{"product_id":"dorman-m39403-brake-master-cylinder","title":"Dorman M39403 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Toyota Pickup\u003c\/h2\u003e\u003cp\u003eThe Dorman M39403 brake master cylinder is engineered to restore proper brake hydraulics in your Toyota Pickup. Designed with durable cast iron and a precise 0.938-inch bore diameter, this master cylinder ensures consistent brake fluid pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCast iron master cylinder material for strength and durability\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size M10 x 1.0 and 10mm secondary outlet thread diameter\u003c\/li\u003e\n\u003cli\u003eThread pitch of 1.0 for secure hydraulic connections\u003c\/li\u003e\n\u003cli\u003eCompatible specifically with Toyota Pickup models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M39403 brake master cylinder features a 0.938-inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system. Constructed from cast iron, this master cylinder offers long-lasting resistance to wear and corrosion. It comes with an integrated reservoir to hold brake fluid, eliminating the need for a separate component. The unit has two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet with a 10mm thread diameter, both designed to fit the brake lines of Toyota Pickup vehicles precisely. The thread pitch of 1.0 ensures a tight and leak-free connection.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Toyota Pickup brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal issues\u003c\/li\u003e\n\u003cli\u003eSolves brake fluid reservoir leaks or contamination problems\u003c\/li\u003e\n\u003cli\u003eAddresses inconsistent brake pedal feel or sponginess\u003c\/li\u003e\n\u003cli\u003eFixes brake system failures related to master cylinder wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M39403 brake master cylinder on your Toyota Pickup, ensure the brake lines match the specified outlet thread sizes (M10 x 1.0 and 10mm). Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic pressure. Note that mounting hardware is not included, so retain original fasteners or acquire appropriate replacements. Proper torque specifications should be followed to avoid leaks or damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39403 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and integrated reservoir contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52089071337653,"sku":"BKKX-M39403","price":99.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39403_Fro.jpg?v=1775148225","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39403-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}