{"product_id":"dorman-m630655-brake-master-cylinder","title":"Dorman M630655 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Chevrolet Cobalt and Pontiac G5\u003c\/h2\u003e\u003cp\u003eThe Dorman M630655 brake master cylinder is engineered to restore proper brake hydraulics for Chevrolet Cobalt and Pontiac G5 models. Designed with precision, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaster cylinder bore diameter: 0.875 inches for accurate fluid displacement\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 sensor to monitor brake fluid levels\u003c\/li\u003e\n\u003cli\u003eTwo outlet ports with rearward outlet size M10 x 1.0 and secondary outlet thread diameter M12 x 1.0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M630655 brake master cylinder features a 0.875-inch bore diameter, which is critical for maintaining the correct hydraulic pressure in the brake system. Its aluminum construction offers strength and resistance to corrosion, extending the service life of the component. This master cylinder comes with an integrated reservoir and sensor, allowing for efficient brake fluid management and monitoring. The two outlets provide proper fluid distribution, with precise thread sizes (M10 x 1.0 rearward outlet and M12 x 1.0 secondary outlet) to ensure secure connections within the brake hydraulic system.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake master cylinder is compatible with Chevrolet Cobalt and Pontiac G5 vehicles, making it a suitable replacement part for brake hydraulic repairs on these models. The part number M630655 corresponds specifically to these applications, ensuring proper fit and function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure for consistent braking performance\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eAddresses brake pedal issues such as sponginess or sinking\u003c\/li\u003e\n\u003cli\u003eResolves sensor-related brake fluid warnings\u003c\/li\u003e\n\u003cli\u003ePrevents brake system failure due to master cylinder malfunction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M630655 brake master cylinder, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air pockets and verify that all outlet connections match the specified thread sizes (M10 x 1.0 and M12 x 1.0). Use appropriate tools to avoid damaging the aluminum housing or sensor components. This part does not include mounting hardware, so retain original fasteners or acquire compatible replacements as needed.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable operation under normal driving conditions. 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":51915818991797,"sku":"BKKX-M630655","price":116.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M630655_Fro.jpg?v=1774997728","url":"https:\/\/www.partcatalog.com\/products\/dorman-m630655-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}