{"product_id":"dorman-m39952-brake-master-cylinder","title":"Dorman M39952 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Buick, Chevrolet, and Oldsmobile\u003c\/h2\u003e\u003cp\u003eThe Dorman M39952 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Buick, Chevrolet, and Oldsmobile models. Designed with an aluminum body and an included reservoir, this master cylinder ensures consistent brake fluid delivery for safe and effective braking performance.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M39952 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable aluminum for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eDual outlet design with two outlets for efficient brake line connection\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter measures 40 mm \u0026amp; 1-1\/8 inch for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M11 x 1.5 thread specification\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: M12 x 1.0 with 1.0 thread pitch\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 Description of the Dorman M39952 Brake Master Cylinder\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is specifically designed for compatibility with Buick Caprice, Chevrolet Custom Cruiser, and Oldsmobile Roadmaster models. The aluminum construction provides a lightweight yet robust component that resists rust and wear over time. The included reservoir simplifies brake fluid management, while the dual outlet configuration supports proper brake line connections. The precise bore diameter of 40 mm \u0026amp; 1-1\/8 inch ensures consistent hydraulic pressure for reliable braking response. Thread specifications for the rearward and secondary outlets are engineered to match OEM standards, facilitating a secure fit with existing brake lines.\u003c\/p\u003e\u003ch2\u003eCommon Brake Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpongy or unresponsive brake pedal due to master cylinder wear\u003c\/li\u003e\n\u003cli\u003eBrake fluid leaks from a damaged or corroded master cylinder\u003c\/li\u003e\n\u003cli\u003eInconsistent brake pressure affecting stopping performance\u003c\/li\u003e\n\u003cli\u003eBrake warning light activation related to master cylinder failure\u003c\/li\u003e\n\u003cli\u003eBrake pedal sinking or failure to maintain pressure under load\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake system is fully depressurized before removal\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eVerify thread sizes (M11 x 1.5 and M12 x 1.0) for proper brake line connection\u003c\/li\u003e\n\u003cli\u003eUse compatible brake fluid as specified by vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eCheck for leaks and proper pedal feel before driving\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official documentation for complete warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915815452853,"sku":"BKKX-M39952","price":84.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39952_Fro.jpg?v=1774997511","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39952-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}