Dorman H621682 Brake Hydraulic Hose - Rear Left, Rear Right or Rear Right Outer

Dorman H621682 Brake Hydraulic Hose

Dorman H621682 is a brake hydraulic hose engineered for specific rear brake positions on Chevrolet Silverado 3500 HD, Chevrolet Silverado 3500, GMC Sierra 3500 HD, and related heavy-duty applications. It is built to match the original hose’s fit, function, and performance for a direct replacement during brake service.

• Flexible brake hose construction for rear brake routing
• EPDM rubber hose material with a black outer sleeve
• Treated steel fittings for durability at the connection points
• Banjo end 1 with 10 mm thread diameter
• Female end 2 with M10 x 1.0 fitting size
• Gasket or seal included for the connection points
• Overall length: 11.66 in.
• Compatible with rear right, rear right outer, and rear left positions depending on vehicle application

This brake hose is designed for direct replacement use on 2011-2019 Chevrolet Silverado 3500 and Silverado 3500 HD, plus 2011-2019 GMC Sierra 3500 HD applications listed below. Dorman H621682 follows the original hose layout and connection style to support proper brake fluid transfer in the rear brake system. This part cross-references Raybestos Brakes BH383479 and Sunsong 2201347 for the same application.

Vehicle Fitment

• Fits 2018-2019 Chevrolet Silverado 3500 HD, rear right, w/Dual Rear Wheels (DRW); wo/RPO Code GTY (Wide Track Rear Axle)
• Fits 2018-2019 GMC Sierra 3500 HD, rear right, w/Dual Rear Wheels (DRW); wo/RPO Code GTY (Wide Track Rear Axle)
• Fits 2018 Chevrolet Silverado 3500, rear right, w/Dual Rear Wheels (DRW)
• Fits 2017-2018 Chevrolet Silverado 3500 HD, rear right, w/Dual Rear Wheels (DRW)
• Fits 2017-2018 GMC Sierra 3500 HD, rear right, w/Dual Rear Wheels (DRW)
• Fits 2017 Chevrolet Silverado 3500, rear right, w/Dual Rear Wheels (DRW); wo/Wide Trac Axle
• Fits 2017 Chevrolet Silverado 3500 HD, rear right, w/Dual Rear Wheels (DRW); wo/Wide Trac Axle
• Fits 2017 GMC Sierra 3500 HD, rear right, w/Dual Rear Wheels (DRW); wo/Wide Trac Axle
• Fits 2015-2016 Chevrolet Silverado 3500, rear right, wo/Wide Track Axle; w/Dual Rear Wheels (DRW)
• Fits 2015-2016 Chevrolet Silverado 3500 HD, rear right, wo/Wide Track Axle; w/Dual Rear Wheels (DRW)
• Fits 2015-2016 Chevrolet Silverado 3500 HD, rear right outer, w/Dual Rear Wheels (DRW)
• Fits 2015-2016 GMC Sierra 3500 HD, rear right, wo/Wide Track Axle; w/Dual Rear Wheels (DRW)
• Fits 2015-2016 GMC Sierra 3500 HD, rear right outer, w/Dual Rear Wheels (DRW)
• Fits 2014 Chevrolet Silverado 3500 HD, rear left, w/Dual Rear Wheels (DRW)
• Fits 2014 Chevrolet Silverado 3500 HD, rear left, wo/Wide Track Axle; w/Dual Rear Wheels (DRW)
• Fits 2014 GMC Sierra 3500 HD, rear left, w/Dual Rear Wheels (DRW)
• Fits 2014 GMC Sierra 3500 HD, rear left, wo/Wide Track Axle; w/Dual Rear Wheels (DRW)
• Fits 2011-2013 Chevrolet Silverado 3500, rear left, w/Dual Rear Wheels (DRW); wo/Wide Track Axle
• Fits 2011-2013 Chevrolet Silverado 3500 HD, rear left, w/Dual Rear Wheels (DRW); wo/Wide Track Axle
• Fits 2011-2013 GMC Sierra 3500 HD, rear left, w/Dual Rear Wheels (DRW); wo/Wide Track Axle

Common Repair Uses

• Restoring brake fluid flow to a damaged or leaking rear hose
• Replacing a cracked, swollen, or corroded flexible brake line
• Correcting soft pedal feel caused by hose deterioration
• Addressing brake fluid seepage at the hose connection points
• Repairing rear brake service issues on heavy-duty Silverado and Sierra models

Installation Notes

Verify the vehicle’s rear axle configuration, wheel setup, and brake position before ordering. This hose uses a banjo fitting on one end and a female M10 x 1.0 connection on the other, so matching the original routing and end style is important for proper installation. Mounting hardware and bracket are not included.

Quality Assurance

Dorman manufactures this brake hydraulic hose to match the original part’s fit, function, and performance on the listed vehicles and positions. The EPDM rubber hose construction, treated steel fittings, and included gaskets support a service replacement built for long-term brake system repair.