Genuine 472103SG0A Brake Booster Assembly for Nissan Sentra

The Genuine 472103SG0A Brake Booster Assembly is an OEM vacuum-assisted power brake booster designed specifically for 2013-2019 Nissan Sentra models. This critical braking system component utilizes engine vacuum to amplify brake pedal force, providing enhanced stopping power with minimal pedal effort.

Key Features:

• Single diaphragm design with 10.59-inch (268.986mm) diaphragm diameter
• M8 x 1.25 master cylinder stud thread size for proper fitment
• Steel construction with durable vacuum chamber design
• Sold without master cylinder (booster assembly only)
• Direct OEM replacement part - ensures perfect fit and function
• Genuine Nissan quality backed by manufacturer warranty

This brake booster mounts between the brake master cylinder and firewall, using engine vacuum to multiply the force applied to the brake pedal. When functioning properly, it allows drivers to achieve maximum braking performance with normal pedal pressure. The booster includes an internal check valve to maintain vacuum pressure even when the engine is off, providing several assisted brake applications after shutdown.

Installation Note: A new gasket should be used between the booster and spacer during installation. Input rod length must be properly adjusted before installation to ensure correct brake pedal height and operation.