Description

This part is the front master cylinder assembly used in the braking system of Harley-Davidson motorcycles. It is responsible for creating hydraulic pressure when the rider activates the front brake lever, which then operates the front brake calipers and applies pressure to the brake pads.

Key Features:
Material: The master cylinder is typically made from high-quality aluminum or steel, providing strength and durability under high pressure. It may have a corrosion-resistant finish such as chrome or black, which is designed to withstand exposure to the elements and maintain a sleek appearance.
Hydraulic Function: The master cylinder is a key component in the hydraulic braking system. When the rider pulls the brake lever, the master cylinder converts that mechanical force into hydraulic pressure, which is transferred through the brake lines to the front brake calipers.
Fluid Reservoir: The master cylinder includes a fluid reservoir for brake fluid, ensuring that the braking system maintains the necessary hydraulic pressure for effective braking performance.
OEM Design: As an original equipment manufacturer (OEM) part, the HD45019-93 master cylinder is designed to fit Harley-Davidson motorcycles perfectly and provide reliable, consistent braking performance.

Functionality:
Brake Fluid Hydraulic Pressure: When the front brake lever is pulled, the master cylinder uses a piston to push brake fluid from the reservoir into the brake lines. The hydraulic pressure generated then activates the brake calipers, forcing the brake pads to contact the front rotor and slow or stop the motorcycle.
Brake Fluid Reservoir: The master cylinder includes a built-in reservoir that stores brake fluid, ensuring that the hydraulic system functions correctly without air entering the brake lines. Proper fluid levels and condition are crucial to maintaining brake efficiency.
Sealed System: The system is designed to prevent air and contaminants from entering, maintaining the brake fluid in its ideal condition for safe braking.

Applications:
Harley-Davidson Touring Models: The master cylinder is compatible with various Harley-Davidson Touring models like the Road King, Electra Glide, Street Glide, and Ultra Limited, which have hydraulic front brake systems.
Harley-Davidson Softail Models: Softail models, including the Fat Boy, Heritage Softail, and Breakout, may use this type of front master cylinder assembly.
Harley-Davidson Dyna Models: The Dyna models like the Low Rider, Wide Glide, Super Glide, and Fat Bob may be compatible with this master cylinder.
Harley-Davidson Sportster Models: Depending on the year and model, some Sportster bikes may use this front master cylinder assembly.

Possible Models Compatible with:
Harley-Davidson Touring Models: Electra Glide, Road King, Street Glide, Ultra Limited.
Harley-Davidson Softail Models: Fat Boy, Heritage Softail, Breakout.
Harley-Davidson Dyna Models: Low Rider, Wide Glide, Super Glide, Fat Bob.
Harley-Davidson Sportster Models: Certain Sportster models (check with the dealer for specific fitment).