{"product_id":"dorman-m105118-brake-master-cylinder","title":"Dorman M105118 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Chevrolet and GMC Vans\u003c\/h2\u003e\u003cp\u003eThe Dorman M105118 brake master cylinder is engineered to restore proper brake hydraulics in Chevrolet and GMC vans, including G10, G20, P20, and P2500 models. Designed with durable cast iron and precise bore diameters, this master cylinder ensures consistent brake fluid pressure for safe stopping performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet G10, G20, P20, and GMC P2500 models\u003c\/li\u003e\n\u003cli\u003eConstructed from durable cast iron for long-lasting use\u003c\/li\u003e\n\u003cli\u003eIncludes reservoir for brake fluid storage\u003c\/li\u003e\n\u003cli\u003eDual outlet design with rearward outlet size 1\/2-20 and secondary outlet thread diameter 9\/16-18\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameters of 1.125 and 1.563 inches for accurate hydraulic control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman M105118 brake master cylinder features a cast iron body that provides strength and resistance to wear under demanding braking conditions. It includes a reservoir to hold brake fluid, eliminating the need for a separate component. The dual outlet design with two outlets allows for efficient brake fluid distribution, with a rearward outlet size of 1\/2-20 and a secondary outlet thread diameter of 9\/16-18. The master cylinder bore diameters of 1.125 and 1.563 inches are designed to match the hydraulic requirements of the specified Chevrolet and GMC van models, ensuring proper brake pedal feel and stopping power.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores brake fluid pressure in Chevrolet G10, G20, P20, and GMC P2500 vans\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking master cylinders causing brake pedal sinking or sponginess\u003c\/li\u003e\n\u003cli\u003eAddresses brake fluid reservoir leaks or contamination issues\u003c\/li\u003e\n\u003cli\u003eSolves inconsistent brake pedal response due to internal cylinder wear\u003c\/li\u003e\n\u003cli\u003eImproves overall brake system reliability and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman M105118 brake master cylinder, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air and achieve optimal hydraulic pressure. Note that mounting hardware is not included, so retain original hardware or source compatible fasteners. Verify outlet thread sizes (1\/2-20 rearward and 9\/16-18 secondary) to ensure proper brake line connections.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman brake master cylinders are manufactured to meet or exceed OEM specifications, providing reliable performance for Chevrolet and GMC vans. This part is backed by Dorman's quality standards, ensuring durability and consistent operation. Please refer to Dorman's official warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915815977141,"sku":"BKKX-M105118","price":81.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M105118_Fro.jpg?v=1774997534","url":"https:\/\/www.partcatalog.com\/products\/dorman-m105118-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}