{"product_id":"dorman-m390503-brake-master-cylinder","title":"Dorman M390503 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Mazda 626\u003c\/h2\u003e\u003cp\u003eThe Dorman M390503 brake master cylinder is designed specifically for Mazda 626 models, providing precise hydraulic control for your vehicle's braking system. This aluminum master cylinder includes a reservoir and sensor to ensure optimal performance and safety.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M390503 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.938 inches for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to monitor brake system status\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter of 10 mm\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M390503 brake master cylinder is engineered to meet the specifications of Mazda 626 vehicles, ensuring compatibility and reliable operation. Its 0.938-inch bore diameter allows for precise hydraulic pressure control, essential for effective braking. Made from aluminum, this master cylinder offers resistance to corrosion and heat, contributing to long-term durability. The included reservoir simplifies installation and maintenance by providing a ready-to-use brake fluid container. Additionally, the integrated sensor helps monitor brake system performance, alerting to potential issues early. The two outlet ports, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, accommodate standard brake line connections for seamless integration.\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 Mazda 626\u003c\/li\u003e\n\u003cli\u003eRestores proper hydraulic pressure for consistent brake pedal feel\u003c\/li\u003e\n\u003cli\u003eResolves brake fluid leaks caused by damaged reservoirs or seals\u003c\/li\u003e\n\u003cli\u003eAddresses brake warning light activation due to sensor failure\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Mazda 626 models; verify fitment before installation\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or purchase separately\u003c\/li\u003e\n\u003cli\u003eBleed brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and connections for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eHandle brake fluid carefully to avoid contamination and damage to painted surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390503 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable performance under normal operating conditions. While specific warranty details may vary, 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":43792174874805,"sku":"BKKX-M390503","price":83.67,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390503_Fro.jpg?v=1774997591","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390503-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}