Dorman - HELP Brake Master Cylinder Reservoir Cap for General Motors 2000-2009 42042

Brake master cylinder reservoir cap for General Motors 2000-2009 that replaces the original cap to ensure reliable performance.

Built to meet the manufacturer’s design intent for reliable service.

Key Features

• Matches OEM fit and function
• Engineered for durability
• Trusted quality from Dorman experts

Benefits

• Ensures reliable braking performance
• Reduces risk of leaks or failure
• Easy to install with existing master cylinder
• Extends life of brake system

Application

This part is ideal for vehicle owners needing a replacement cap for their General Motors brakes, commonly used when the original cap fails or shows signs of wear.

Fitment Notes

• General Motors 2000-2009
• Compatible w/: General Motors: 84502401 | General Motors: 22688449 | General Motors: 18017209 | General Motors: 18014091 | General Motors: 18060795 | General Motors: 20819283 | General Motors: 18060186 | General Motors: 22795538 | General Motors: 18017123 | General Motors: 18021306 | General Motors: 21010528 | General Motors: 18013963 | General Motors: 84047902 | General Motors: 25813304 | General Motors: 84917020 | General Motors: 20760280 | OE PRO: 18013963

Why Choose Dorman - HELP?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

• Included items not specified by the manufacturer.

Item Dimensions

• 0.8in x 3.5in x 5.5in, 0.1lbs