{"product_id":"dorman-m630138-brake-master-cylinder","title":"Dorman M630138 Brake Master Cylinder","description":"\u003ch2\u003eOverview of Dorman Brake Master Cylinder for Lexus RX300\u003c\/h2\u003e\u003cp\u003eThe Dorman M630138 brake master cylinder is designed specifically for the Lexus RX300, providing reliable brake hydraulics performance. This aluminum master cylinder features a 1-inch bore diameter and is engineered to meet the demands of your vehicle's braking system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Lexus RX300 models\u003c\/li\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 two outlets with M12 x 1.0 thread size\u003c\/li\u003e\n\u003cli\u003eDoes not include reservoir, sensor, or mounting hardware\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M630138 brake master cylinder is a precision-engineered component made from aluminum to ensure strength and corrosion resistance. It features a 1-inch bore diameter, which is critical for maintaining proper hydraulic pressure in the brake system. This master cylinder includes two outlets, both with M12 x 1.0 thread pitch, designed for secure and leak-free connections to the brake lines. Note that this part does not come with a reservoir or sensor, and mounting hardware is not included, so these components must be sourced separately if needed.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper brake pedal feel and responsiveness on Lexus RX300\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eSolves issues related to inconsistent hydraulic pressure in brake lines\u003c\/li\u003e\n\u003cli\u003eAddresses brake system failures due to internal cylinder wear or damage\u003c\/li\u003e\n\u003cli\u003eImproves overall braking system reliability and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Lexus RX300 before installation\u003c\/li\u003e\n\u003cli\u003eBrake fluid reservoir and sensors must be transferred or replaced separately\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for outlet fittings (M12 x 1.0 thread)\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and connections for leaks post-installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M630138 brake master cylinder to meet or exceed OEM standards for fit and function on the Lexus RX300. The aluminum construction provides durability and resistance to corrosion. While mounting hardware and reservoir are not included, the master cylinder itself is backed by Dorman's quality control processes. Please refer to Dorman's official warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792226943157,"sku":"BKKX-M630138","price":128.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630138_Fro.jpg?v=1774997622","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630138-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}