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9 in Single Black Firewall Booster & Master Cylinder, 1964-74 AFX

Sleek black-finish brake components by CPP
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Part #
BFM6474BB24-9
Product Takes 7 Days to Ship
$419.00
1964-72 A-Body 1967-69 F-Body 1968-74 X-Body, 9 in Black Single Diaphragm Firewall Brake Booster with 1.125 in Bore Flat Top Master Cylinder and Adjustable Proportioning Valve, works for 2 and 4 Wheel Disc
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Prop 65 warning
The CPP Complete Midnite Series Power Brake Booster Kit W/Flat Top Master (Part Number BFM6474BB24-9) fits 64-72 A-Body, 67-69 F-Body, and 68-74 X-Body. It includes a 9" single black booster and flat top master cylinder. Features an adjustable proportioning valve combo. Compatible with 2 & 4 wheel disc systems.
More Information
Product Name 9 in Single Black Firewall Booster & Master Cylinder, 1964-74 AFX SKU BFM6474BB24-9
Series Midnite Series Bleeder Kit Included Yes
Brake Booster Diameter 9 Brake Booster Finish Black
Brake Booster Type Single Diaphragm Master Cylinder Bore Size 1.125
Master Cylinder Finish Black Master Cylinder Material Aluminum
Master Cylinder Type CPP Left Side Ports Hardware Included Yes
Works With 2 Wheel Disc Yes Works With 4 Wheel Disc Yes
Works With 4 Wheel Drum No Proportioning Valve Type Side Mount Left Hand
Proportioning Valve Included Yes Brake Booster Kit Type Complete Booster Kits
Master Cylinder Included Yes Brake Pedal Extension Rod Included Yes
Warranty Yes Prop65 Yes
Brand CPP MidNite Series Brake Booster Mount Type Firewall
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CPP Power Brake Kit Install Yields Plenty of Whoa Power

Many classic vehicles, including Tri-Five Chevys and pre-1967 cars and trucks, came equipped with single-reservoir master cylinders. While these served well for decades, a failure in any brake hose, wheel cylinder, or line could evacuate the entire system, compromising safety. Upgrading to a dual-reservoir, power-brake setup not only adds redundancy but also reduces pedal effort—an especially welcome change for weekend cruisers and street rods alike.

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CPBK Bleeder Kit Instructions
Master Cylinder Instructions
PVK instructions

This kit includes:

  1. Fixed

  2. P/N: 9SRB-O-BL

    • Description: 9in Black Plated Power Brake Booster for a 64-72 A-Body
    • Quantity: 1

  3. P/N: MNSBMC2

    • Description: Universal Black Firewall Mount Aluminum Power Master Cylinder with Flat Lid Kit
    • Quantity: 1

  4. P/N: H-BBK

    • Description: Basic Booster Install Kit
    • Quantity: 1

  5. P/N: TECH

    • Description: Brake Trouble Shooting Guide
    • Quantity: 1
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