{"product_id":"dorman-m630935-brake-master-cylinder","title":"Dorman M630935 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Audi A8 Quattro and S8\u003c\/h2\u003e\u003cp\u003eThe Dorman M630935 brake master cylinder is engineered to restore proper brake hydraulics in select Audi models. Designed specifically for Audi A8 Quattro, Allroad Quattro, and S8 vehicles, this cast iron master cylinder ensures consistent brake fluid pressure and reliable stopping power.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M630935 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable cast iron for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter of 1 inch for precise hydraulic control\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\u003eRemovable reservoir type (reservoir not included)\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware and sensor are not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M630935 brake master cylinder is a critical component in the brake hydraulics system of Audi A8 Quattro, Allroad Quattro, and S8 models. Manufactured from cast iron, it offers strength and resistance to wear under high pressure. The 1-inch bore diameter is designed to provide accurate brake fluid displacement, ensuring consistent brake pedal feel and effective braking response. This master cylinder features two outlets, with precise thread sizes (M10 x 1.0 rearward outlet and M12 x 1.0 secondary outlet) to match factory brake line fittings. The removable reservoir design allows for easy maintenance, although the reservoir itself is not included with this part. Note that mounting hardware and sensors are not part of this package, so these components must be sourced separately if needed.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Audi A8 Quattro, Allroad Quattro, and S8 brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces master cylinders with internal leaks or worn seals causing brake pedal sinking\u003c\/li\u003e\n\u003cli\u003eSolves inconsistent brake pedal feel or sponginess due to master cylinder wear\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid contamination or corrosion inside the master cylinder bore\u003c\/li\u003e\n\u003cli\u003eFixes brake warning light issues related to master cylinder failure (sensor not included)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Audi A8 Quattro, Allroad Quattro, and S8 models before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or acquire appropriate fasteners\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for damage or wear during installation\u003c\/li\u003e\n\u003cli\u003eUse recommended brake fluid type as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M630935 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The cast iron construction provides durability under demanding braking conditions. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792432038069,"sku":"BKKX-M630935","price":115.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630935_Fro.jpg?v=1774997787","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630935-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}