ATE 300123 Power Brake Booster

Reliable Vacuum Power Brake Booster for BMW Models

The ATE Original Brake Booster, Vacuum (Part Number 300123) is engineered to restore optimal braking performance for select BMW vehicles. Designed specifically for models such as the BMW Z4, 325Ci, 330Ci, 325i, 325xi, 330i, 330xi, 323Ci, 323i, 328Ci, and 328i, this power brake booster ensures consistent vacuum assistance for safer and more responsive braking.

• Vacuum-type power brake booster for enhanced braking assistance
• Includes brake pedal rod extension for proper fitment
• Durable metal housing with a 10-inch diameter for strength and longevity
• Single diaphragm design for reliable vacuum operation
• Compatible with BMW Z4, 3 Series models including 325Ci, 330Ci, 325i, 325xi, 330i, 330xi, 323Ci, 323i, 328Ci, and 328i
• Part Number 300123 ensures exact replacement fit

About the ATE Original Brake Booster, Vacuum Product Line

The ATE Original Brake Booster, Vacuum product line focuses on delivering precise vacuum power brake boosters that meet OEM specifications. This line emphasizes durability and consistent performance, using quality metal housings and proven diaphragm designs. The 300123 part is a direct replacement component within this line, designed to maintain the integrity of the vehicle's braking system without including master cylinder or mounting hardware, allowing for compatibility with existing brake system components.

Product Details and Specifications

This power brake booster features a vacuum booster type with a single diaphragm, providing reliable vacuum assistance to reduce pedal effort. The metal housing measures 10 inches in diameter, offering robust construction to withstand daily driving conditions. The included brake pedal rod extension ensures proper connection to the brake pedal assembly. Note that this part does not include a master cylinder, mounting hardware, or mounting bracket, so existing components must be reused during installation.

Common Applications and Problem Resolution

• Restores brake pedal responsiveness in BMW 3 Series and Z4 models
• Eliminates hard brake pedal issues caused by failing vacuum boosters
• Addresses vacuum leaks that reduce braking assistance
• Replaces worn or damaged brake boosters to maintain safe stopping power
• Improves overall brake system reliability and driver control

Installation Notes and Tips

Installation of the ATE Original Brake Booster, Vacuum (300123) requires removal of the old booster and careful connection of the brake pedal rod extension. Since mounting hardware and brackets are not included, retain original components for reinstallation. Verify vacuum hose connections and ensure the booster is securely mounted to the firewall. Proper bleeding of the brake system after installation is recommended to maintain brake performance.

Quality Assurance and Warranty

ATE products are manufactured to meet strict quality standards, ensuring durability and performance. The Original Brake Booster, Vacuum line undergoes rigorous testing to comply with OEM specifications. While specific warranty details for part number 300123 should be confirmed at the point of purchase, ATE typically offers coverage against manufacturing defects to provide confidence in product reliability.