{"product_id":"dorman-m390371-brake-master-cylinder","title":"Dorman M390371 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Oldsmobile and Pontiac Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman M390371 brake master cylinder is designed specifically for select Oldsmobile and Pontiac models, including the Montana, Silhouette, and Trans Sport. This aluminum master cylinder features an integrated reservoir and sensor, providing a precise and dependable braking solution.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M390371 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 1 inch for consistent hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eConstructed from durable aluminum material for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to monitor brake system status\u003c\/li\u003e\n\u003cli\u003eFour outlet ports to support complex brake hydraulic systems\u003c\/li\u003e\n\u003cli\u003eSecondary outlet thread diameter: 10 mm\u003c\/li\u003e\n\u003cli\u003eRearward outlet size: M10 x 1.0 thread and unthreaded for versatile installation\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder only; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M390371 brake master cylinder is engineered to meet the specifications of Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport models. Its 1-inch bore diameter ensures proper hydraulic pressure for effective braking performance. Made from aluminum, this master cylinder offers enhanced durability and resistance to corrosion compared to traditional materials. The included reservoir simplifies brake fluid management, while the integrated sensor provides real-time monitoring of brake system conditions. With four outlets and specific thread sizes, this master cylinder supports complex brake hydraulic configurations commonly found in these vehicle models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper brake fluid pressure in Oldsmobile Montana and Pontiac Silhouette brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal sponginess\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid reservoir leaks or sensor malfunctions\u003c\/li\u003e\n\u003cli\u003eSupports brake system repairs requiring multiple outlet connections\u003c\/li\u003e\n\u003cli\u003eImproves brake system reliability in Pontiac Trans Sport vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport models before installation\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; retain original hardware or source separately\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air\u003c\/li\u003e\n\u003cli\u003eVerify sensor connections for proper brake system monitoring\u003c\/li\u003e\n\u003cli\u003eInspect all brake lines and fittings for wear or damage during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M390371 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to long-term reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43792158916789,"sku":"BKKX-M390371","price":115.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M390371_Fro.jpg?v=1774997578","url":"https:\/\/www.partcatalog.com\/products\/dorman-m390371-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}