{"product_id":"dorman-m39981-brake-master-cylinder","title":"Dorman M39981 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Jeep Cherokee, Comanche, and Wagoneer\u003c\/h2\u003e\u003cp\u003eThe Dorman M39981 brake master cylinder is engineered to restore proper brake hydraulics in select Jeep models. Designed specifically for Jeep Cherokee, Comanche, and Wagoneer vehicles, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCast iron construction for durability and strength\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter of 0.938 inches\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size of 7\/16-24 and secondary outlet thread diameter of 0.5 inches\u003c\/li\u003e\n\u003cli\u003eMounting hardware not included\u003c\/li\u003e\n\u003cli\u003ePart number M39981 for precise fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M39981 brake master cylinder is crafted from cast iron, providing a robust and long-lasting component for your Jeep Cherokee, Comanche, or Wagoneer. The included reservoir simplifies installation and maintenance by housing the brake fluid securely. With a bore diameter of 0.938 inches, this master cylinder is designed to deliver consistent hydraulic pressure to your braking system. Featuring two outlets, including a rearward outlet sized at 7\/16-24 and a secondary outlet thread diameter of 0.5 inches, it supports proper brake line connections for optimal performance. This part is engineered to meet the specific hydraulic requirements of the listed Jeep models, ensuring compatibility and reliable operation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Jeep Cherokee, Comanche, and Wagoneer models\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal sponginess\u003c\/li\u003e\n\u003cli\u003eSolves brake fluid reservoir leaks or contamination issues\u003c\/li\u003e\n\u003cli\u003eAddresses inconsistent braking performance due to master cylinder failure\u003c\/li\u003e\n\u003cli\u003eEliminates brake warning lights related to hydraulic system faults\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 your specific Jeep model and year before installation\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; retain original hardware or source separately\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for mounting bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39981 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to reliable brake system performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Consult product documentation or contact the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789375176885,"sku":"BKKX-M39981","price":84.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39981_Fro.jpg?v=1774997515","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39981-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}