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11 in Single Gold Delco Stamp Firewall Booster & Master Cylinder, 1967-74 AFX

CPP high-performance automotive parts for classic cars
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Part #
6874BB24-11OE
Product Takes 7 Days to Ship
$389.00
1967-72 A-Body 1967-69 F-Body 1968-74 X-Body, 11 in Yellow Zinc Single Diaphragm Delco Stamp Firewall Brake Booster & 1.125 in Bore Master Cylinder and Proportioning Valve, works for 2 and 4 Wheel Disc
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Prop 65 warning
The CPP Complete Power Brake Booster Kit (Part Number 6874BB24-11OE) includes an 11" single gold-plated booster with Delco stamp. It comes with a master cylinder and proportioning valve combo. Compatible with 67-72 A-Body, 67-69 F-Body, and 68-74 X-Body. Suitable for 2 and 4 wheel disc systems.
More Information
Product Name 11 in Single Gold Delco Stamp Firewall Booster & Master Cylinder, 1967-74 AFX SKU 6874BB24-11OE
Brake Booster Diameter 11 Brake Booster Finish Gold
Brake Booster Type Single Diaphragm Master Cylinder Bore Size 1.125
Master Cylinder Finish None Master Cylinder Material Cast Iron
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 Brake Booster Mount Type Firewall
Product Type Brake Boosters
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Modern Stopping Power for Classic Builds: Inside the CPP E-Booster Kit

When building or restoring a classic car, performance upgrades usually start with power and handling—but braking should never be an afterthought. Enter the CPP E-Booster, a next-gen braking solution that’s rewriting the rules for muscle cars. Designed for 1964–72 GMC A-Body, 1967–69 F-Body, and 1968–74 X-Body vehicles, this vacuum-free, electric brake booster kit blends OEM-quality tech with aftermarket versatility.

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CPBK Bleeder Kit Instructions
Master Cylinder Instructions
PVK instructions

This kit includes:

  1. Fixed

  2. P/N: 6774SRB-OE

    • Description: Power Brake Booster 64-72 A-Body, 67-69 F-Body, 68-74 X-Body, 11in Cadmium Plated
    • Quantity: 1

  3. P/N: M-C118-LLF

    • Description: Cast Iron Power Master Cylinder for1 1/8in Master with 1/2 x 20 and 9/16 x 18 Ports
    • Quantity: 1

  4. P/N: PVKS-B1

    • Description: Proportioning Valve W/Bracket & Lines Brass, Driver's Side, Firewall Mount, 1/2x20 & 9/16x18 Ports
    • Quantity: 1

  5. P/N: H-BBK

    • Description: Basic Booster Install Kit
    • Quantity: 1

  6. P/N: TECH

    • Description: Brake Trouble Shooting Guide
    • Quantity: 1
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