BRAKE MASTER CYLINDER COVER GASKET 79 × 42 MM HARLEY-DAVIDSON OEM TYPE

79 × 42 mm gasket for Harley-Davidson brake master cylinder cover

Restore the correct sealing of the brake fluid reservoir with this replacement gasket for brake master cylinder cover. With dimensions of 79 × 42 mm, it is designed for OEM-style reservoirs and can be used in various front and rear Harley-Davidson applications.

A deteriorated, hardened, or deformed gasket can compromise the cover's seal. Replacing it during brake system maintenance helps keep the reservoir properly closed and reduces the risk of leaks or brake fluid contamination.

Main features

• Replacement gasket for brake master cylinder reservoir cover.
• Dimensions: 79 × 42 mm.
• Designed for OEM-style reservoirs.
• Suitable for selected front and rear applications.
• Recommended for replacing hardened, deformed, or damaged gaskets.
• Does not include cover, reservoir, or brake master cylinder.

Technical data

Front compatibility with Harley-Davidson

Compatible with the front brake master cylinder of all Harley-Davidson models from late 1985 to 1995, as long as they retain an OEM-style reservoir compatible with this 79 × 42 mm gasket.

• All Harley-Davidson models, front position: late 1985-1995.

Rear compatibility with Harley-Davidson

• Harley-Davidson FXWG Wide Glide: 1985-1986.
• Harley-Davidson FLST Softail: from late 1987 to 1999.
• Harley-Davidson Dyna: 1991-2005.
• Harley-Davidson XL Sportster: from late 1985 to 2003.

Check before ordering

The mounting position changes depending on the model and year. This same gasket may correspond to the front or rear master cylinder depending on the motorcycle.

Before ordering, check the measurements of the existing gasket, the position of the master cylinder, and that the reservoir retains an OEM-style configuration. Aftermarket brake master cylinders may use different gaskets.

Installation and maintenance

Remove the old gasket and carefully clean the mating surfaces of the cover and reservoir. Avoid using sharp tools or products that could damage the housing or contaminate the brake fluid.

Install the new gasket without folds or twists and tighten the cover screws evenly, following the procedure indicated in the service manual.

After assembly, check that there are no leaks around the cover. Use only the type of brake fluid specified for the motorcycle and protect painted or chrome surfaces from possible spills.