Bosch 0204777576 Power Brake Booster

Bosch Hydro-Boost Brake Booster

Bosch 0204777576 is a hydraulic power brake booster assembly for vehicles using hydro-boost brake assist. It includes the mounting bracket and is supplied without the master cylinder, mounting hardware, or gasket/seal. This Bosch Brake Booster line part is built for direct replacement service on select Chevrolet Express and GMC Savana applications.

Key Features

• Hydraulic booster type for power brake assist
• Mounting bracket included for installation support
• Master cylinder not included
• Mounting hardware not included
• Gasket or seal not included
• Part number 0204777576 for ordering and fitment verification

Product Details

This Bosch hydro-boost assembly is a brake booster replacement for select full-size vans, including Chevrolet Express 1500, Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 1500, GMC Savana 2500, and GMC Savana 3500. The hydraulic design uses power steering pressure to assist braking, making it a direct-fit service part for vehicles equipped with hydro-boost brake assist. Bosch 0204777576 also cross-references 19371359 for the same application.

The Bosch Brake Booster product line focuses on replacement brake hardware built to match the original hydraulic booster layout. For buyers searching by vehicle, this part is a fit for Chevrolet Express and GMC Savana brake booster replacement needs across the listed model years.

Fitment

• Fits 2003-2007 Chevrolet Express 2500, Brake Booster
• Fits 2003-2007 Chevrolet Express 3500, Brake Booster
• Fits 2003-2007 GMC Savana 2500, Brake Booster
• Fits 2003-2007 GMC Savana 3500, Brake Booster
• Fits 2003 Chevrolet Express 1500, Brake Booster
• Fits 2003 GMC Savana 1500, Brake Booster

Common Repair Uses

• Restores brake assist when the hydro-boost unit is worn or leaking
• Addresses hard brake pedal feel caused by booster failure
• Helps correct reduced braking assist on Chevrolet Express and GMC Savana vans
• Replaces a damaged or corroded brake booster assembly
• Supports repair of hydraulic brake assist issues tied to the booster unit

Installation Notes

Verify hydraulic brake assist configuration before installation and confirm the master cylinder, seals, and mounting hardware condition separately, since they are not included. Inspect the mounting bracket interface, hydraulic connections, and surrounding brake components during replacement. Professional installation is recommended for brake system service.

Quality Assurance

Bosch supplies brake system components with OE-focused engineering and application-specific fitment. Part number 0204777576 is identified as a Bosch hydro-boost assembly for the listed Chevrolet Express and GMC Savana applications.