{"product_id":"dorman-m39961-brake-master-cylinder","title":"Dorman M39961 Brake Master Cylinder","description":"\u003ch2\u003eOverview of the Dorman Brake Master Cylinder M39961\u003c\/h2\u003e\u003cp\u003eThe Dorman Brake Master Cylinder M39961 is designed specifically for Chevrolet Astro and GMC Safari models. This brake hydraulics component ensures reliable brake fluid pressure for safe and consistent braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports for brake line connections\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: 1\/2-20 thread\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: 9\/16-18\u003c\/li\u003e\n\u003cli\u003eMounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M39961 brake master cylinder is engineered with a 1.25-inch bore diameter to provide precise hydraulic pressure control for the braking system. Made from aluminum, this master cylinder offers corrosion resistance and long-lasting durability. It comes with an integrated reservoir to hold brake fluid, eliminating the need for a separate component. The unit features two outlets, including a rearward outlet with a 1\/2-20 thread size and a secondary outlet with a 9\/16-18 thread diameter, allowing for proper brake line connections. This part is compatible with Chevrolet Astro and GMC Safari vehicles, ensuring a direct fit and proper function.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper brake fluid pressure in Chevrolet Astro and GMC Safari models\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal sponginess\u003c\/li\u003e\n\u003cli\u003eSolves brake fluid leaks from damaged or corroded master cylinders\u003c\/li\u003e\n\u003cli\u003eAddresses inconsistent braking performance due to internal seal failure\u003c\/li\u003e\n\u003cli\u003eImproves brake system reliability after component wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake system is properly bled after installation to remove air\u003c\/li\u003e\n\u003cli\u003eVerify thread sizes (1\/2-20 rearward outlet and 9\/16-18 secondary outlet) match brake lines\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or source separately\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39961 brake master cylinder to meet or exceed OEM specifications for Chevrolet Astro and GMC Safari vehicles. The aluminum construction provides corrosion resistance and durability under normal operating conditions. While mounting hardware is not included, the product undergoes quality checks to ensure proper fit and function. Warranty coverage details should be confirmed with the point of purchase or manufacturer.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789368262837,"sku":"BKKX-M39961","price":84.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39961_Fro.jpg?v=1774997512","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39961-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}