{"product_id":"dorman-m39661-brake-master-cylinder","title":"Dorman M39661 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Mercedes-Benz Models\u003c\/h2\u003e\u003cp\u003eThe Dorman M39661 brake master cylinder is engineered for select Mercedes-Benz vehicles, including the 300D, 300TD, 380SE, 380SEC, 380SEL, 380SL, and 380SLC. Designed to restore proper brake hydraulics, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Mercedes-Benz 300D, 300TD, 380SE, 380SEC, 380SEL, 380SL, and 380SLC\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameters: 0.75 inch and 0.938 inch\u003c\/li\u003e\n\u003cli\u003eConstructed from durable cast iron for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eIncludes three outlets with a rearward outlet size of M10 x 1.0 and thread pitch of 1.0\u003c\/li\u003e\n\u003cli\u003eDoes not include mounting hardware or reservoir\u003c\/li\u003e\n\u003cli\u003ePart number M39661 for precise identification and fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M39661 brake master cylinder features dual bore diameters of 0.75 and 0.938 inches, accommodating the hydraulic requirements of specific Mercedes-Benz brake systems. Manufactured from cast iron, this master cylinder offers strength and resistance to wear under high-pressure conditions. It includes three outlets, with a secondary outlet thread diameter of 10 mm and a rearward outlet thread size of M10 x 1.0, ensuring compatibility with original brake lines. Note that this unit does not come with a reservoir or mounting hardware, so these components must be sourced separately if needed.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Mercedes-Benz 300D and 300TD brake systems\u003c\/li\u003e\n\u003cli\u003eAddresses brake pedal sinking or sponginess due to master cylinder wear\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid leaks from a failing master cylinder\u003c\/li\u003e\n\u003cli\u003eResolves inconsistent braking performance in 380SE, 380SEC, 380SEL, 380SL, and 380SLC models\u003c\/li\u003e\n\u003cli\u003ePrevents brake system failure caused by internal seal deterioration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M39661 brake master cylinder, ensure the brake system is properly bled to remove air and maintain hydraulic integrity. Since mounting hardware and reservoir are not included, verify compatibility and condition of existing components before installation. Use thread sealant or appropriate fittings on the M10 x 1.0 outlets to prevent leaks. Follow manufacturer torque specifications to avoid damage to the cast iron housing.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman brake master cylinders undergo rigorous testing to meet or exceed OEM standards for fit, form, and function. The M39661 part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship. This ensures dependable performance and peace of mind when replacing critical brake hydraulics on your Mercedes-Benz vehicle.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789348044981,"sku":"BKKX-M39661","price":129.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39661_Fro.jpg?v=1774997493","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39661-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}