ATE 300166 Power Brake Booster

ATE Original Vacuum Brake Booster

The ATE Original Brake Booster, Vacuum is built for Mercedes-Benz braking systems that need consistent pedal assist and reliable response. This ATE brake booster uses a dual diaphragm design and a 7-inch metal housing to support smooth braking performance in stop-and-go traffic and during emergency stops.

ATE Original brake boosters are positioned as OE-quality replacement parts, with careful material selection and precise workmanship aimed at reducing premature wear. Part number 300166 is a direct-fit style vacuum power brake booster for select Mercedes-Benz C-Class and CLK-Class applications.

Key Features

• Vacuum power brake booster for brake pedal assist
• Dual diaphragm construction for stable assist output
• 7-inch metal housing
• Brake pedal rod extension included
• Master cylinder not included
• Mounting hardware not included
• Mounting bracket not included

Detailed Description

ATE Original Brake Booster, Vacuum, part number 300166, is engineered for Mercedes-Benz vehicles that require dependable vacuum-assisted braking. The dual diaphragm layout helps deliver consistent pedal feel, while the metal housing supports long-term durability in demanding daily driving conditions. This part is a strong match for drivers replacing a worn brake booster on a Mercedes-Benz C230, C280, C350, C55 AMG, C240, C320, C32 AMG, CLK320, CLK500, CLK55 AMG, CLK350, CLK550, CLK63 AMG, or SL65 AMG.

ATE Original product line components are built to the same quality standard as replacement parts, with attention to fit, finish, and service life. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Part number 300166 is also referenced by OE-style numbers 0054302830 and 0054305530 for select applications.

What It Helps Address

• Hard brake pedal feel from a failing vacuum booster
• Reduced brake assist during normal driving
• Inconsistent stopping response in stop-and-go traffic
• Brake pedal effort that increases over time
• Wear-related booster noise or loss of vacuum assist

Installation Notes and Tips

Verify the existing booster dimensions, pedal rod setup, and vehicle application before installation. This unit includes the brake pedal rod extension, but does not include the master cylinder, mounting hardware, or mounting bracket. For best results, inspect the vacuum supply line, check for leaks, and confirm proper pedal travel after installation.

Quality Assurance

ATE Original brake boosters are produced with high-quality materials and precise workmanship to support reliable braking performance and reduced premature abrasion. The brand’s OE-quality approach is reflected in the design and construction of part number 300166.