{"product_id":"dorman-m630377-brake-master-cylinder","title":"Dorman M630377 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Chevrolet Astro and GMC Safari\u003c\/h2\u003e\u003cp\u003eThe Dorman M630377 brake master cylinder is designed specifically for Chevrolet Astro and GMC Safari models, providing consistent hydraulic pressure for your vehicle's braking system. Crafted from durable aluminum, this master cylinder includes a reservoir and features precise bore and outlet dimensions to ensure proper fit and function.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M630377 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from aluminum for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eTwo outlets with a secondary outlet thread diameter of 0.5 inches\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: 1\/2-20 thread for secure brake line connection\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M630377 brake master cylinder is engineered to meet the specifications required by Chevrolet Astro and GMC Safari vehicles. Its 1.25-inch bore diameter ensures proper hydraulic pressure is maintained within the brake system, contributing to reliable stopping power. The aluminum construction offers durability and resistance to corrosion, extending the service life of the component. This master cylinder comes with an integrated reservoir, simplifying brake fluid management. Featuring two outlets, including a secondary outlet with a 0.5-inch thread diameter and a rearward outlet sized at 1\/2-20, it supports secure and leak-free brake line connections. Note that this part does not include mounting hardware, so ensure you have the necessary components for installation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or leaking brake master cylinders on Chevrolet Astro and GMC Safari\u003c\/li\u003e\n\u003cli\u003eRestores proper hydraulic pressure for consistent brake pedal feel\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks caused by damaged reservoirs or seals\u003c\/li\u003e\n\u003cli\u003eResolves issues with uneven braking or spongy brake pedal response\u003c\/li\u003e\n\u003cli\u003eSupports brake system maintenance and safety compliance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with your specific Chevrolet Astro or GMC Safari model year before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air and ensure proper function\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during installation\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; retain original hardware or source replacements as needed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M630377 brake master cylinder to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult the product packaging or Dorman’s official resources for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52089074090165,"sku":"BKKX-M630377","price":128.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630377_Fro.jpg?v=1775148241","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630377-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}