraulics in your Buick, Chevrolet, GMC, Isuzu, Oldsmobile, or Saab vehicle. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch for accurate fluid displacement\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage and monitoring\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to support brake system diagnostics\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with a secondary outlet thread diameter of 0.5 inches\u003c\/li\u003e\n\u003cli\u003eRearward outlet size specified as 1\/2-20 for proper hose connection\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder unit only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThis Dorman brake master cylinder (part number M630037) is designed specifically for compatibility with a range of GM and Isuzu vehicles, including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models such as the 9-7x, Ascender, Bravada, Envoy, Envoy XL, Envoy XUV, Rainier, SSR, Trailblazer, and Trailblazer EXT. The aluminum construction provides a balance of strength and lightweight performance, while the included reservoir and sensor facilitate integration with your vehicle’s brake system. The dual outlet design supports efficient brake fluid distribution to front and rear brakes.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in vehicles experiencing spongy or unresponsive brakes\u003c\/li\u003e\n\u003cli\u003eReplaces master cylinders with leaking or damaged reservoirs\u003c\/li\u003e\n\u003cli\u003eAddresses brake warning light issues related to sensor failure\u003c\/li\u003e\n\u003cli\u003eCorrects brake fluid flow problems caused by worn or corroded master cylinders\u003c\/li\u003e\n\u003cli\u003eSupports brake system rebuilds on compatible Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M630037 master cylinder requires proper brake system bleeding to remove air and ensure optimal brake performance. Since mounting hardware is not included, retain or source compatible bolts and fittings. Verify thread sizes—0.5 inch secondary outlet and 1\/2-20 rearward outlet—to ensure correct hose connections. Sensor wiring should be connected according to vehicle-specific service manuals to maintain brake system diagnostics.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM specifications, using high-quality aluminum for durability and corrosion resistance. The included sensor and reservoir are tested for reliable operation within the brake hydraulic system. While mounting hardware is not provided, the master cylinder itself is backed by Dorman’s standard warranty coverage, ensuring confidence in fit and function for your Buick, Chevrolet, GMC, Isuzu, Oldsmobile, or Saab vehicle.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792213475509,"sku":"BKKX-M630037","price":115.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630037_Fro_24dc763f-8d90-4e26-87e7-f49702747d0e.jpg?v=1774997604","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630037-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}