Cardone 52-7370 Power Brake Booster

Hydro-Boost Brake Booster for GM SUVs

The Cardone 52-7370 Hydro-Boost Power Brake Booster is a remanufactured hydraulic brake booster built for direct replacement in select Cadillac, Chevrolet, and GMC applications. It is engineered to restore brake assist performance with O.E.-style fit and function for vehicles such as the Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon.

Key Features

• Remanufactured to match original equipment performance
• 100% tested for reliable fit and function
• 100% O.E. quality seals and check valves installed
• Rust-prohibitive finish helps extend service life
• Guaranteed fit and function
• Master cylinder output rods are pre-adjusted when included
• Cast iron construction with black finish
• Master cylinder not included

Product Details

Cardone Hydro-Boost Power Brake Booster 52-7370 is part of the Hydro-Boost Power Brake Booster line, which focuses on remanufactured hydraulic brake assist components for GM trucks and SUVs. Each unit is re-engineered, inspected, and tested to meet original performance expectations, with design updates applied where practical to improve durability over the original part. This booster uses an M10 x 1.50 master cylinder stud thread size and includes a hydraulic booster, O-ring kit, and instruction sheet.

This part cross-references Cadillac 15854058 and Chevrolet 15126866 for the same application.

What It Helps Fix

• Hard brake pedal feel caused by a worn hydro-boost unit
• Reduced power brake assist during normal driving or towing
• Brake fluid leaks at the booster assembly
• Inconsistent brake response from failing internal seals or check valves
• Noise or poor operation related to a deteriorated hydraulic booster

Installation Notes

Compatible with Hydro-Boost systems only. Master cylinder is not included. Verify brake code JH2 where listed in fitment notes, and confirm the vehicle’s Service Parts Identification sticker before ordering. Check the master cylinder stud thread size and compare the original booster configuration before installation. Fits 2003-2006 Cadillac Escalade, 2003-2006 Cadillac Escalade ESV, 2003-2006 Cadillac Escalade EXT, 2003-2006 Chevrolet Tahoe, and 2003-2006 GMC Yukon with Hydro-Boost applications as listed.

• Fits 2004-2006 Chevrolet Avalanche 1500, N/A
• Fits 2004-2006 Chevrolet Suburban 1500, N/A
• Fits 2003-2006 Chevrolet Suburban 2500, N/A, with Hydro-Boost; with Brake Code JH2; without Master Cylinder
• Fits 2003-2006 GMC Yukon XL 1500, N/A
• Fits 2003-2006 GMC Yukon XL 2500, N/A, with Hydro-Boost; with Brake Code JH2; without Master Cylinder
• Fits 2003 Chevrolet Avalanche 1500, N/A, with Hydro-Boost; with Brake Code JH2; without Master Cylinder
• Fits 2003 Chevrolet Suburban 1500, N/A, with Hydro-Boost; with Brake Code JH2; Hydro-Boost pump has 1 pressure line and 2 return lines; without Master Cylinder

Quality Assurance

Cardone remanufactures this booster to O.E. performance standards and tests every unit before release. The process includes new seals and check valves, plus a rust-resistant finish to support long-term service in demanding brake systems.