{"product_id":"dorman-m390365-brake-master-cylinder","title":"Dorman M390365 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder M390365\u003c\/h2\u003e\u003cp\u003eThe Dorman Brake Master Cylinder M390365 is designed specifically for Toyota Land Cruiser and Lexus LX450 models. This aluminum master cylinder includes a reservoir and sensor, engineered to maintain reliable brake hydraulics performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with sensor for brake system monitoring\u003c\/li\u003e\n\u003cli\u003eTwo outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: 10 mm\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 M390365 brake master cylinder is a precision-engineered component made from aluminum to provide strength and corrosion resistance. It features a 1-inch bore diameter, which is critical for maintaining proper hydraulic pressure in the brake system. The included reservoir allows for brake fluid storage and easy monitoring, while the integrated sensor supports electronic brake system diagnostics. With two outlets, including a rearward outlet sized M10 x 1.0 and a secondary outlet thread diameter of 10 mm, this master cylinder is designed to meet the exact specifications required by Toyota Land Cruiser and Lexus LX450 vehicles. Note that mounting hardware is not included, so ensure compatibility with existing brake system components during installation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eToyota Land Cruiser\u003c\/li\u003e\n\u003cli\u003eLexus LX450\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is intended for use in brake hydraulic systems where reliable pressure generation and fluid management are essential for safe braking performance.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or sponginess due to internal leaks\u003c\/li\u003e\n\u003cli\u003eBrake fluid reservoir leaks or damage\u003c\/li\u003e\n\u003cli\u003eFaulty brake system sensor readings\u003c\/li\u003e\n\u003cli\u003eInconsistent hydraulic pressure affecting braking response\u003c\/li\u003e\n\u003cli\u003eWear or corrosion in original master cylinder components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with Toyota Land Cruiser or Lexus LX450 before installation\u003c\/li\u003e\n\u003cli\u003eEnsure brake fluid reservoir is properly filled and free of contaminants\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eCheck sensor connections for secure fit and proper function\u003c\/li\u003e\n\u003cli\u003eUse existing mounting hardware or source compatible hardware as it is not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction provides durability and resistance to corrosion. This part includes a sensor to support brake system diagnostics. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792157704373,"sku":"BKKX-M390365","price":143.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390365_Fro.jpg?v=1774997577","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390365-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}