7-Inch Dual Power Booster with Zinc-Plated 1-1/8 Inch Bore Master Cylinder for 1955-1968 Chevrolet

Upgrade your Chevrolet Impala, Bel Air, or Nomad with LEED Brakes' 7" Dual Diaphragm Zinc Plated Power Brake Booster and Master Cylinder Combo. Designed for a direct fit to your factory firewall, this kit enhances braking performance while maintaining a clean, factory-style appearance. The booster is meticulously hand-polished before receiving a durable yellow zinc finish for long-lasting protection and quality.

Included in this kit is a new 1-1/8" bore cast iron master cylinder, compatible with both front disc/rear drum and 4-wheel disc brake applications. This versatile setup provides improved stopping power, balanced braking, and dependable performance for your classic Chevrolet.

Compatible with Chevrolet models from 1955–1968, including Impala, Bel Air, and Nomad, this 7-inch dual diaphragm booster kit is an ideal upgrade for enhancing safety, reliability, and overall driving confidence.

Chevrolet Impala, Bel Air, Nomad 7" Dual Diaphragm Booster Kit Specifications

• Master Cylinder Bore Size: 1-1/8 in
• Bowl Design: Dual Bowl
• Master Cylinder Material: Cast Iron
• Master Cylinder Finish: Natural
• Reservoir Included: Yes
• Reservoir Material: Cast Iron
• Master Cylinder Cap Included: Yes
• Brake Booster Type: Dual Diaphragm
• Brake Booster Diameter: 7 in.
• Brake Booster Material: Steel
• Brake Booster Finish: Zinc
• Brake Pedal Rod Extension Included: Yes
• Mounting Hardware Included: Uses Original
• Quantity: Kit

LEED Brakes Pushrod Measuring Tool PSA Video

All LEED Brakes booster and master cylinder assemblies are preset before shipping. Watch this short video to learn how to properly measure pushrod depth and verify measuring tool accuracy.

Click here to learn more about why LEED Brakes has added this warning to their products.