{"product_id":"dorman-m390368-brake-master-cylinder","title":"Dorman M390368 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder for Toyota 4Runner\u003c\/h2\u003e\u003cp\u003eThe Dorman M390368 brake master cylinder is designed specifically for Toyota 4Runner models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure proper brake system function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Toyota 4Runner vehicles\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for enhanced functionality\u003c\/li\u003e\n\u003cli\u003eTwo outlets with secondary outlet thread diameter of 10 mm\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M10 x 1.0 with 1.0 thread pitch\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 M390368 brake master cylinder is engineered to meet the specific hydraulic requirements of Toyota 4Runner brake systems. Its 1-inch bore diameter allows for precise brake fluid pressure control, while the aluminum material offers corrosion resistance and long-term durability. The included reservoir ensures proper fluid storage and monitoring, and the integrated sensor supports brake system diagnostics. Featuring two outlets, including a rearward outlet sized M10 x 1.0 with a 1.0 thread pitch, this master cylinder facilitates secure and accurate brake line connections. Note that mounting hardware is not included with this part.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or leaking brake master cylinders on Toyota 4Runner\u003c\/li\u003e\n\u003cli\u003eRestores proper brake fluid pressure and pedal feel\u003c\/li\u003e\n\u003cli\u003eResolves brake fluid leaks from the master cylinder reservoir or outlets\u003c\/li\u003e\n\u003cli\u003eAddresses brake warning light activation due to faulty sensor or fluid level issues\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with your specific Toyota 4Runner model year before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during installation\u003c\/li\u003e\n\u003cli\u003eMounting hardware must be sourced separately as it is not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390368 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. 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 specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792158195893,"sku":"BKKX-M390368","price":123.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390368_Fro.jpg?v=1774997577","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390368-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}