{"product_id":"dorman-h621978-brake-hydraulic-hose","title":"Dorman H621978 Brake Hydraulic Hose - Rear Left","description":"\u003ch2\u003eReliable Brake Hydraulic Hose for Infiniti FX50, G37, and QX70\u003c\/h2\u003e\u003cp\u003eThe Dorman H621978 brake hydraulic hose is designed to provide dependable brake fluid transfer for select Infiniti models. Engineered with durable materials, this flexible hose ensures consistent braking performance for your Infiniti FX50, G37, and QX70 vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Infiniti FX50, G37, and QX70 models\u003c\/li\u003e\n\u003cli\u003eFlexible brake hydraulic hose constructed from EPDM rubber\u003c\/li\u003e\n\u003cli\u003eBlack outer sleeve made of durable rubber for protection\u003c\/li\u003e\n\u003cli\u003eEnds feature treated steel fittings: junction type (End 1) and female type (End 2)\u003c\/li\u003e\n\u003cli\u003eOverall length of 13.54 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eIncludes one brake hose; mounting hardware and brackets not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Construction and Precise Fitment\u003c\/h2\u003e\u003cp\u003eThis Dorman brake hydraulic hose (part number H621978) is built with an EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental factors. Both ends of the hose feature treated steel fittings—End 1 is a junction fitting with an M11 x 1.0 thread diameter, while End 2 is a female fitting with an M10 x 1.0 inside diameter—ensuring secure and leak-free connections within the brake system. With an overall length of 13.54 inches, this hose is designed to match the original equipment specifications for Infiniti FX50, G37, and QX70 models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplaces worn or cracked brake hydraulic hoses causing fluid leaks\u003c\/li\u003e\n\u003cli\u003eRestores proper brake fluid flow for consistent braking response\u003c\/li\u003e\n\u003cli\u003eAddresses hose swelling or bulging under pressure\u003c\/li\u003e\n\u003cli\u003eEliminates brake pedal softness due to hose failure\u003c\/li\u003e\n\u003cli\u003ePrevents contamination and brake fluid loss from damaged fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman H621978 brake hydraulic hose requires basic mechanical skills and proper brake system knowledge. Before installation, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, avoiding contamination of the brake fluid system. Use appropriate tools to disconnect the treated steel fittings, noting the thread sizes (M11 x 1.0 for End 1 and M10 x 1.0 for End 2). After installing the new hose, bleed the brake system thoroughly to remove air and verify leak-free connections. This hose does not include mounting hardware or brackets, so reuse existing components or source replacements as needed.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the H621978 brake hydraulic hose to meet or exceed OEM standards for durability and performance. The use of EPDM rubber and treated steel fittings ensures resistance to corrosion and brake fluid exposure. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official documentation for complete warranty information.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43785777217717,"sku":"BKKX-H621978","price":32.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_H621978_Ang.jpg?v=1774996867","url":"https:\/\/www.partcatalog.com\/products\/dorman-h621978-brake-hydraulic-hose","provider":"PartCatalog","version":"1.0","type":"link"}