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.
Part #
Product Takes 7 Days to Ship6874BB24-8D
$369.00
1964-72 A-Body 1967-69 F-Body 1968-74 X-Body, 8 in Yellow Zinc Dual Diaphragm Firewall Brake Booster & 1.125 in Bore Master Cylinder and Proportioning Valve, works for 2 and 4 Wheel Disc
The CPP Complete Power Brake Booster Kit (Part Number 6874BB24-8D) fits 64-72 A-Body, 67-69 F-Body, and 68-74 X-Body. It includes an 8" dual gold-plated booster, master cylinder, and proportioning valve combo. Compatible with 2 and 4 wheel disc systems.
| Product Name | 8 in Dual Gold Firewall Booster & Master Cylinder, 1964-74 AFX | SKU | 6874BB24-8D |
| Brake Booster Diameter | 8 | Brake Booster Finish | Gold |
| Brake Booster Type | Dual 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 |
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Customer Questions
This kit includes:
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Fixed
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P/N: 6474BB
- Description: Power Brake Booster Brackets Yellow Zinc (Pr)
- Quantity: 1
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P/N: 6474BPR
- Description: 4.875in Threaded Push Rod Male 3/8-24x3.0in Thread Female 3/8-24x1.25in Thread
- Quantity: 1
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P/N: 8DSRB
- Description: Universal Gold Plated Power Brake Booster, 8in Dual
- Quantity: 1
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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
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P/N: 64012
- Description: After Market Vacuum Booster Dust Cover
- Quantity: 1
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P/N: PVKS-B1
- Description: Proportioning Valve W/Bracket & Lines Brass, Driver's Side, Firewall Mount, 1/2x20 & 9/16x18 Ports
- Quantity: 1
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P/N: H-BBK
- Description: Basic Booster Install Kit
- Quantity: 1
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P/N: TECH
- Description: Brake Trouble Shooting Guide
- Quantity: 1
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