{"product_id":"dorman-m390310-brake-master-cylinder","title":"Dorman M390310 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Jeep Wrangler\u003c\/h2\u003e\u003cp\u003eThe Dorman M390310 Brake Master Cylinder is engineered to restore proper brake function in Jeep Wrangler models. Designed with durable aluminum construction and a built-in reservoir, this master cylinder ensures consistent hydraulic pressure for safe braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch\u003c\/li\u003e\n\u003cli\u003eConstructed from lightweight aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes integrated reservoir for brake fluid\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports for efficient brake line connection\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M10 x 1.0 thread\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: M12 x 1.0\u003c\/li\u003e\n\u003cli\u003eThread pitch: 1.0\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dorman brake master cylinder (part number M390310) is specifically designed for Jeep Wrangler vehicles, providing a precise fit and reliable operation. The aluminum construction offers corrosion resistance and durability under demanding conditions. The 1-inch bore diameter is optimized for proper hydraulic pressure generation, while the included reservoir simplifies brake fluid management. Featuring two outlets with metric thread sizes (M10 x 1.0 and M12 x 1.0), this master cylinder supports standard brake line connections for the Jeep Wrangler's braking system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake pressure loss due to worn or damaged master cylinder\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks from the master cylinder reservoir\u003c\/li\u003e\n\u003cli\u003eResolves spongy or unresponsive brake pedal feel\u003c\/li\u003e\n\u003cli\u003eAddresses brake system failure caused by internal cylinder wear\u003c\/li\u003e\n\u003cli\u003eReplaces corroded or cracked master cylinder housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M390310 master cylinder on a Jeep Wrangler, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Use compatible brake fluid as specified by the vehicle manufacturer. Since mounting hardware is not included, retain or source the necessary bolts and fittings for secure installation. Verify thread sizes (M10 x 1.0 and M12 x 1.0) to ensure proper brake line connection.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum material provides corrosion resistance for extended service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Refer to Dorman's official documentation for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915816501429,"sku":"BKKX-M390310","price":111.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390310_Fro.jpg?v=1774997570","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390310-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}