GM GENUINE PARTS power brake booster vacuum check valve kit 15823207 — kit with check valves & grommet for OEM fit and restored br

GM Genuine Parts 15823207 is a factory-quality brake booster vacuum check valve kit that restores one-way vacuum flow to the power brake booster for reliable braking assistance.

Designed and validated for GM vehicles, this kit includes the check valves and grommet required to maintain a sealed, one-directional vacuum path between the engine and the power brake booster. Proper operation prevents atmospheric air from entering the booster when the engine is off or a vacuum hose is compromised, helping maintain consistent brake pedal feel and booster readiness. These parts follow the specifications used during original vehicle assembly and are backed by General Motors engineering and testing standards.

How does this valve kit support braking performance?

The check valve kit ensures the brake booster retains vacuum so the hydraulic braking system receives consistent assist when required. By permitting vacuum to flow only toward the booster, it prevents loss of assist during engine-off conditions or when a leak occurs, helping preserve pedal firmness and stopping confidence.

• One-way valve design keeps vacuum isolated in the booster.
• Reduces risk of degraded pedal feel after engine restart.
• OEM-spec fit minimizes air leaks compared with generic replacements.

What parts are included and how do they fit my vehicle?

The kit contains the vacuum check valves and the rubber grommet necessary for installation at the booster and vacuum hose junction. GM Genuine Parts are engineered to match the original equipment dimensions and materials, so the components install directly without modification on compatible Chevrolet, Buick, GMC, and Cadillac models specified for part 15823207.

• Includes both inlet/outlet check valves and the correct grommet.
• Manufactured to original GM tolerances for fit and sealing.
• Plug-and-play replacement—no special tools or alterations needed in most cases.

When should I replace the brake booster check valves?

Replace the check valves if you notice a hard or inconsistent brake pedal, hissing sounds near the booster, or if a leak is found in the vacuum hose assembly. Preventative replacement during booster service or when vacuum leaks are suspected helps avoid degraded brake assist and maintains safe braking response.

• Symptoms: firm pedal, delayed assist, audible vacuum escape.
• Inspect during routine brake or vacuum hose maintenance.
• Replace as part of booster overhaul to ensure full system integrity.

Who this is for: This GM Genuine Parts check valve kit is intended for vehicle owners, technicians, and restoration specialists who need a direct-fit, factory-backed replacement for the brake booster vacuum check valves on applicable Chevrolet, Buick, GMC, and Cadillac models. It's ideal when you want OE-matched components—confirmed by GM engineering—to preserve original braking behavior and reliability without adapting aftermarket workarounds.

Features and considerations: GM Genuine Parts may have previously been branded as ACDelco GM Original Equipment (OE). These components are designed, engineered, and tested to GM standards, with regular updates to materials and designs to incorporate manufacturing improvements. Using GM-validated parts helps maintain the performance and safety characteristics intended for your vehicle.