{"product_id":"dorman-m544-brake-master-cylinder","title":"Dorman M544 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder Replacement for Your Vehicle\u003c\/h2\u003e\u003cp\u003eThe Dorman M544 brake master cylinder is engineered to restore proper brake hydraulics in select vehicles. Designed with a durable cast iron body and an integrated reservoir, this master cylinder ensures consistent brake fluid delivery and pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches for precise hydraulic control\u003c\/li\u003e\n\u003cli\u003eConstructed from cast iron for long-lasting durability\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eFeatures three outlets with varied thread sizes: 3\/8-18 NPT rearward outlet, 1\/4-18 NPT and 1\/8-27 NPT secondary outlets\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder unit only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eThe Dorman M544 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Its 1.25-inch bore diameter allows for accurate fluid displacement, while the cast iron construction provides resistance to wear and corrosion. The integrated reservoir simplifies installation and maintenance by holding the brake fluid necessary for system operation. With three outlets designed to accommodate various brake line connections, this master cylinder supports complex brake system configurations commonly found in vehicles such as Chevrolet trucks and GMC SUVs.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cp\u003eThis master cylinder is compatible with a range of Chevrolet and GMC models requiring a 1.25-inch bore diameter brake master cylinder. It addresses several brake system issues, including:\u003c\/p\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 hydraulic pressure loss\u003c\/li\u003e\n\u003cli\u003eUneven brake application or pulling during stops\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\u003eWhen installing the Dorman M544 master cylinder, ensure the brake system is properly bled to remove air and restore hydraulic integrity. Since mounting hardware is not included, retain or source compatible bolts and fittings. Verify thread sizes for brake line connections: the rearward outlet uses a 3\/8-18 NPT thread, while secondary outlets use 1\/4-18 NPT and 1\/8-27 NPT threads. Proper torque specifications should be followed to prevent leaks and ensure secure mounting.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M544 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron material and integrated reservoir design contribute to reliable performance under normal operating conditions. While specific warranty details vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or contact the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789310820533,"sku":"BKKX-M544","price":123.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M544_Fro_86bfcd8f-c53a-490f-8574-3ca870885655.jpg?v=1774997446","url":"https:\/\/www.partcatalog.com\/products\/dorman-m544-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}