{"product_id":"dorman-m639008-brake-master-cylinder","title":"Dorman M639008 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder for Chevrolet Astra\u003c\/h2\u003e\u003cp\u003eThe Dorman M639008 brake master cylinder is designed specifically for Chevrolet Astra models, providing reliable brake hydraulics performance. Crafted from durable aluminum, this master cylinder ensures consistent braking pressure and long-lasting operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet Astra vehicles\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.938 inches\u003c\/li\u003e\n\u003cli\u003eConstructed from aluminum for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes two outlets with rearward outlet size M10 x 1.0 and secondary outlet thread diameter M12 x 1.0\u003c\/li\u003e\n\u003cli\u003eDoes not include mounting hardware, reservoir, or sensor\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M639008 brake master cylinder is engineered to meet the specific hydraulic requirements of the Chevrolet Astra. Its 0.938-inch bore diameter is optimized for precise brake fluid displacement, ensuring effective pressure delivery to the brake system. Made from aluminum, the master cylinder offers a balance of lightweight design and resistance to corrosion, which is critical for maintaining brake system integrity over time.\u003c\/p\u003e\u003cp\u003eThis master cylinder features two outlets: a rearward outlet sized M10 x 1.0 and a secondary outlet with a thread diameter of M12 x 1.0, both with a thread pitch of 1.0. These specifications align with the original equipment requirements for the Chevrolet Astra, facilitating straightforward integration into the vehicle's brake hydraulics system. Note that this product does not include the reservoir, sensor, or mounting hardware, so those components must be sourced separately if needed.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper brake fluid pressure in Chevrolet Astra brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal issues\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid leaks from the master cylinder body or outlets\u003c\/li\u003e\n\u003cli\u003eSolves inconsistent brake pedal feel or sponginess due to internal wear\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\u003eEnsure compatibility with Chevrolet Astra before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eInspect related brake components such as the reservoir and sensors, as these are not included\u003c\/li\u003e\n\u003cli\u003eVerify outlet thread sizes (M10 x 1.0 and M12 x 1.0) for proper hose fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M639008 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides durability and corrosion resistance essential for brake system components. While specific warranty details should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in material and workmanship to ensure product reliability.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792441311413,"sku":"BKKX-M639008","price":113.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M639008_Fro.jpg?v=1774997806","url":"https:\/\/www.partcatalog.com\/products\/dorman-m639008-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}