1982–1987 Buick Regal 9" Dual Power Brake Booster, Master Cylinder & Proportioning Valve, Disc / Disc,  Black Out Edition

Upgrade and restore the braking performance of your 1982–1987 Buick Regal with this complete brand-new "Black Out" Power Brake Booster, Master Cylinder & Disc/Drum Proportioning Valve Package.

Designed specifically for G-Body Buick Regals, this complete brake upgrade combines a 9" dual-diaphragm power brake booster, black 1.125" bore oval-style master cylinder, and matching black-out GM-style disc/disc proportioning valve into one convenient package.

The 9" dual-diaphragm booster provides strong, consistent vacuum-assisted braking while helping reduce pedal effort. The matching 1.125" bore master cylinder provides the hydraulic pressure needed for responsive braking, while the disc/disc proportioning valve is designed to properly manage brake pressure between the front rear disc circuits.

Whether you're restoring a classic Regal, replacing worn original components, or upgrading the braking system on a street-driven G-Body, this complete package provides the major components needed to refresh your power brake system with a clean, coordinated appearance.

Complete Kit Includes:

• Brand-New 9" Dual-Diaphragm Power Brake Booster
• Black 1.125" Bore Oval-Style Master Cylinder
• Black-Out GM-Style Disc/Disc Proportioning Valve

9" Dual Power Brake Booster Features:

• Brand-new construction — not remanufactured
• 9" dual-diaphragm design for strong, consistent brake assist
• Helps reduce brake pedal effort
• Durable steel construction with corrosion-resistant finish
• OE-style fit, function, and appearance
• Designed for factory-style vacuum-assisted braking systems
• Direct replacement for applications using Cardone 54-71243 style boosters
• Ideal for restoration, replacement, and brake system upgrades

Black 1.125" Bore Oval-Style Master Cylinder:

• Brand-new master cylinder
• 1.125" bore for responsive hydraulic brake performance
• Classic oval-style GM appearance
• Black finish complements the booster and proportioning valve
• Designed for power brake applications
• Provides a clean, coordinated appearance throughout the engine compartment

Matching Black-Out Disc/Disc Proportioning Valve:

• Brand-new GM-style proportioning valve
• Designed for front disc / disc brake systems
• Helps properly distribute and control hydraulic brake pressure
• Black-out finish provides a clean, understated appearance
• Matching appearance complements the black booster and master cylinder
• Ideal for classic GM and G-Body restoration projects

Features & Benefits:

• Complete power brake package — booster, master cylinder, and proportioning valve
• Designed for 1982–1987 Buick Regal
• 9" dual-diaphragm booster provides strong braking assist
• 1.125" bore master cylinder provides responsive hydraulic operation
• Disc/disc proportioning valve 
• Brand-new components throughout — no remanufactured parts
• Coordinated black-out appearance
• Excellent choice for restoration, replacement, or brake system upgrades
• Helps restore proper pedal feel and vacuum-assisted braking performance
• Convenient way to replace several major brake components at once

Perfect For:

• 1982–1987 Buick Regal
• G-Body restoration projects
• Replacing worn, weak, or leaking brake components
• Upgrading an original power brake system
• Street cars, weekend cruisers, and show-quality builds
• Projects requiring a new booster, master cylinder, and disc/drum proportioning valve

Restore Your G-Body's Braking Performance

Don't settle for a worn-out booster or aging original brake components. Replace the major components of your power brake system with this brand-new 9" Dual Power Brake Booster, Black 1.125" Bore Oval-Style Master Cylinder, and Matching Black-Out Disc/Disc Proportioning Valve Package.

The combination of strong vacuum-assisted braking, a properly sized 1.125" bore master cylinder, and a matching disc/disc proportioning valve makes this an excellent foundation for restoring the braking system on your 1982–1987 Buick Regal.

Brand-new components. Classic GM styling. Modern, dependable braking performance.