{"product_id":"dorman-m390516-brake-master-cylinder","title":"Dorman M390516 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Dodge Ram and B-Series Vans\u003c\/h2\u003e\u003cp\u003eThe Dorman M390516 brake master cylinder is engineered to restore proper brake hydraulics in Dodge B1500, B2500, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van models. Designed with durable aluminum construction and a built-in reservoir, this master cylinder ensures consistent brake fluid delivery for safe and effective braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1.25 inches for precise hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from lightweight, corrosion-resistant aluminum\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated brake fluid reservoir for convenience\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size M10 x 1.0 and secondary outlet thread diameter M12 x 1.0\u003c\/li\u003e\n\u003cli\u003eThread pitch of 1.0 for secure fitting\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\u003eThe Dorman M390516 brake master cylinder is designed specifically for select Dodge trucks and Ram vans, including the B1500, B2500, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van. Its 1.25-inch bore diameter provides the correct hydraulic pressure needed for these vehicles' braking systems. The aluminum material offers a balance of strength and corrosion resistance, extending the component's service life. This master cylinder comes with an integrated reservoir, eliminating the need for a separate fluid container, and features two outlets with precise thread sizes (M10 x 1.0 rearward outlet and M12 x 1.0 secondary outlet) to ensure compatibility with factory brake lines. Note that mounting hardware is not included, so existing hardware or separate purchase may be necessary.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Dodge B1500, B2500, B3500, and Ram 1500\/2500\/3500 Vans\u003c\/li\u003e\n\u003cli\u003eReplaces master cylinders with worn or leaking seals\u003c\/li\u003e\n\u003cli\u003eAddresses spongy or unresponsive brake pedal issues\u003c\/li\u003e\n\u003cli\u003eFixes brake fluid leaks from the master cylinder reservoir or outlets\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\u003cp\u003eWhen installing the Dorman M390516 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Verify that the outlet thread sizes (M10 x 1.0 and M12 x 1.0) match your vehicle’s brake line fittings. Since mounting hardware is not included, retain original bolts or acquire compatible hardware before installation. Use appropriate brake fluid as specified by the vehicle manufacturer and follow all safety precautions during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390516 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated reservoir are designed for durability and consistent performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792192209077,"sku":"BKKX-M390516","price":105.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390516_Fro.jpg?v=1774997593","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390516-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}