{"product_id":"dorman-m390175-brake-master-cylinder","title":"Dorman M390175 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Buick, Chevrolet, Oldsmobile, Pontiac\u003c\/h2\u003e\u003cp\u003eThe Dorman M390175 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed with precision, this master cylinder ensures consistent brake fluid pressure and reliable stopping power for vehicles like the Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 24 mm for accurate fluid displacement\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\u003eFour outlets with secondary outlet thread diameter of 10 mm\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M10 x 1.0 thread and unthreaded for versatile connection\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder unit only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M390175 master cylinder features a 24 mm bore diameter, which is critical for maintaining the correct hydraulic pressure within the brake system. Its aluminum construction offers strength and resistance to corrosion, extending the service life of the component. The included reservoir allows for proper brake fluid containment and circulation, while the integrated sensor provides real-time monitoring of brake system performance. With four outlets, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.0 and unthreaded, this master cylinder supports multiple brake line connections, ensuring compatibility with the hydraulic layout of the specified vehicle models.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with a range of GM vehicles, specifically:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003eChevrolet Lumina and Monte Carlo\u003c\/li\u003e\n\u003cli\u003eOldsmobile Cutlass Supreme and Regal\u003c\/li\u003e\n\u003cli\u003ePontiac Grand Prix\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace the original equipment part and restore proper brake function in these models.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or sponginess due to internal leaks\u003c\/li\u003e\n\u003cli\u003eLoss of hydraulic pressure affecting braking performance\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from a worn or damaged master cylinder\u003c\/li\u003e\n\u003cli\u003eWarning light activation related to brake fluid level or pressure sensor\u003c\/li\u003e\n\u003cli\u003eUneven brake application or poor stopping response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the brake system is properly bled after installation to remove air\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with your vehicle’s brake line fittings and sensor connectors\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or source separately\u003c\/li\u003e\n\u003cli\u003eHandle brake fluid carefully to avoid contamination and damage to painted surfaces\u003c\/li\u003e\n\u003cli\u003eConsult vehicle service manual for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable operation under normal driving conditions. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792113172661,"sku":"BKKX-M390175","price":98.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390175_Fro.jpg?v=1774997553","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390175-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}