{"product_id":"dorman-m390378-brake-master-cylinder","title":"Dorman M390378 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Dodge Dakota and Jeep Wrangler\u003c\/h2\u003e\u003cp\u003eThe Dorman M390378 Brake Master Cylinder is engineered to restore proper brake hydraulics for Dodge Dakota and Jeep Wrangler models. Designed with durable aluminum construction and a built-in reservoir, this master cylinder ensures consistent brake fluid delivery and reliable stopping power.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M390378 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from aluminum for corrosion resistance and durability\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with two outlets to support dual-circuit brake systems\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M10 x 1.0 thread for secure fitting\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 only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M390378 Brake Master Cylinder is specifically designed for use in Dodge Dakota and Jeep Wrangler vehicles, providing a direct replacement for the original equipment part. Its aluminum body offers enhanced resistance to corrosion and wear, extending the service life of the brake system. The 1-inch bore diameter ensures proper hydraulic pressure is maintained, while the included reservoir allows for efficient brake fluid management. With two outlets featuring precise thread sizes (M10 x 1.0 rearward and M12 x 1.0 secondary), this master cylinder supports dual-circuit brake systems commonly found in these vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Dodge Dakota and Jeep Wrangler brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces leaking or damaged master cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eEliminates spongy or unresponsive brake pedal feel\u003c\/li\u003e\n\u003cli\u003eResolves brake system failure due to worn internal seals or corrosion\u003c\/li\u003e\n\u003cli\u003eSupports safe and consistent braking performance under normal driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake fluid reservoir is properly filled before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eVerify thread sizes (M10 x 1.0 and M12 x 1.0) match vehicle brake lines\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or source separately\u003c\/li\u003e\n\u003cli\u003eConsult vehicle service manual for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390378 Brake Master Cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and precise machining ensure long-term reliability in brake hydraulics. While mounting hardware is not included, the part is backed by Dorman's quality control processes. Please refer to Dorman's official warranty policy for coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792159768757,"sku":"BKKX-M390378","price":94.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390378_Fro.jpg?v=1774997579","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390378-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}