{"product_id":"dorman-m39704-brake-master-cylinder","title":"Dorman M39704 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Mercedes-Benz Models\u003c\/h2\u003e\u003cp\u003eThe Dorman M39704 Brake Master Cylinder is engineered to restore proper brake hydraulics for select Mercedes-Benz vehicles. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Mercedes-Benz 300SD, 300SDL, 300SE, 300SEL, 300SL, 350SD, 350SDL, 400E, 420SEL, 500E, 500SEC, 500SL, 560SEC, 560SEL, 560SL, E420, E500, S320, S350, SL320, and SL500 models\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eDual bore diameters of 0.75 and 1 inch for precise hydraulic control\u003c\/li\u003e\n\u003cli\u003eIncludes three outlets with a rearward outlet size of M10 x 1.0 and a thread pitch of 1.0\u003c\/li\u003e\n\u003cli\u003eDoes not include mounting hardware or reservoir, sold as master cylinder only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M39704 brake master cylinder features a dual bore design with bore diameters of 0.75 and 1 inch, allowing for balanced hydraulic pressure distribution. Manufactured from aluminum, this master cylinder offers enhanced resistance to wear and corrosion compared to traditional cast iron units. It includes three outlets, with the secondary outlet thread diameter measuring 10 mm and a rearward outlet size of M10 x 1.0, ensuring compatibility with the brake lines on specified Mercedes-Benz models. The thread pitch is 1.0, matching OEM specifications for secure fitting. 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 300SD and 500SL brake systems\u003c\/li\u003e\n\u003cli\u003eAddresses issues related to brake pedal sinking or sponginess\u003c\/li\u003e\n\u003cli\u003eReplaces master cylinders with internal leaks or worn seals\u003c\/li\u003e\n\u003cli\u003eSolves inconsistent braking response in models like the 420SEL and 560SEL\u003c\/li\u003e\n\u003cli\u003eEliminates brake fluid contamination caused by corroded or damaged master cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure brake system is fully depressurized before removal\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with your specific Mercedes-Benz model and year prior to installation\u003c\/li\u003e\n\u003cli\u003eUse OEM or compatible brake fluid to maintain system integrity\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39704 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides durability and corrosion resistance for extended service life. While mounting hardware and reservoir are not included, the master cylinder is designed for direct replacement on compatible Mercedes-Benz models. Warranty coverage details should be confirmed at the point of purchase, as they may vary.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789348274357,"sku":"BKKX-M39704","price":175.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39704_Fro.jpg?v=1774997494","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39704-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}