{"product_id":"dorman-m39809-brake-master-cylinder","title":"Dorman M39809 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Jeep CJ5 and CJ7\u003c\/h2\u003e\u003cp\u003eThe Dorman M39809 brake master cylinder is designed specifically for Jeep CJ5 and CJ7 models, providing a durable and precise hydraulic braking solution. Crafted from cast iron with a 1.063-inch bore diameter, this master cylinder includes a reservoir and features two outlets for efficient brake fluid distribution.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M39809 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from cast iron for strength and durability\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter of 1.063 inches\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size 1\/2-20 and secondary outlet thread diameter 9\/16-18\u003c\/li\u003e\n\u003cli\u003eCompatible with Jeep CJ5 and CJ7 brake hydraulic systems\u003c\/li\u003e\n\u003cli\u003eMounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description of the Dorman M39809 Brake Master Cylinder\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is engineered to meet the hydraulic braking requirements of Jeep CJ5 and CJ7 vehicles. The cast iron construction ensures long-lasting performance under demanding conditions. The 1.063-inch bore diameter is designed to provide consistent brake fluid pressure, while the included reservoir allows for proper fluid containment and monitoring. Featuring two outlets, the master cylinder supports dual-circuit brake systems, with a rearward outlet size of 1\/2-20 and a secondary outlet thread diameter of 9\/16-18, ensuring compatibility with original brake lines.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or leaking master cylinders in Jeep CJ5 and CJ7\u003c\/li\u003e\n\u003cli\u003eRestores proper brake fluid pressure and pedal feel\u003c\/li\u003e\n\u003cli\u003eSolves issues related to brake fluid leaks or reservoir damage\u003c\/li\u003e\n\u003cli\u003eAddresses brake system failure due to internal cylinder wear\u003c\/li\u003e\n\u003cli\u003eImproves braking reliability and safety on older Jeep models\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 compatibility with existing brake lines using outlet thread sizes\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse original hardware or source separately\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear during installation\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer torque specifications for mounting bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39809 brake master cylinder to meet or exceed OEM standards for fit and function. The cast iron material and precise bore diameter contribute to reliable brake system performance. While mounting hardware is not included, the product is backed by Dorman's quality control processes. Please refer to Dorman's warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789354500277,"sku":"BKKX-M39809","price":139.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39809_Fro_a3344fbb-9758-4e06-8543-a489febfc8be.jpg?v=1774997504","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39809-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}