FILTERUP 52-7371 Hydraulic Power Brake Booster for Chevy Avalanche, Silverado Classic & GMC Sierra Classics (2003-2007)

Overview

The FILTERUP 52-7371 hydraulic power brake booster is engineered as a direct-fit upgrade for a range of GM pickups and SUVs from the early 2000s. Instead of relying on engine vacuum, it uses hydraulic pressure from the power steering system to amplify braking force, helping maintain a consistent pedal feel across varying speeds and loads. An integrated spring and rod assembly means you won’t need to transfer components from the original unit, simplifying installation and reducing part handling.

Key features

• Master Cylinder Stud Thread Size: M10x1.5; built-in spring and rod assembly for a complete upgrade.
• Direct replacement design with multiple OE numbers (178-1031, 52-7371, 19371356, 15126867, 15167550, 15183760, 15212480, 15218247, 15814411, 15854059).
• Braking power boosted by hydraulic pressure from the power steering pump, independent of engine vacuum.
• Premium aluminum housing with reinforced construction for durability and long life.
• Optimized for larger vehicles and heavy-duty use, helping maintain braking performance under load.

Fitment and replacement numbers

• Compatible with Chevy Avalanche 2500, Silverado 1500 Classic/HD, Silverado 2500 HD, Silverado 3500; GMC Sierra 1500 Classic/HD, Sierra 2500 Classic, Sierra 3500; Yukon XL 2500 (2003–2007).
• Replacement numbers include 178-1031, 52-7371, 19371356, 15126867, 15167550, 15183760, 15212480, 15218247, 15814411, 15854059.

Real-world use and benefits

• Maintains braking performance independent of engine vacuum, useful in varied driving conditions.
• Supports strong braking response for larger trucks during towing or highway merges.
• Offers a consistent pedal feel thanks to an integrated, reliable design.

Quality and durability

• Crafted from premium aluminum with a reinforced housing for maximum strength and a longer service life.
• Engineered for durability in demanding environments and temperature variations.

Compatibility notes: ensure model year and trim match before purchase; refer to product images for detailed fitment. This booster is designed to be a seamless replacement for your OE unit, helping you restore confident braking performance without modifying the rest of the braking system.