{"product_id":"raybestos-mc390186-brake-master-cylinder","title":"Raybestos MC390186 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Buick, Cadillac, Oldsmobile, Pontiac\u003c\/h2\u003e\u003cp\u003eThe Raybestos Element3; New Brake Master Cylinder MC390186 is engineered to restore precise brake hydraulics in select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed with durable aluminum construction and specific port threading, this master cylinder ensures consistent brake fluid control and system integrity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from lightweight, corrosion-resistant aluminum\u003c\/li\u003e\n\u003cli\u003eFeatures a 1.000-inch bore size for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eIncludes 2 mounting holes with 0.413-inch diameter for secure installation\u003c\/li\u003e\n\u003cli\u003eEquipped with 4 ports: primary port thread M10x1 and secondary port thread M12x1\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM models including Buick LeSabre, Cadillac DeVille, and Pontiac Bonneville\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Raybestos Element3; New Product Line\u003c\/h2\u003e\u003cp\u003eThe Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and material quality. This brake master cylinder is part of that line, offering aluminum construction and exact port threading specifications to meet OEM requirements for various GM vehicles. The Element3; New series is designed to provide consistent performance and durability in brake system applications.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Raybestos MC390186 brake master cylinder is crafted from aluminum to resist corrosion and reduce weight, contributing to overall vehicle efficiency. The 1.000-inch bore size is calibrated to provide the correct hydraulic pressure for smooth brake operation. With two mounting holes sized at 0.413 inches in diameter, installation is secure and stable. The master cylinder includes four ports, with primary and secondary port threads of M10x1 and M12x1 respectively, ensuring compatibility with brake lines and fittings on compatible Buick, Cadillac, Oldsmobile, and Pontiac models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Buick 60 Special and LeSabre models\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders in Cadillac DeVille and Fleetwood\u003c\/li\u003e\n\u003cli\u003eSolves brake pedal sponginess or failure in Oldsmobile 88 and 98 series\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid leaks in Pontiac Bonneville and Riviera\u003c\/li\u003e\n\u003cli\u003eImproves brake system responsiveness on GM Commercial Chassis vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with vehicle make and model before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications on mounting bolts to avoid damage\u003c\/li\u003e\n\u003cli\u003eInspect brake lines and fittings for wear or damage during replacement\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer guidelines for brake fluid type and maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eRaybestos manufactures the MC390186 brake master cylinder to meet strict quality standards, using durable aluminum material and precise machining. This part is designed to match OEM specifications for reliable brake system performance. Warranty details are provided by Raybestos and typically cover defects in material and workmanship under normal use conditions.\u003c\/p\u003e","brand":"Raybestos","offers":[{"title":"Default Title","offer_id":44427847631029,"sku":"BDBL-MC390186","price":88.23,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RS_MC390186_Fro.jpg?v=1775018793","url":"https:\/\/www.partcatalog.com\/products\/raybestos-mc390186-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}