{"product_id":"dorman-m390390-brake-master-cylinder","title":"Dorman M390390 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder M390390\u003c\/h2\u003e\u003cp\u003eThe Dorman Brake Master Cylinder M390390 is designed specifically for Ford E-350 Econoline models, providing reliable brake hydraulics performance. This master cylinder features an integrated reservoir and sensor to ensure optimal brake system functionality.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford E-350 Econoline\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir and sensor for enhanced monitoring\u003c\/li\u003e\n\u003cli\u003eThree outlets with specified thread sizes for precise fitment\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: 9\/16-18\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: 7\/16-24\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 M390390 brake master cylinder is engineered with a 1.25-inch bore diameter to match the hydraulic requirements of the Ford E-350 Econoline. Its aluminum construction offers corrosion resistance and durability under demanding conditions. The included reservoir allows for proper brake fluid storage, while the integrated sensor provides real-time feedback to the vehicle’s brake system. Featuring three outlets, including a rearward outlet sized at 9\/16-18 and a secondary outlet with a 7\/16-24 thread diameter, this master cylinder ensures precise hydraulic connections for effective brake pressure distribution.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper brake fluid pressure in Ford E-350 Econoline brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal issues\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid reservoir leaks or sensor malfunctions\u003c\/li\u003e\n\u003cli\u003eSolves inconsistent brake pedal feel or reduced braking efficiency\u003c\/li\u003e\n\u003cli\u003eEnsures compatibility with factory brake hydraulics setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman M390390 master cylinder requires careful attention to brake line connections and sensor wiring. Since mounting hardware is not included, retain original fasteners or source appropriate replacements. Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function. Verify sensor operation with diagnostic tools to confirm correct brake system communication.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390390 master cylinder to meet or exceed OEM specifications for the Ford E-350 Econoline. The aluminum construction and integrated components undergo rigorous quality control to ensure durability and performance. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792160948405,"sku":"BKKX-M390390","price":120.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390390_Fro.jpg?v=1774997581","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390390-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}