{"product_id":"dorman-m630191-brake-master-cylinder","title":"Dorman M630191 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Hyundai Optima and Kia Sonata\u003c\/h2\u003e\u003cp\u003eThe Dorman M630191 brake master cylinder is engineered to restore proper brake hydraulics in select Hyundai and Kia vehicles. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and responsive braking performance.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M630191 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter of 0.938 inches for accurate hydraulic control\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to monitor brake system status\u003c\/li\u003e\n\u003cli\u003eFeatures four outlets with rearward outlet sizes of M10 x 1.0 and M16 x 1.5 threads\u003c\/li\u003e\n\u003cli\u003eCompatible with Hyundai Optima and Kia Sonata models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M630191 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Its 0.938-inch bore diameter is designed to match OEM specifications, ensuring proper fluid displacement and brake response. Made from aluminum, this master cylinder offers enhanced resistance to rust and wear, contributing to a longer service life. The included reservoir allows for efficient brake fluid management, while the integrated sensor provides real-time feedback to the vehicle’s brake system. With four outlets and specific rearward outlet thread sizes (M10 x 1.0 and M16 x 1.5), this part is engineered to fit precisely within the brake lines of Hyundai Optima and Kia Sonata vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Brake Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpongy or unresponsive brake pedal feel\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from the master cylinder or reservoir\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation due to sensor faults\u003c\/li\u003e\n\u003cli\u003eUneven braking or reduced stopping power\u003c\/li\u003e\n\u003cli\u003eBrake pedal sinking or failure to maintain pressure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M630191 brake master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic function. It is important to verify compatibility with your specific Hyundai Optima or Kia Sonata model year before installation. Since mounting hardware is not included, retain original fasteners or source appropriate replacements. Handle the aluminum component carefully to avoid damage during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The use of aluminum material and integrated sensor reflects a focus on durability and system integration. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915817156789,"sku":"BKKX-M630191","price":91.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630191_Fro.jpg?v=1774997631","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630191-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}